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2010 International Conference on Communications and Mobile Computing最新文献

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Second Order of an Improved Deterministic Model for Rayleigh Fading Channels 瑞利衰落信道的二阶改进确定性模型
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.63
Huo Kai, Cui Chen
{"title":"Second Order of an Improved Deterministic Model for Rayleigh Fading Channels","authors":"Huo Kai, Cui Chen","doi":"10.1109/CMC.2010.63","DOIUrl":"https://doi.org/10.1109/CMC.2010.63","url":null,"abstract":"In this paper, second order statistics such as, Autocorrelation (ACF), Level crossing rate (LCR) and average fade duration (AFD) of an improved deterministic model is analyzed. Simulation results are presented by using different methods for the design of the parameters of the deterministic simulation model. Compared to the generalized method of exact Doppler spread (GMEDS), method of Lp-norm, and original method of exact Doppler spread (MEDS), the improved method has the best performance in ACF, LCR, and AFD no matter what inphase or quadruture components. Moreover, it has closed form expression of Doppler frequency, and if the random wobble amplitude of Doppler frequency is set to be an infinitesimal real value, the second order statistics of the improved model will match the desired ones perfectly.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"158 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121413415","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
Blind Multiuser Detection Based on Nonlinear Power Estimation 基于非线性功率估计的盲多用户检测
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.209
Guanghui Xu
{"title":"Blind Multiuser Detection Based on Nonlinear Power Estimation","authors":"Guanghui Xu","doi":"10.1109/CMC.2010.209","DOIUrl":"https://doi.org/10.1109/CMC.2010.209","url":null,"abstract":"A nonlinear parameter estimation algorithm is proposed to improve the blind multiuser detection based on power estimation (Kalman-P). In view of the estimation error of power of the desired user, the nonlinear mu-law compression function in communication theory is applied in our proposed algorithm. Computer simulations show that the new detection scheme has better performance in signal-to-interference ratio (SIR) than the Kalman-P.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"244 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121158426","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 DoS Attack Effect Evaluation Method Based on Multi-source Data Fusion 基于多源数据融合的DoS攻击效果评估方法
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.198
Li-juan Zhang, Yan Cao, Qing-xian Wang
{"title":"A DoS Attack Effect Evaluation Method Based on Multi-source Data Fusion","authors":"Li-juan Zhang, Yan Cao, Qing-xian Wang","doi":"10.1109/CMC.2010.198","DOIUrl":"https://doi.org/10.1109/CMC.2010.198","url":null,"abstract":"Existing DoS attack effect evaluation methods can be classified to two types based on attack types and attacked targets. We discuss their deficiencies on realisability, genaralization and index-relativity. From service requester's point of view, a new evaluation method is presented through single source detecting and multi-source data fusion. Algorithms aim at target types such as the node and the net are designed. And an evaluation model is built to test and verify the soundness of the algorithms. The results are more objective and effective, and meet the demands of remote evaluation.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125008270","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
Study on Anti-collision Q Algorithm for UHF RFID 超高频RFID防碰撞Q算法研究
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.245
Ying Chen, F. Zhang
{"title":"Study on Anti-collision Q Algorithm for UHF RFID","authors":"Ying Chen, F. Zhang","doi":"10.1109/CMC.2010.245","DOIUrl":"https://doi.org/10.1109/CMC.2010.245","url":null,"abstract":"UHF RFID technology provides significant advantages over traditional object-tracking technologies and it is increasingly adopted and deployed in real applications. Tags collision problem is the key problem affecting the reading efficiency in UHF RFID systems. In this paper, it proposed fixed Q algorithm and adaptive Q algorithm to anti-collision. Both analytical and simulation results show that comparing to the fixed Q algorithm, adaptive Q algorithm increases the reading efficiency significantly.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121374193","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: 13
Design of a 100Tb/s Multicast-capable Optical Packet Router (Invited) 100Tb/s多播光分组路由器的设计(特邀)
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.50
T. Cheng, Y. Yeo, Yixin Wang, Gaoxi Xiao, Luying Zhou, Dawei Wang, Zhaowen Xu, Jianguo Liu
{"title":"Design of a 100Tb/s Multicast-capable Optical Packet Router (Invited)","authors":"T. Cheng, Y. Yeo, Yixin Wang, Gaoxi Xiao, Luying Zhou, Dawei Wang, Zhaowen Xu, Jianguo Liu","doi":"10.1109/CMC.2010.50","DOIUrl":"https://doi.org/10.1109/CMC.2010.50","url":null,"abstract":"The capacity of today’s top-end core routers is only about 1Tb/s. If the router capacity were to continue to grow at the same rate as the past 20 years, we would need 100Tb/s routers by 2012. The two major projects that aim to design plain 100Tb/s packet routers are LASOR and IRIS. In our project, we aim to design a multicast capable 100Tb/s packet and an integrated platform for optical packet switching and wavelength routing. We will describe the router architecture, the integrated platform, and selected enabling technologies we have developed and experimentally demonstrated, which include a high speed switch fabric with high port counts, an optical packet label swapping technique, an optical loop buffer design, and a wavelength multicasting structure.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"249 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114258263","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 of HARQ with AMC Schemes in LTE Downlink LTE下行链路中基于AMC的HARQ性能研究
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.294
Zhongqiu He, Fei Zhao
