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2011 Third International Conference on Communications and Mobile Computing最新文献

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Shrinking MTU to Mitigate TCP Incast Throughput Collapse in Data Center Networks 缩小MTU以减轻数据中心网络中TCP Incast吞吐量崩溃
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.68
P. Zhang, Hongbo Wang, Shiduan Cheng
{"title":"Shrinking MTU to Mitigate TCP Incast Throughput Collapse in Data Center Networks","authors":"P. Zhang, Hongbo Wang, Shiduan Cheng","doi":"10.1109/CMC.2011.68","DOIUrl":"https://doi.org/10.1109/CMC.2011.68","url":null,"abstract":"More and more data centers are built using commodity TCP/IP and Ethernet networks because of their low cost and ease-of-use. But TCP would experience catastrophic throughput collapse in a communication pattern, termed \"Incast\", where multiple senders simultaneously send data to a receiver. This phenomenon potentially arises in many typical applications, such as distributed storage, Map Reduce and web search. However, solutions proposed by former research either are not easy to implement or high in cost. In this paper, we present a simple and cost-effective method -- shrinking MTU -- to mitigate TCP In cast throughput collapse. Through analysis and extensive simulations, decreasing MTU size can delay the onset of In cast.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126092400","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: 20
Generation of OFDM-MSK Signal and Its Application for Radio over Fiber System in Future Access Network OFDM-MSK信号的产生及其在未来接入网光纤无线系统中的应用
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.111
Yufeng Shao, N. Chi
{"title":"Generation of OFDM-MSK Signal and Its Application for Radio over Fiber System in Future Access Network","authors":"Yufeng Shao, N. Chi","doi":"10.1109/CMC.2011.111","DOIUrl":"https://doi.org/10.1109/CMC.2011.111","url":null,"abstract":"In this paper, we experimentally propose generation, transmission and reception of an optical OFDM-MSK signal in the architecture for seamless integration of radio over fiber system with WDM-PON. Our experimental results suggest that this scheme will be a promising candidate for next generation access network.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126404617","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: 7
Evaluation of Forward Error Correction Scheme for Underwater Wireless Optical Communication 水下无线光通信前向纠错方案的评价
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.49
Xinsheng Yu, Weiwei Jin, Meihong Sui, Zhigong Lan
{"title":"Evaluation of Forward Error Correction Scheme for Underwater Wireless Optical Communication","authors":"Xinsheng Yu, Weiwei Jin, Meihong Sui, Zhigong Lan","doi":"10.1109/CMC.2011.49","DOIUrl":"https://doi.org/10.1109/CMC.2011.49","url":null,"abstract":"The advantage of optical wireless communication of high bandwidth and low cost makes it appeal for underwater communication applications. In this paper, an underwater optical communication system with On-Off Key modulation and forward error correction coding scheme is evaluated. The simulated results show that the bit error rate of RS (Reed-Solomon) code has better performance than BCH (Bose Chaudhuri Hocquenghem) scheme. At the bit error rate of10-5, the signal noise ratio of RS code can be improved around 4dB in comparison with un-coded system. The results suggested that the error control coding technique could be a useful way to improve the reliability of optical communication in unreliable oceanography environment.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127751786","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: 7
HDTV Video Quality Objective Assessment Based on H.264 Compressed Domain 基于H.264压缩域的高清电视视频质量客观评价
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.52
Y. Cheng, Xiuhua Jiang, Caihong Wang
{"title":"HDTV Video Quality Objective Assessment Based on H.264 Compressed Domain","authors":"Y. Cheng, Xiuhua Jiang, Caihong Wang","doi":"10.1109/CMC.2011.52","DOIUrl":"https://doi.org/10.1109/CMC.2011.52","url":null,"abstract":"An objective quality assessment method for H.264 high definition (HD) video streams in the compressed domain is presented in this paper. Based on the H.264 open-source codec project JM12.4, we design an efficient system to extract two video features as the input vectors without fully decoding the videos. These features are analyzed by Least Squares method. Fourteen HD sequences coded at four kinds of bit-rates are tested in our experiment. The experimental results show that this system obtains an accurate quality evaluation. In addition, our methods can be applied to real time monitoring, since the model does not require the source pictures, or a complete decoding process, and can get a good corresponding with the subjective assessments results.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122578390","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 Mobile Phone-Based Speech Processor for Cochlear Implant 基于手机的人工耳蜗语音处理器研究
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.109
Liu Tuo, Guan Tian, Gong Qin
{"title":"Study on Mobile Phone-Based Speech Processor for Cochlear Implant","authors":"Liu Tuo, Guan Tian, Gong Qin","doi":"10.1109/CMC.2011.109","DOIUrl":"https://doi.org/10.1109/CMC.2011.109","url":null,"abstract":"This paper describes an implementation of a cochlear implant speech signal processing platform by using a windows mobile phone. This platform implemented the speech signal acquisition, speech signal processing, liquid crustal displaying, controlling and data transmission functions. And it accomplished a series of signal processing functions including pre-processing, pre-emphasis, sub-band extraction, envelope extraction and compression. In this paper, we report on the real-time implementation of the continuous interleaved sampling algorithm on the mobile phone processor platform, which has similar results to the commercially available implant processors and this new processor has the capability of communicating with up-host computers through Bluetooth accurately in real-time. This speech signal processing platform provided a low cost, multifunction real-time and efficient solution for cochlear implant speech signal processing, which has highly practical value with spreading meaning.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130220489","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: 2
