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

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An Improved Rate Matching Algorithm for 3GPP LTE Turbo Code 一种改进的3GPP LTE Turbo码速率匹配算法
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.93
Long Yu, Xu Wang, Jian Liu
{"title":"An Improved Rate Matching Algorithm for 3GPP LTE Turbo Code","authors":"Long Yu, Xu Wang, Jian Liu","doi":"10.1109/CMC.2011.93","DOIUrl":"https://doi.org/10.1109/CMC.2011.93","url":null,"abstract":"Long Term Evolution (LTE) describes the standardization work by the Third Generation Partnership Project (3GPP) to define a new high-speed radio access method for mobile communications systems. Rate Matching (RM) is an essential component in the adaptive coding rate system and has a great impact on the error correcting performance in turbo code system for 3GPP LTE. In this paper, we propose an efficient RM algorithm based on the circular buffer and interlaced puncturing applying to the 3GPP LTE system. More specifically, both system-parity cross output model of turbo code and puncturing parity bits preferentially pattern in the bit collection and puncturing process are introduced to obtain more stable performance in this RM algorithm. The simulation results indicate that the proposed algorithm can effectively improve the bit error ratio (BER) performance, especially at high code rate conditions, compared with traditional algorithm in LTE turbo code.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"1 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":"125061213","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: 12
A Novel Iterative Equalization Algorithm Based on Signal Reconstruction for TDS-OFDM/ZP-OFDM Systems over Large Delay-Spread Channels 基于信号重构的大延迟扩频TDS-OFDM/ZP-OFDM系统迭代均衡算法
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.60
Ching-Sheng Ni, Yao-nan Lee, Shin-Shiuan Cheng
{"title":"A Novel Iterative Equalization Algorithm Based on Signal Reconstruction for TDS-OFDM/ZP-OFDM Systems over Large Delay-Spread Channels","authors":"Ching-Sheng Ni, Yao-nan Lee, Shin-Shiuan Cheng","doi":"10.1109/CMC.2011.60","DOIUrl":"https://doi.org/10.1109/CMC.2011.60","url":null,"abstract":"In this paper, we propose an iterative equalization algorithm for the TDS-OFDM/ZP-OFDM system to mitigate the inter-symbol interference (ISI) incurred by channels with large delay spread. The time-domain signal components polluted by the ISI are replaced with the reconstructed ones, which are generated from the the channel impulse response and the data symbols detected in the latest iteration. Then the so-constructed time-domain synthesized signal is demodulated again. The same procedure is repeated until performance saturates. Significant performance improvement is demonstrated through system simulations, which confirm the effectiveness of the proposed algorithm in combating ISI.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"1 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":"129830583","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
Application of Data Mining for Enterprise Digital Marketing Strategy Making 数据挖掘在企业数字营销策略制定中的应用
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.29
K. Yan, Shu-Chin Wang, Shun-Sheng Wang, Yi-Ping Lin
{"title":"Application of Data Mining for Enterprise Digital Marketing Strategy Making","authors":"K. Yan, Shu-Chin Wang, Shun-Sheng Wang, Yi-Ping Lin","doi":"10.1109/CMC.2011.29","DOIUrl":"https://doi.org/10.1109/CMC.2011.29","url":null,"abstract":"With the popularity of broadband Internet and the booming development of network technology in recent years, the traditional marketing is also gradually moving to digital marketing. The dissemination of information through the internet is different from traditional marketing. In today's competitive market, there are various products made by enterprises, how to stand out in a highly competitive environment, and how to go with marketing tactics and product through the product advertising to cause high degree of customer purchase intentions and interests effectively, is one of the important keys. Furthermore, due to the international business environment and intense competition, it is necessary to response and satisfies market and customer demand immediately, and use information technology to assist enterprises in doing business marketing. Therefore, in order to grasp market characteristics and consumer preferences to select the appropriate products marketing strategies. In this study, the structure of digital marketing is proposed aims to provide the enterprise relevant marketing information, to identify appropriate marketing practices of market segment, and thus to achieve the majority of the responses or purchase intention in marketing effectiveness.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"36 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":"121351701","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
SK-OFDM Robust to Frequency Selective Fading Channel with Spectral Nulls SK-OFDM对具有频谱零值的频率选择性衰落信道的鲁棒性
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.120
Bo Qin, Shenmin Zhang, Xiaokang Lin
{"title":"SK-OFDM Robust to Frequency Selective Fading Channel with Spectral Nulls","authors":"Bo Qin, Shenmin Zhang, Xiaokang Lin","doi":"10.1109/CMC.2011.120","DOIUrl":"https://doi.org/10.1109/CMC.2011.120","url":null,"abstract":"In this paper, we proposed a novel SK-OFDM scheme which has a good tolerance of deep fading channels, such as vehicular communication channels. By introducing the idea of spectral keying into OFDM scheme, the system has a better chance to recover the sub carriers with deep fading. We investigate the performance of proposed scheme over channel with spectral nulls and show how SK-OFDM gets advantage comparing to the conventional OFDM. The result of system simulation is in accordance with theoretical analysis.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"201 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":"122415807","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
Understanding the Impact of Removing TCP Binary Exponential Backoff in Data Centers 理解在数据中心中移除TCP二进制指数回退的影响
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.85
Hongyun Zheng, Changjia Chen, C. Qiao