{"title":"Performance of HARQ with AMC Schemes in LTE Downlink","authors":"Zhongqiu He, Fei Zhao","doi":"10.1109/CMC.2010.294","DOIUrl":"https://doi.org/10.1109/CMC.2010.294","url":null,"abstract":"The downlink of the Long Term Evolution (LTE) would be OFDMA based and combination of Hybrid ARQ at the data link layer with adaptive modulation and coding (AMC) at the physical layer might be employed. Constellation rearrangement (CR) technique is used in HARQ to enhance MQAM performance. An improved mapping method is used in full IR to enhance system performance. An improved SNR estimation algorithm which reduces computational time is applied to get CQI and corresponding modulation and coding scheme is chosen to maximize throughput performance. Simulation results show that the joint design of AMC and HARQ can achieve considerable spectral efficiency gain.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130150952","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: 17
Computer Optimization in Biomechanics in Large Strain Level Compression Test 大应变水平压缩试验生物力学的计算机优化
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.129
Na Li, Jianxin Liu
{"title":"Computer Optimization in Biomechanics in Large Strain Level Compression Test","authors":"Na Li, Jianxin Liu","doi":"10.1109/CMC.2010.129","DOIUrl":"https://doi.org/10.1109/CMC.2010.129","url":null,"abstract":"In the united states, traumatic brain injury (TBI) is the most common cause of death in vehicular crash. Biomechanical analysis of brain tissue is necessary because the experiment cost too much and the modeling achieved the mechanical simulation in vehicular crash. In order to obtain the mechanical properties of human brain tissue, in last 35 years, people did compression, shear, and oscillatory loading. The material modeling and the parameter reported vary from study to study. In this paper a method was utilizing to obtain uniform material properties by using Non-dominated Sorting Genetic Algorithm-II (NSGA-II). Ogden energy destiny function was utilized as the main constructive function in hyperelastic part, as the stress-strain curve vary with different strain rate, the G and beta present the relationship between stress and velocity in this material properties. Through Estes’s test, this optimization method obtain the mu is 882 Pa and alpha is 4.852, G is 29300 Pa.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113965578","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
Self-Adaptive Control of Video Transmission Based on Available Bandwidth Estimation 基于可用带宽估计的视频传输自适应控制
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.244
Hongcai Feng, Cao Yuan, Yaqin Li
{"title":"Self-Adaptive Control of Video Transmission Based on Available Bandwidth Estimation","authors":"Hongcai Feng, Cao Yuan, Yaqin Li","doi":"10.1109/CMC.2010.244","DOIUrl":"https://doi.org/10.1109/CMC.2010.244","url":null,"abstract":"Considering utilizing network resources efficiently and the demand of real-time for video based application, the video bit rate should be alterable according to the available network bandwidth. This paper focuses on the self-adaptation variable bandwidth technology for video transmission, and explores the key technologies in the implementation of self-adaptation algorithms. Furthermore, this paper proposes a new scheme which can adapt quantization step depends on the available bandwidth and optimize video output bit-rate by the analysis of kinds of H.246 rate control scheme.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115153667","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
Intelligent QoS Unicast Routing Scheme in SON SON中的智能QoS单播路由方案
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.236
Xingwei Wang, Xuejiao Li, Hui Cheng, Min Huang, Weidong Wang, Xiaolei Huang
{"title":"Intelligent QoS Unicast Routing Scheme in SON","authors":"Xingwei Wang, Xuejiao Li, Hui Cheng, Min Huang, Weidong Wang, Xiaolei Huang","doi":"10.1109/CMC.2010.236","DOIUrl":"https://doi.org/10.1109/CMC.2010.236","url":null,"abstract":"In this paper, a swarm intelligence based quality of service (QoS) unicast routing scheme is proposed for self-organized network (SON). The inaccurate routing information is described with fuzzy methods whilst the utilities of both the user and the network provider are taken into account by applying gaming. Based on AntNet algorithm, a QoS unicast path is found on which Pareto optimum is approached or achieved under Nash equilibrium of the user utility and the network provider utility.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128152164","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
Interference Suppressing and Null Broadening Method for GNSS Receiver Based on Circular Antenna Array 基于圆形天线阵的GNSS接收机干扰抑制与零宽展宽方法
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.276
Enxiao Liu, Wei-Xiao Meng, Guang-hua Zhang
{"title":"Interference Suppressing and Null Broadening Method for GNSS Receiver Based on Circular Antenna Array","authors":"Enxiao Liu, Wei-Xiao Meng, Guang-hua Zhang","doi":"10.1109/CMC.2010.276","DOIUrl":"https://doi.org/10.1109/CMC.2010.276","url":null,"abstract":"How to improve the performance of Global Navigation Satellite System (GNSS) receiver in purposive interferences and complex electromagnetic environment is a challenge topic. Moreover, the small angle offset in interference direction, which is caused by high-speed relative motion between jammer and receiver makes big trouble for anti-jammering processing. Although some null broadening technics have been proposed to deal with this situation, they all aim at linear array, which is not applicable for practical situation. This paper introduces Generalized Sidelobe Canceller (GSLC) configuration, which is insensitive to array imperfections, and Adaptive Digital Beamforming (ADBF) algorism in circular array to suppress interferences, and formulates the null broadening model in circular condition by correcting covariance matrix, which solve the problem of interference directions mismatch. Simulation results demonstrate that the proposed method could suppress as many interferences as the theoretical maximum and null can be broadened significantly by correcting covariance matrix.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132749838","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
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