Pub Date : 2014-07-11DOI: 10.1109/ICCCNT.2014.6963073
Shengchao Yan, S. Lv, Juan Qi
In order to realize security checking on power communication operation mode, we introduce a new method for service and system security checking and analyzing, which include the multidimensional analysis and the N-1 service impact analysis. Based on this method we managed to design and realize the system, which can monitor and display the effective mode security checking and result analysis, as well as, highly improve management efficiency for the power communication network.
{"title":"Study and application on power communication operation mode checking and analysis method","authors":"Shengchao Yan, S. Lv, Juan Qi","doi":"10.1109/ICCCNT.2014.6963073","DOIUrl":"https://doi.org/10.1109/ICCCNT.2014.6963073","url":null,"abstract":"In order to realize security checking on power communication operation mode, we introduce a new method for service and system security checking and analyzing, which include the multidimensional analysis and the N-1 service impact analysis. Based on this method we managed to design and realize the system, which can monitor and display the effective mode security checking and result analysis, as well as, highly improve management efficiency for the power communication network.","PeriodicalId":140744,"journal":{"name":"Fifth International Conference on Computing, Communications and Networking Technologies (ICCCNT)","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131255448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-07-11DOI: 10.1109/ICCCNT.2014.6963033
Gui Zou, Lin Ma, Zhongzhao Zhang, Yun Mo
Indoor positioning system in wireless local area network (WLAN) has become more and more popular accompanied by the popularization of GPS. While increasing numbers of access point (AP) enhancing the positioning accuracy little, the complexity increases a lot. To keep balance between the positioning accuracy and the complexity, we summarize three clustering methods named K-means, affinity propagation and fussy c means (FCM). In addition, a novel AP selection method named combination of information gain and mutual information entropy is proposed to decrease the computation cost. To get a higher positioning accuracy, we contrast two fine location methods named K nearest neighbor (KNN) and weighed K nearest neighbor (WKNN). The experiment results indicate that, the positioning accuracy within 2m is improved by using mutual information entropy and WKNN methods. By using cluster method and AP selection, we decrease the computation cost in the online phase a lot.
{"title":"An indoor positioning algorithm using joint information entropy based on WLAN fingerprint","authors":"Gui Zou, Lin Ma, Zhongzhao Zhang, Yun Mo","doi":"10.1109/ICCCNT.2014.6963033","DOIUrl":"https://doi.org/10.1109/ICCCNT.2014.6963033","url":null,"abstract":"Indoor positioning system in wireless local area network (WLAN) has become more and more popular accompanied by the popularization of GPS. While increasing numbers of access point (AP) enhancing the positioning accuracy little, the complexity increases a lot. To keep balance between the positioning accuracy and the complexity, we summarize three clustering methods named K-means, affinity propagation and fussy c means (FCM). In addition, a novel AP selection method named combination of information gain and mutual information entropy is proposed to decrease the computation cost. To get a higher positioning accuracy, we contrast two fine location methods named K nearest neighbor (KNN) and weighed K nearest neighbor (WKNN). The experiment results indicate that, the positioning accuracy within 2m is improved by using mutual information entropy and WKNN methods. By using cluster method and AP selection, we decrease the computation cost in the online phase a lot.","PeriodicalId":140744,"journal":{"name":"Fifth International Conference on Computing, Communications and Networking Technologies (ICCCNT)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127648004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
IPTV clients' sequential zapping behavior can introduce extra traffic load in underlying transmission networks, which may greatly degrade client Quality of Experience (QoE). It is therefore highly desirable to enhance IPTV channel availability (one of the most important QoE metrics) in IPTV systems with clients zapping channels sequentially. To this end, this paper proposes an Active Channel Changing Delay (ACCD) admission control method in combination with an n-layered (one base layer and n-1 enhancement layers) Scalable Video Coding (SVC) profile to alleviate the aforementioned impact caused by client sequential zapping. Comprehensive simulation experiments are carried out and show that the proposed ACCD method are capable of significantly improving channel availability and hence can enhance client QoE in bandwidth restricted IPTV delivery networks, with only slightly increasing the average service delay of channel enhancement layers.
