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2010 International Conference on Communications and Mobile Computing最新文献

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A Method of Representing Videos Based on User Interest Model in Mobile Multimedia Service 移动多媒体业务中基于用户兴趣模型的视频表示方法
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.137
Xiang Li, Yang Deng, Wendong Wang, Zou Yanming, Wang Kong-qiao
{"title":"A Method of Representing Videos Based on User Interest Model in Mobile Multimedia Service","authors":"Xiang Li, Yang Deng, Wendong Wang, Zou Yanming, Wang Kong-qiao","doi":"10.1109/CMC.2010.137","DOIUrl":"https://doi.org/10.1109/CMC.2010.137","url":null,"abstract":"With the arrival of 3G era, video representation based on user interest has been an active research area in the past few years. Contrasting to the traditional approaches, which merely involved the interest of most users (e. g. most visited videos on Youtube), this paper proposes a novel video representing method based on individual interest model which is formed by collecting and analyzing user behaviors. Furthermore, this model can be extended into group interest model by introducing multi-dimension homo-interest sequence. Experiment results from 100 user cases and database of 25 videos show the effectiveness of our method.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"7 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":"122716124","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
An Adaptive Learning Automata Algorithm for Channel Selection in Cognitive Radio Network 认知无线网络中信道选择的自适应学习自动机算法
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.328
T. Tuan, L. C. Tong, A. Premkumar
{"title":"An Adaptive Learning Automata Algorithm for Channel Selection in Cognitive Radio Network","authors":"T. Tuan, L. C. Tong, A. Premkumar","doi":"10.1109/CMC.2010.328","DOIUrl":"https://doi.org/10.1109/CMC.2010.328","url":null,"abstract":"Channel selection plays a critical role in cognitive radio networks. In this work, we apply the learning automata techniques to enable a cognitive radio to learn and make decision on channel selection from a set of available channels. The set of randomly available frequency channels is modeled as an unknown environment. As practical networks are usually non-stationary, we propose an adaptive algorithm that enables the cognitive radio to monitor changes in the radio environment and always select the optimal channel after a long run.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"22 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":"122498592","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: 19
A Triple-Band Microstrip Antenna for WLAN Applications 一种用于WLAN应用的三波段微带天线
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.66
Kuang Fuqiang, Shen Dongya, Xu Jie, Shuai Xinfang, Ren Wenping
{"title":"A Triple-Band Microstrip Antenna for WLAN Applications","authors":"Kuang Fuqiang, Shen Dongya, Xu Jie, Shuai Xinfang, Ren Wenping","doi":"10.1109/CMC.2010.66","DOIUrl":"https://doi.org/10.1109/CMC.2010.66","url":null,"abstract":"A novel compact triple-band monopole microstrip antenna for WLAN applications is proposed. The proposed antenna is made up of two one-quarter wavelength resonating components, fed by a 50ohmic microstrip line. The configuration is simple. The resonating frequencies of the proposed antenna are 2.5GHz and 4.8GHz, respectively, the bandwidth is about 500MHz (2.25~2.75GHz) and 2.63GHz (3.82~6.45GHz) (return loss less than -10dB), covering the triple bands of WLAN system. The lower and higher resonant frequencies can be easily tuned by adjusting a few parameters of the presented antenna. This antenna satisfies the requirements of wireless local area network(WLAN) 802.11(2.4~2.484GHz, 5.15~5.35GHz, 5.725~5.825GHz) applications. The softwares of Ansoft HFSS11 and CST Microwave Studio are used to simulate and optimize the antenna.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"18 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":"114243942","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: 14
A Modified Adaptive Pre-distorter for Power Amplifier in OFDM Systems 一种改进的OFDM系统中功率放大器自适应预失真器
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.20
Chuan Qin, Tianhai Chang, Lintong Liu
{"title":"A Modified Adaptive Pre-distorter for Power Amplifier in OFDM Systems","authors":"Chuan Qin, Tianhai Chang, Lintong Liu","doi":"10.1109/CMC.2010.20","DOIUrl":"https://doi.org/10.1109/CMC.2010.20","url":null,"abstract":"This paper focus on the LUT based digital pre-distortion techniques for non-linear power amplifier in OFDM systems. Compared with the conventional adaptive pre-distortion method, a modified method is proposed, which utilizes interpolation algorithm, with a consideration of the amplitude distribution characteristic of OFDM symbols. The performances of the conventional and modified algorithms are compared in terms of the simulation results and analysis, which demonstrates the performance of the modified method is more outstanding.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"1 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":"122064132","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
An Attack Based IMS Vulnerability Validate Platform 基于攻击的IMS漏洞验证平台
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.205
Yuan Shun, S. Kai, Yang Chun
{"title":"An Attack Based IMS Vulnerability Validate Platform","authors":"Yuan Shun, S. Kai, Yang Chun","doi":"10.1109/CMC.2010.205","DOIUrl":"https://doi.org/10.1109/CMC.2010.205","url":null,"abstract":"This paper focuses on IMS vulnerability validation platform’s (IMS-VVP) design which combines the characteristics of the vulnerability of IMS. Attack based validate method is an accurate method and has an intuitive effect of the vulnerability discovery. It is suitable for the IMS network’s safety test before on-line. IMS vulnerabilities are imported by IMS businesses. Attack based vulnerability validation process requires accessing to sensitive information and IMS signaling and the other conditions which will be detailed in this paper. In addition, the paper also describes how to support the vulnerability sequence verification. Experiment shows that IMS-VVP comply with features that IMS-based vulnerability validate tool requires. And it is also loaded with rich examples of attack instances which can correctly and effectively validate IMS network’s vulnerability.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"12 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":"129830940","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
