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2010 IEEE 12th International Conference on Communication Technology最新文献

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Graph-based soft iterative receiver for higher-order modulation 基于图形的高阶调制软迭代接收机
2010 IEEE 12th International Conference on Communication Technology Pub Date : 2010-11-01 DOI: 10.1109/ICCT.2010.5688692
Zhenyu Shi, T. Wo, P. Hoeher, G. Auer
{"title":"Graph-based soft iterative receiver for higher-order modulation","authors":"Zhenyu Shi, T. Wo, P. Hoeher, G. Auer","doi":"10.1109/ICCT.2010.5688692","DOIUrl":"https://doi.org/10.1109/ICCT.2010.5688692","url":null,"abstract":"In this paper, we propose a graph-based soft iterative receiver (GSIR) for higher-order modulation. The performance characteristics of this kind of receiver is investigated via an EXIT chart analysis. Interpolation helps to provide reliable channel estimates for the whole data burst at the initialization stage. Additionally, our proposed receiver algorithm is compared with various interpolation-based initialization methods by Monte-Carlo simulations.","PeriodicalId":253478,"journal":{"name":"2010 IEEE 12th International Conference on Communication Technology","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129104375","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}
引用次数: 8
A novel indoor localization scheme 一种新的室内定位方案
2010 IEEE 12th International Conference on Communication Technology Pub Date : 2010-11-01 DOI: 10.1109/ICCT.2010.5689215
Hailiang Xiong, Hui Song, Zhihua Lai, Jie Zhang, K. Yi
{"title":"A novel indoor localization scheme","authors":"Hailiang Xiong, Hui Song, Zhihua Lai, Jie Zhang, K. Yi","doi":"10.1109/ICCT.2010.5689215","DOIUrl":"https://doi.org/10.1109/ICCT.2010.5689215","url":null,"abstract":"Ultra-wideband (UWB) receivers can resolve individual multipath components (MPCs), due to the signal occupied a large bandwidths, so they are capable of accurately estimating the time of flight of the signal. To realize high-accuracy indoor localization, a novel UWB locating scheme through estimating the round trip time (RTT) of UWB signal is proposed. Each reference station (RS) transmits the baseband pulse modulated UWB signals. The signals are received by the user terminals (UT) and sent back to the original RS using a different carrier frequency. We can easily calculate the position of the UT by detecting the time gap between the feedback signal and the origin signal. Meanwhile, the multi-path detection algorithm for RTT estimation is presented and the localization performance of the proposed scheme is tested under IEEE 802.15.4a channel models. Experiments demonstrate that the proposed scheme can realize high accuracy localization with an error around the centimeter level.","PeriodicalId":253478,"journal":{"name":"2010 IEEE 12th International Conference on Communication Technology","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129196441","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}
引用次数: 6
Delay-Sensitive and Power-Aware routing in wireless ad hoc networks 无线自组织网络中的延迟敏感和功率感知路由
2010 IEEE 12th International Conference on Communication Technology Pub Date : 2010-11-01 DOI: 10.1109/ICCT.2010.5688880
Haojun Huang, Guangmin Hu, Fucai Yu
{"title":"Delay-Sensitive and Power-Aware routing in wireless ad hoc networks","authors":"Haojun Huang, Guangmin Hu, Fucai Yu","doi":"10.1109/ICCT.2010.5688880","DOIUrl":"https://doi.org/10.1109/ICCT.2010.5688880","url":null,"abstract":"Power control in wireless ad hoc networks is very important and useful for its some application such as battlefield, where node battery recharging is usually impossible. However, it can not guarantee to provide a route with minimal network delay for data delivery due to bandwidth-constrained, variable-capacity links and dynamic topology and so on. Many ad hoc networks applications must resolve the inherent conflict between energy efficient communication and the need to achieve desired end-to-end network delay. To address this challenge, we propose a Delay-Sensitive and Power-Aware routing protocol (DSPA). This proposal builds different routing entries based on network delay from source to destination at different power levels on demand, and selects the minimum power level routing for data delivery. Moreover, DSPA uses different power control policies to transmit data packets, as well as the control packets of network layer and MAC layer. Simulation results show that our protocol can not only effectively reduce energy consumption, thus prolong the network lifetime, but also significantly improve average end-to-end delay while maintaining a good packet delivery ratio.","PeriodicalId":253478,"journal":{"name":"2010 IEEE 12th International Conference on Communication Technology","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130646963","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}
引用次数: 8
Spectrum trading in OFDMA-based cognitive radio systems 基于ofdma的认知无线电系统频谱交易