{"title":"An Active Channel Changing Delay method to improve IPTV channel availability","authors":"Junyu Lai, Guolin Sun, Gun Li, Yuankai Li, Kaiyu Qin","doi":"10.1109/ICCCNT.2014.6963027","DOIUrl":"https://doi.org/10.1109/ICCCNT.2014.6963027","url":null,"abstract":"IPTV clients' sequential zapping behavior can introduce extra traffic load in underlying transmission networks, which may greatly degrade client Quality of Experience (QoE). It is therefore highly desirable to enhance IPTV channel availability (one of the most important QoE metrics) in IPTV systems with clients zapping channels sequentially. To this end, this paper proposes an Active Channel Changing Delay (ACCD) admission control method in combination with an n-layered (one base layer and n-1 enhancement layers) Scalable Video Coding (SVC) profile to alleviate the aforementioned impact caused by client sequential zapping. Comprehensive simulation experiments are carried out and show that the proposed ACCD method are capable of significantly improving channel availability and hence can enhance client QoE in bandwidth restricted IPTV delivery networks, with only slightly increasing the average service delay of channel enhancement layers.","PeriodicalId":140744,"journal":{"name":"Fifth International Conference on Computing, Communications and Networking Technologies (ICCCNT)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128914864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-07-11DOI: 10.1109/ICCCNT.2014.6963062
Tao Chen, Feng Wang, Xiaohong Sun, Jianhui Wu
A 2.4 GHz GaAs HBT Class J power amplifier (PA) was presented. This paper analyzed the nonlinear output capacitor character of GaAs HBT, and proposed the load impedance design requirement for high performance power amplifier. The nonlinear output capacitor of transistors with a paralleled lumped capacitor off chip was used to improve the performance of Class J PA. The implemented 2.4 GHz Class J PA shows a saturated output power of 29.5 dBm, with a maximum power added efficiency (PAE) of 51.6 %. Compared with the same biased Class AB PA, the output power is improved by 1.3 dB and the maximum PAE is enhanced by 9.2 %.
{"title":"A high performance 2.4 GHz GaAs HBT class J power amplifier","authors":"Tao Chen, Feng Wang, Xiaohong Sun, Jianhui Wu","doi":"10.1109/ICCCNT.2014.6963062","DOIUrl":"https://doi.org/10.1109/ICCCNT.2014.6963062","url":null,"abstract":"A 2.4 GHz GaAs HBT Class J power amplifier (PA) was presented. This paper analyzed the nonlinear output capacitor character of GaAs HBT, and proposed the load impedance design requirement for high performance power amplifier. The nonlinear output capacitor of transistors with a paralleled lumped capacitor off chip was used to improve the performance of Class J PA. The implemented 2.4 GHz Class J PA shows a saturated output power of 29.5 dBm, with a maximum power added efficiency (PAE) of 51.6 %. Compared with the same biased Class AB PA, the output power is improved by 1.3 dB and the maximum PAE is enhanced by 9.2 %.","PeriodicalId":140744,"journal":{"name":"Fifth International Conference on Computing, Communications and Networking Technologies (ICCCNT)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128963151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-07-11DOI: 10.1109/ICCCNT.2014.6963065
M. Ramesh, P. Rajan, P. Divya
The deployment of a wireless sensor network for real-time monitoring applications encounters numerous challenges. In a typical outdoor scenario the propagation of the radio signal can be affected by several factors like the rainfall, foliage, path loss effect and fading effect. These factors can confront dynamic changes in link quality which will affect the packet delivery rates and can result in the failure of the system. This paper presents an optimized frequency selection for any wireless sensor networks which can enhance the packet delivery ratio at any worst environmental scenarios through a simulated framework in QualNet 5.0.2.
{"title":"Augmenting packet delivery rate in outdoor wireless sensor networks through frequency optimization","authors":"M. Ramesh, P. Rajan, P. Divya","doi":"10.1109/ICCCNT.2014.6963065","DOIUrl":"https://doi.org/10.1109/ICCCNT.2014.6963065","url":null,"abstract":"The deployment of a wireless sensor network for real-time monitoring applications encounters numerous challenges. In a typical outdoor scenario the propagation of the radio signal can be affected by several factors like the rainfall, foliage, path loss effect and fading effect. These factors can confront dynamic changes in link quality which will affect the packet delivery rates and can result in the failure of the system. This paper presents an optimized frequency selection for any wireless sensor networks which can enhance the packet delivery ratio at any worst environmental scenarios through a simulated framework in QualNet 5.0.2.","PeriodicalId":140744,"journal":{"name":"Fifth International Conference on Computing, Communications and Networking Technologies (ICCCNT)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116845831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-07-11DOI: 10.1109/ICCCNT.2014.6963150
Li Cao, Zhan Yuan, B. Chan, Wenping Wang
Rendering over the network is widely used in visualization related applications. In this paper, a novel network rendering method for large-scale digital models is proposed. It uses an extension of textured depth map, called Screen Instance Map (SIM) that stores sparse server rendered results and rebuilds in-between frames in the client. The server side is only responsible for the creation of SIMs. A cache module, which is used to manage the SIMs, is introduced to improve the performance of the client. The proposed method can be applied to arbitrary models and can be easily extended to various rendering methods. Experiment results show that the implemented system can provide interactive frame rate for large-scale models. Compared with existing solutions, this method needs no additional meshes or keeping viewing history for each client in the server.