Design and FPGA Implementation of the Fast Algorithm for Extracting Laser Line 激光线提取快速算法的设计与FPGA实现
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.315
Lei Hai-jun, Che Zhanfu, Yang Zhang
{"title":"Design and FPGA Implementation of the Fast Algorithm for Extracting Laser Line","authors":"Lei Hai-jun, Che Zhanfu, Yang Zhang","doi":"10.1109/CMC.2010.315","DOIUrl":"https://doi.org/10.1109/CMC.2010.315","url":null,"abstract":"A fast algorithm of extracting laser line is proposed for real-time image processing in 3DLCS and is compared with the former algorithm. First of all, the threshold S(T) of the laser stripe is computed by host computer unnecessarily in real time. Second the laser stripe is determined in real time. At last the central line of the laser stripe is detected by templates in real time. The fast algorithm was successfully implemented using VC6.0, then simulated successfully programming with Verilog HDL on the “Verilog XL” software which is developed by CANDENCE corporation. The fast algorithm is implemented by FPGA designed as pipelined architecture. The average time of processing every pixel in each step is less than 74ns. The results of emulation and synthesis show that extracting laser line from a frame of standard PAL video image is completed within 40ms. The advantages of the fast algorithm include easy computing, less data throughput, and fast implementation, etc. It reduces greatly information redundancy.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"2 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":"130372668","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
An Improved Approach for PAPR Reduction Based on Tone Reservation Method 一种基于音调保留法的改进PAPR降噪方法
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.290
Zhongqiu He, Hongming Yu
{"title":"An Improved Approach for PAPR Reduction Based on Tone Reservation Method","authors":"Zhongqiu He, Hongming Yu","doi":"10.1109/CMC.2010.290","DOIUrl":"https://doi.org/10.1109/CMC.2010.290","url":null,"abstract":"In wireless communication systems, peak-to-average power ratio (PAPR) is a performance measurement that is indicative of the power efficiency of the transmitter. In this paper, an improved method based on tone reservation method for PAPR reduction was proposed. To improve PAPR reduction performance, the more appropriate magnitude of the time domain PAPR reduction signals was found by the proposed method. Simulation in single carrier frequency division multiple access (SC-FDMA) system demonstrates that PAPR reduction performance of the proposed method is better than that of the original approach when several PAPR reduction subcarriers were used.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"1 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":"126786210","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
Research on Transceiver System of WSN Based on V-MIMO Underground Coal Mines 煤矿井下V-MIMO无线传感器网络收发系统研究
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.287
Jin-ling Song, Heng-wei Gao, Yuli Song
{"title":"Research on Transceiver System of WSN Based on V-MIMO Underground Coal Mines","authors":"Jin-ling Song, Heng-wei Gao, Yuli Song","doi":"10.1109/CMC.2010.287","DOIUrl":"https://doi.org/10.1109/CMC.2010.287","url":null,"abstract":"There is narrow space and harsh environment underground coal mines. When radio signals are transmitted, diffraction, attenuation, multi-path and scattering are often very serious. All the problems make the WSN system difficult to reach the set bit error rate when transmitting images. V-MIMO, which makes every node of the WSN work together, is adopted in the paper. In order to improve the system capability and reliability, virtual multi-antennas receive- diversity-aided method is also used in the paper. What’s more, considering the peculiarity of transmission underground coal mines, the paper uses OFDM wireless transmission to take further advantage of MIMO and improve the reliability in data transmission. So it is possible for the WSN system to transmit image signals underground coal mines.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"149 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":"126922802","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: 24
A New Stopping Criterion for Duo-binary Turbo Codes 一种新的双二进制Turbo码停止准则
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.272
Li Shan, Xie Lei, Huifang Chen, Wang Kuang
{"title":"A New Stopping Criterion for Duo-binary Turbo Codes","authors":"Li Shan, Xie Lei, Huifang Chen, Wang Kuang","doi":"10.1109/CMC.2010.272","DOIUrl":"https://doi.org/10.1109/CMC.2010.272","url":null,"abstract":"This paper describes a novel stopping criterion for duo-binary turbo codes. The correlation between the two bit-level extrinsic information increased as the performance improved by the iterative decoding. In this way, the new method reflects a more reasonable solution for symbol-level decoding of duo-binary turbo codes. Simulation results showed that the proposal criterion was able to reduce the average iterative decoding number with a good error performance as compared to conventional criteria.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"61 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":"129227835","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: 10
Coordinated Beamforming Technology in TD-LTE-Advanced System td - lte先进系统中的协调波束形成技术
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.23
Lin Hui, W. Bo
{"title":"Coordinated Beamforming Technology in TD-LTE-Advanced System","authors":"Lin Hui, W. Bo","doi":"10.1109/CMC.2010.23","DOIUrl":"https://doi.org/10.1109/CMC.2010.23","url":null,"abstract":"As extension of MIMO technology in cellular system with multiple cell sites, Cooperative Network MIMO is a hot topic for the research of future wireless communication. In current study of TD-LTE-Advanced (LTE-Advanced TDD) system, various coordinated beamforming schemes have shown to be very promising candidates. In this paper we introduce a few implementations of coordinated beamforming technology with different levels of coordination, together with system level simulations and analysis.","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":"114352102","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
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