2010 IEEE 12th International Conference on Communication Technology Pub Date : 2010-11-01 DOI: 10.1109/ICCT.2010.5689168
B. Da, Rui Zhang, C. Ko
{"title":"Spectrum trading in OFDMA-based cognitive radio systems","authors":"B. Da, Rui Zhang, C. Ko","doi":"10.1109/ICCT.2010.5689168","DOIUrl":"https://doi.org/10.1109/ICCT.2010.5689168","url":null,"abstract":"This paper briefly presents a novel spectrum trading model for OFDMA-based cognitive radio systems. In this model, primary users are able to trade their spare subcarriers with secondary users. Specifically, each subcarrier is priced by primary users and sold to secondary users for better utilities. Also, the issues of pricing policies and market equilibrium are discussed.","PeriodicalId":253478,"journal":{"name":"2010 IEEE 12th International Conference on Communication Technology","volume":" 41","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120831301","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}
引用次数: 0
Performance analysis of smart antenna with mono-and dual-polarization in TD-LTE system TD-LTE系统中单双极化智能天线性能分析
2010 IEEE 12th International Conference on Communication Technology Pub Date : 2010-11-01 DOI: 10.1109/ICCT.2010.5689311
X. Yang, Yuexing Peng, Chunjing Hu, Muzi Wu, Wenbo Wang
{"title":"Performance analysis of smart antenna with mono-and dual-polarization in TD-LTE system","authors":"X. Yang, Yuexing Peng, Chunjing Hu, Muzi Wu, Wenbo Wang","doi":"10.1109/ICCT.2010.5689311","DOIUrl":"https://doi.org/10.1109/ICCT.2010.5689311","url":null,"abstract":"Research on smart antenna has been incorporated in the evolution path from TD-SCDMA to TD-LTE. To reduce the array size of the mono-polarized smart antenna in TD-SCDMA systems, dual-polarization scheme is considered to facilitate the application of smart antenna in TD-LTE systems. In this paper, we investigate the performance degradation due to dual-polarization for smart antenna in TD-LTE system. The beamforming gain and the diversity gain of the smart antennas with two polarization schemes are analyzed, and then followed the numerical simulation. Both the analysis and the simulation show that the dual-polarization scheme pays a little penalty of slight signal-to-noise (SNR) loss for the great decrease of array size that greatly facilitates the application of antenna array.","PeriodicalId":253478,"journal":{"name":"2010 IEEE 12th International Conference on Communication Technology","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121284251","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}
引用次数: 4
A probe-fed stacked plate antenna with stub for CMMB terrestrial Single Frequency Network 一种用于CMMB地面单频网络的带存根的探针馈电堆叠板天线
2010 IEEE 12th International Conference on Communication Technology Pub Date : 2010-11-01 DOI: 10.1109/ICCT.2010.5688685
S. Fang, Zhongbao Wang, Shiqiang Fu
{"title":"A probe-fed stacked plate antenna with stub for CMMB terrestrial Single Frequency Network","authors":"S. Fang, Zhongbao Wang, Shiqiang Fu","doi":"10.1109/ICCT.2010.5688685","DOIUrl":"https://doi.org/10.1109/ICCT.2010.5688685","url":null,"abstract":"A probe-fed stacked plate antenna with a stub is proposed for CMMB terrestrial Single Frequency Network (SNF) applications. The radiating plates, which act as typical radiators, are designed based on standard rules for designing conventional microstrip antennas. To obtain 50 Ohm impedance matching, a rectangular stub is attached to one of the radiating edges of the main plate and is coplanar with the main plate. By tuning the stub, the input resistance and reactance can be easily determined. This method is used to design a rectangular suspended probe-fed stacked plate antenna. Experimental results show that this design is capable of achieving a VSWR 1.1∶1 impedance bandwidth of about 7.5%, relatively stable radiation patterns, and a gain level of about 9.6 dBi. The high gain and low VSWR make it suitable for CMMB terrestrial SNF applications.","PeriodicalId":253478,"journal":{"name":"2010 IEEE 12th International Conference on Communication Technology","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127709249","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}
引用次数: 0
Energy consumption evaluation of the opportunistic relaying in 802.11 ad hoc networks 802.11自组织网络中机会中继的能耗评估
2010 IEEE 12th International Conference on Communication Technology Pub Date : 2010-11-01 DOI: 10.1109/ICCT.2010.5689002
Xurong Pi, Yueming Cai, Nan Li