{"title":"Reprojection of textured depth map for network rendering","authors":"Li Cao, Zhan Yuan, B. Chan, Wenping Wang","doi":"10.1109/ICCCNT.2014.6963150","DOIUrl":"https://doi.org/10.1109/ICCCNT.2014.6963150","url":null,"abstract":"Rendering over the network is widely used in visualization related applications. In this paper, a novel network rendering method for large-scale digital models is proposed. It uses an extension of textured depth map, called Screen Instance Map (SIM) that stores sparse server rendered results and rebuilds in-between frames in the client. The server side is only responsible for the creation of SIMs. A cache module, which is used to manage the SIMs, is introduced to improve the performance of the client. The proposed method can be applied to arbitrary models and can be easily extended to various rendering methods. Experiment results show that the implemented system can provide interactive frame rate for large-scale models. Compared with existing solutions, this method needs no additional meshes or keeping viewing history for each client in the server.","PeriodicalId":140744,"journal":{"name":"Fifth International Conference on Computing, Communications and Networking Technologies (ICCCNT)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125008442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-07-11DOI: 10.1109/ICCCNT.2014.6963032
Tian Chen, Kai Liu, Xin Yi, Dandan Shen, Wei Wang, Fuji Ren, Jun Liu
In order to find the overlapping community structure more quickly and accurately in complex network, this paper proposes a Connected Component-Based Distributed method (CCBD) for overlapping community detection. CCBD first divides edges set in the network into smaller one. Next, it seeks out connected component using distributed platforms and gives a serials number to them according to certain rules. Then, it classifies these connected components according to the serials number. Task nodes determine whether any two connected components and non-propagating edges can be connected to become a larger community. Finally, CCBD negotiates a new serials name for the new community. Through repeated iterations, we get the community structure in the network. Nodes belong to multiple communities are overlapping nodes. Experiment results show that CCBD has higher time efficiency benefiting from distributed computing. Moreover, the quality of communities detected by CCBD surpasses those found by other algorithms.
{"title":"A Connected Component-Based Distributed method for overlapping community detection","authors":"Tian Chen, Kai Liu, Xin Yi, Dandan Shen, Wei Wang, Fuji Ren, Jun Liu","doi":"10.1109/ICCCNT.2014.6963032","DOIUrl":"https://doi.org/10.1109/ICCCNT.2014.6963032","url":null,"abstract":"In order to find the overlapping community structure more quickly and accurately in complex network, this paper proposes a Connected Component-Based Distributed method (CCBD) for overlapping community detection. CCBD first divides edges set in the network into smaller one. Next, it seeks out connected component using distributed platforms and gives a serials number to them according to certain rules. Then, it classifies these connected components according to the serials number. Task nodes determine whether any two connected components and non-propagating edges can be connected to become a larger community. Finally, CCBD negotiates a new serials name for the new community. Through repeated iterations, we get the community structure in the network. Nodes belong to multiple communities are overlapping nodes. Experiment results show that CCBD has higher time efficiency benefiting from distributed computing. Moreover, the quality of communities detected by CCBD surpasses those found by other algorithms.","PeriodicalId":140744,"journal":{"name":"Fifth International Conference on Computing, Communications and Networking Technologies (ICCCNT)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125552632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-07-11DOI: 10.1109/ICCCNT.2014.6963153
Hua Yang, Xiao-Jun Yang
Against Self-organizing networks for automotive large-scale network scenario, in a McMAC multichannel protocol based on adding clustering considerations, proposed an improved multi-channel MAC protocol. In this protocol vehicles organized into different clusters, the traditional single medium is divided into a plurality of control channels and one data channel. Clusters within and between clusters of data communication channel using TDMA/CDMA technology, control channel using CSMA/CA protocol. Simulation results show that compare to the Dynamical Control Assignment and McMAC, the improved protocol significantly enhances the performance indicators like probability of successful packet reception, channel access time, congestion control etc.