Novel Robust Pilot Detection Method for Channel Estimation in Single-Carrier Frequency-Domain Equalization Systems 单载波频域均衡系统中信道估计的鲁棒导频检测新方法
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.126
Lu Lu, Hsiao-Chun Wu, Hong Jiang
{"title":"Novel Robust Pilot Detection Method for Channel Estimation in Single-Carrier Frequency-Domain Equalization Systems","authors":"Lu Lu, Hsiao-Chun Wu, Hong Jiang","doi":"10.1109/CMC.2011.126","DOIUrl":"https://doi.org/10.1109/CMC.2011.126","url":null,"abstract":"In this paper, the frequency-domain pilot multiplexing techniques (FDPMTs) for the channel estimation in single-carrier frequency-domain equalization (SC-FDE) systems are studied. A simple but effective pilot-position estimation technique is proposed. The rigorous theoretical analysis and the Monte Carlo simulation results both show that our proposed method is more robust than other existing methods over multipath fading channels, especially when the signal-to-noise ratio (SNR) is low.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121274891","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
An Improved Game-theoretic Spectrum Sharing in Cognitive Radio Systems 认知无线电系统中改进的博弈论频谱共享
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.27
Liang Ma, Qi Zhu
{"title":"An Improved Game-theoretic Spectrum Sharing in Cognitive Radio Systems","authors":"Liang Ma, Qi Zhu","doi":"10.1109/CMC.2011.27","DOIUrl":"https://doi.org/10.1109/CMC.2011.27","url":null,"abstract":"In this paper, an improved game-theoretic spectrum sharing algorithm is proposed. Besides considering the available bandwidth, a reliance factor that represents how the primary users would like to lease the free spectrum to secondary users is introduced and the battery capacity of secondary users is taken into account. The simulation results show that the shared spectrum is in direct proportion to the reliance and battery capacity. The existence and uniqueness of Nash equilibrium are proved.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128561231","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: 5
Array Calibration Based on Improved Instrumental Sensors Method 基于改进仪器传感器方法的阵列标定
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.24
Zeyang Dai, Xu Wang, Jian Liu
{"title":"Array Calibration Based on Improved Instrumental Sensors Method","authors":"Zeyang Dai, Xu Wang, Jian Liu","doi":"10.1109/CMC.2011.24","DOIUrl":"https://doi.org/10.1109/CMC.2011.24","url":null,"abstract":"Instrumental Sensors Method (ISM) is an effective algorithm for joint estimation of signal Direction-of-Arrival(DOA) and direction-dependent array errors. However, this algorithm has some disadvantages, such as high computation complexity. In this paper, we propose an enhanced algorithm based on the basic ISM, in which there are two improvements to reduce the computation complexity. First, the improved algorithm combines least square method (LSM) with ISM to estimate signal DOA and direction-dependent array errors. Second, the improved algorithm simplifies matrix calculation when instrumental sensors are just one more than input signals. These two improvements can effectively estimate the signal'sDOA and direction-dependent array errors. The proposed algorithm has the same performance comparing with the basic ISM algorithm, but with the lower computation complexity. The simulation results show that the enhanced algorithm is effective, and it is convenient for the practice.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129233294","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
Broadband Analog Network Coding with Multiple Relays 多中继宽带模拟网络编码
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.100
Weiwei Yang, Yueming Cai, Xiaoning Liu
{"title":"Broadband Analog Network Coding with Multiple Relays","authors":"Weiwei Yang, Yueming Cai, Xiaoning Liu","doi":"10.1109/CMC.2011.100","DOIUrl":"https://doi.org/10.1109/CMC.2011.100","url":null,"abstract":"In this paper, a novel broadband ANC scheme is proposed for non-regenerative two-way relaying system with multiple relays under frequency-selective fading channel. The pair wise error probability is analyzed to investigate the achievable diversity gain. Theoretical analysis and simulation results both confirm that the new scheme can achieve both cooperative and multipath diversity and significantly improve the performance of the existing scheme as well.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117328379","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
Handling Multiple SIMs -- A Framework Based on Software Restructuring Approach 多sim处理——一种基于软件重构方法的框架
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.92
Mariam Nosheen, M. A. Fahiem
{"title":"Handling Multiple SIMs -- A Framework Based on Software Restructuring Approach","authors":"Mariam Nosheen, M. A. Fahiem","doi":"10.1109/CMC.2011.92","DOIUrl":"https://doi.org/10.1109/CMC.2011.92","url":null,"abstract":"With the increase in ever demanding requirements of telecommunications, especially, wireless and mobile communications, the simultaneous access to services of various mobile service providers is very important. The provision of such simultaneous access to services can be made possible by handling multiple subscriber identity modules (SIM) at a time. In this paper, we have proposed a framework to introduce such provisions in different system software of a cellular mobile phone (CMP). The framework is designed after a thorough investigation of two widely adopted system software of CMPs and is adaptable for others, as well. The framework may very conveniently be integrated with different mobile environments. The proposed framework presented in this paper may prove itself a worth mentioning contribution towards the research in the field of wireless and mobile communications.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117210543","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: 5
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