{"title":"Energy consumption evaluation of the opportunistic relaying in 802.11 ad hoc networks","authors":"Xurong Pi, Yueming Cai, Nan Li","doi":"10.1109/ICCT.2010.5689002","DOIUrl":"https://doi.org/10.1109/ICCT.2010.5689002","url":null,"abstract":"As one of the cooperative technologies in WLANs, opportunistic relaying is proved to be efficient, flexible and easy to be implemented. We analyze the opportunistic relaying with the concern of energy consumed by one MB data transmitting at the MAC layer and find the relationship between the energy consumption and the network parameters. Meanwhile, we search for the threshold outage probability above which the employing of opportunistic relaying can bring benefits to the network energy consumption. At last, we compare the opportunistic relay and the cooperative coding relay scheme in the term of energy consumption, the result confirms that the opportunistic relaying is more energy-efficient.","PeriodicalId":253478,"journal":{"name":"2010 IEEE 12th International Conference on Communication Technology","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127927543","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}
引用次数: 0
A node Interest Similarity based P2P Trust Model 基于节点兴趣相似度的P2P信任模型
2010 IEEE 12th International Conference on Communication Technology Pub Date : 2010-11-01 DOI: 10.1109/ICCT.2010.5688911
Li Yang, Yu-sen Zhang, Chang-you Xing, Zhang Tao
{"title":"A node Interest Similarity based P2P Trust Model","authors":"Li Yang, Yu-sen Zhang, Chang-you Xing, Zhang Tao","doi":"10.1109/ICCT.2010.5688911","DOIUrl":"https://doi.org/10.1109/ICCT.2010.5688911","url":null,"abstract":"Reputation based trust model is an important way to solve the non-cooperation and malicious behaviors of nodes in P2P networks. Current single trust model hides the behavior details of nodes in different field, thus it cannot defend the strategic attack of malicious nodes. A node Interest Similarity based P2P Trust Model (ISTrust) is proposed, which takes both node interest bias and reputations in each interest domain into consideration, and uses interest domain reputation vector to maintain the behaviors of node in specific interest domain. When calculating reputations of other nodes, ISTrust uses interest similarity between nodes to weight domain local trust recommendation, thus restrains the slandering and exaggeration attacks of malicious nodes, and gives good nodes incentives to provide contribution in many domains. Simulation results show that ISTrust is more efficient and secure than EigenRep.","PeriodicalId":253478,"journal":{"name":"2010 IEEE 12th International Conference on Communication Technology","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134441863","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}
引用次数: 8
An efficient error concealment algorithm for intra-frames of H.264 一种有效的H.264帧内错误隐藏算法
2010 IEEE 12th International Conference on Communication Technology Pub Date : 2010-11-01 DOI: 10.1109/ICCT.2010.5688920
Huang Hui, Cao Tie-yong
{"title":"An efficient error concealment algorithm for intra-frames of H.264","authors":"Huang Hui, Cao Tie-yong","doi":"10.1109/ICCT.2010.5688920","DOIUrl":"https://doi.org/10.1109/ICCT.2010.5688920","url":null,"abstract":"Error concealment with good restored video quality and low computational cost is significantly required for video streams transmitted in error-prone channels. An efficient error concealment algorithm for intra-frame is proposed. Circular order interpolation method is used to prevent the accumulation of prediction error. Meanwhile the modified inter-frame motion compensation is used when all the adjacent blocks are error to improve the effect of error concealment. The experimental results show that the proposed algorithm can restore more texture information and improve the quality both subjectively and objectively greatly.","PeriodicalId":253478,"journal":{"name":"2010 IEEE 12th International Conference on Communication Technology","volume":"122 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134161292","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}
引用次数: 3
Considerations of UWB circular disc antenna miniaturization 超宽带圆盘天线小型化的思考
2010 IEEE 12th International Conference on Communication Technology Pub Date : 2010-11-01 DOI: 10.1109/ICCT.2010.5689148
Leilei Liu, Xiaoxiong Shi, Yan Zhang
{"title":"Considerations of UWB circular disc antenna miniaturization","authors":"Leilei Liu, Xiaoxiong Shi, Yan Zhang","doi":"10.1109/ICCT.2010.5689148","DOIUrl":"https://doi.org/10.1109/ICCT.2010.5689148","url":null,"abstract":"In this paper, we present the considerations on miniaturizing the size of the circular disc antennas, which are often used in UWB applications. Quarter circular disc antenna has been proposed to reduce the antenna size to approximately one fourth of the original circular one. Tapered microstrip feed line and hollowed disc designs have been adopted for enhancing the impedance matching. The developed antenna has a size as small as 13.5*25 mm and it covers the entire bandwidth of 3.1–10.6 GHz. The antenna possesses a good omni-directional radiation patterns in its H-plane and a tilt beam direction in the E-plane. Finally, the promising usage of the proposed antenna has also been discussed.","PeriodicalId":253478,"journal":{"name":"2010 IEEE 12th International Conference on Communication Technology","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130687997","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}
引用次数: 1
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