{"title":"An improved multi-channel mac protocol in vehicle-to-vehicle communication system","authors":"Hua Yang, Xiao-Jun Yang","doi":"10.1109/ICCCNT.2014.6963153","DOIUrl":"https://doi.org/10.1109/ICCCNT.2014.6963153","url":null,"abstract":"Against Self-organizing networks for automotive large-scale network scenario, in a McMAC multichannel protocol based on adding clustering considerations, proposed an improved multi-channel MAC protocol. In this protocol vehicles organized into different clusters, the traditional single medium is divided into a plurality of control channels and one data channel. Clusters within and between clusters of data communication channel using TDMA/CDMA technology, control channel using CSMA/CA protocol. Simulation results show that compare to the Dynamical Control Assignment and McMAC, the improved protocol significantly enhances the performance indicators like probability of successful packet reception, channel access time, congestion control etc.","PeriodicalId":140744,"journal":{"name":"Fifth International Conference on Computing, Communications and Networking Technologies (ICCCNT)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116621775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-07-11DOI: 10.1109/ICCCNT.2014.6963138
H. Shoja, Hosseini Nahid, Reza Azizi
Clouds are high configured infrastructure delivers platform, software as service, which helps customers to make subscription for their requirements under the pay as you go model. Cloud computing is spreading globally, due to its easy and simple service oriented model. The numbers of users accessing the cloud are rising day by day. Generally cloud is based on data centers which are powerful to handle large number of users. The reliability of clouds depends on the way it handles the loads, to overcome such problem clouds must be featured with the load balancing mechanism. The goal of balancing the load of virtual machines is to reduce energy consumption and provide maximum resource utilization thereby reducing the number of job rejections. This paper is a brief discussion on the existing load balancing techniques in cloud computing and further compares them based on various parameters like response time and Data processing time etc. The results discussed in this paper, based on existing Round Robin and Throttled scheduling algorithms.
{"title":"A comparative survey on load balancing algorithms in cloud computing","authors":"H. Shoja, Hosseini Nahid, Reza Azizi","doi":"10.1109/ICCCNT.2014.6963138","DOIUrl":"https://doi.org/10.1109/ICCCNT.2014.6963138","url":null,"abstract":"Clouds are high configured infrastructure delivers platform, software as service, which helps customers to make subscription for their requirements under the pay as you go model. Cloud computing is spreading globally, due to its easy and simple service oriented model. The numbers of users accessing the cloud are rising day by day. Generally cloud is based on data centers which are powerful to handle large number of users. The reliability of clouds depends on the way it handles the loads, to overcome such problem clouds must be featured with the load balancing mechanism. The goal of balancing the load of virtual machines is to reduce energy consumption and provide maximum resource utilization thereby reducing the number of job rejections. This paper is a brief discussion on the existing load balancing techniques in cloud computing and further compares them based on various parameters like response time and Data processing time etc. The results discussed in this paper, based on existing Round Robin and Throttled scheduling algorithms.","PeriodicalId":140744,"journal":{"name":"Fifth International Conference on Computing, Communications and Networking Technologies (ICCCNT)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129650494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2014-07-11DOI: 10.1109/ICCCNT.2014.6963011
Xinyue Zhang, Zhenyong Wang
Land Mobile Satellite (LMS) communication system has been playing a significant role in wireless broadcasting and communication network. Dual-polarized Multiple-Input Multiple-Out (MIMO) technology can be applied to LMS to enhance the spectrum efficiency and capacity. In this paper, a statistical model is designed to simulate the channel characteristics by analyzing the large scale fading and small scale fading components. Important channel factors are considered and analyzed including temporal and polarization correlation, Doppler Shift effect, cross-polar discrimination (XPD), cross-polar coupling (CPC) and angle of arrival. The channel statistical characteristics and outage capacity are simulated and to verify that dual-polarized MIMO technology can improve systematic performance of traditional LMS system.
{"title":"Characteristics of narrow band dual-polarized MIMO over satellite channel model","authors":"Xinyue Zhang, Zhenyong Wang","doi":"10.1109/ICCCNT.2014.6963011","DOIUrl":"https://doi.org/10.1109/ICCCNT.2014.6963011","url":null,"abstract":"Land Mobile Satellite (LMS) communication system has been playing a significant role in wireless broadcasting and communication network. Dual-polarized Multiple-Input Multiple-Out (MIMO) technology can be applied to LMS to enhance the spectrum efficiency and capacity. In this paper, a statistical model is designed to simulate the channel characteristics by analyzing the large scale fading and small scale fading components. Important channel factors are considered and analyzed including temporal and polarization correlation, Doppler Shift effect, cross-polar discrimination (XPD), cross-polar coupling (CPC) and angle of arrival. The channel statistical characteristics and outage capacity are simulated and to verify that dual-polarized MIMO technology can improve systematic performance of traditional LMS system.","PeriodicalId":140744,"journal":{"name":"Fifth International Conference on Computing, Communications and Networking Technologies (ICCCNT)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134213860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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