{"title":"Understanding the Impact of Removing TCP Binary Exponential Backoff in Data Centers","authors":"Hongyun Zheng, Changjia Chen, C. Qiao","doi":"10.1109/CMC.2011.85","DOIUrl":"https://doi.org/10.1109/CMC.2011.85","url":null,"abstract":"TCP Timeouts are the primary impairment that hurts throughput in data centers. Binary Exponential Back off (BEB) algorithm is invoked to control interval between consecutive timeouts. In this paper we explore the impact of removing BEB algorithm from TCP on throughput. Our analysis and simulation results show that removing BEB algorithm, even in the case of lower RTT_min, cannot advance the onset of in cast collapse, when increasing SRU size it can noticeably benefit from removing BEB.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"974 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":"123077721","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: 9
Equalization Analysis for OOK IR-UWB Using Energy Detector Receiver 利用能量探测器接收机的OOK IR-UWB均衡分析
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.131
Juchang Li, Jinguo Quan, Shenmin Zhang, Xiaokang Lin
{"title":"Equalization Analysis for OOK IR-UWB Using Energy Detector Receiver","authors":"Juchang Li, Jinguo Quan, Shenmin Zhang, Xiaokang Lin","doi":"10.1109/CMC.2011.131","DOIUrl":"https://doi.org/10.1109/CMC.2011.131","url":null,"abstract":"Considering ISI brought by high transmission rate in short-range IR-UWB, this paper proposes innovative low-complexity equalization for high data rate on-off keying IR-UWB energy detection (ED) receiver capable of eliminating ISI. We propose second-order Volterra model equalizer to eliminate ISI, and innovative approximate improved linear equalizer which has low complexity. The simulation results show that the performance of linear equalizer approximate the performance of non-linear second-order Volterra equalizer, and linear equalizer low complexity, fast convergence, make it very suitable for high data rate OOK-ED-IR-UWB practical application.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"16 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":"126754373","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 and Realization on Building a Network Management System Based on J2EE and RIA Technology 基于J2EE和RIA技术构建网络管理系统的研究与实现
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.70
Xu Hao, Gao Donghuai, Xu Weizhong, Zhang Yi
{"title":"Research and Realization on Building a Network Management System Based on J2EE and RIA Technology","authors":"Xu Hao, Gao Donghuai, Xu Weizhong, Zhang Yi","doi":"10.1109/CMC.2011.70","DOIUrl":"https://doi.org/10.1109/CMC.2011.70","url":null,"abstract":"This article analyzes network management system based on C/S and B/S architecture. Incorporating with advantages of two types of architecture, a design idea is brought up for building a network management system based on J2EE and RIA technology. Major common functions for network management system are designed and realized through research and analysis of data transmission mechanism among each layer under new architecture, which improve such imperfect aspects of existing network management system related to deployment and operation etc. Feasibility and superiority of a network management system based on J2EE and RIA technology is fully demonstrated.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"186 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114009452","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
Chip Design of an UWB, High Gain and Low Noise Amplifier for Wireless Applications 一种用于无线应用的超宽带高增益低噪声放大器的芯片设计
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.83
Jhin-Fang Huang, Ming-Chun Hsu, J. Wen, Ron-Yi Liu
{"title":"Chip Design of an UWB, High Gain and Low Noise Amplifier for Wireless Applications","authors":"Jhin-Fang Huang, Ming-Chun Hsu, J. Wen, Ron-Yi Liu","doi":"10.1109/CMC.2011.83","DOIUrl":"https://doi.org/10.1109/CMC.2011.83","url":null,"abstract":"An ultra-wideband (UWB), high gain and low-noise amplifier (LNA) for wireless applications is presented in this paper. Operating at the frequency band of 0.8-6.0 GHz and fabricated in TSMC 0.18-um technology, the measured results show the gain of 17-19 dB, the noise figure (NF) less than 4.8 dB, the input third-order intercept point (IIP3) of -17 dBm, the reverse isolation less than -25 dB and the power dissipation of 43.2 mW at 1.8 V voltage supply. The chip area including pads is only 1.027mm2.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"35 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":"114075760","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
A Reconfigurable SoC for Block Ciphers with a Programmable Dataflow Structure 具有可编程数据流结构的块密码的可重构SoC
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.55
Ming Yan, Ziyu Yang, Sikun Li, Liu Yang
{"title":"A Reconfigurable SoC for Block Ciphers with a Programmable Dataflow Structure","authors":"Ming Yan, Ziyu Yang, Sikun Li, Liu Yang","doi":"10.1109/CMC.2011.55","DOIUrl":"https://doi.org/10.1109/CMC.2011.55","url":null,"abstract":"Reconfigurable architecture is considered as very efficient, attack resistant and suitable for cryptograph applications. But the low utilize ratio of on-chip resources and lack of software programmability of traditional reconfigurable arrays draws the advantages back. In this paper, we proposed a reconfigurable SoC with a programmable dataflow structure which consists of multiple configurable pipelines specially designed for symmetric-key block ciphersfootnote{Supported by National Science Foundation of China, grant No. 90707003 and 61076020}. With this new architecture, we achieved high resource usability and free software programmability at the same time. We demonstrated the reconfigurable architecture through several block ciphers with a set of countermeasures, such as performance, area and programmability, and compared it with some state-of-the-art designs.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"31 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":"121623711","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
Power Allocation for OFDM-DF Cooperative Communication OFDM-DF协同通信的功率分配
2011 Third International Conference on Communications and Mobile Computing Pub Date : 2011-04-18 DOI: 10.1109/CMC.2011.33
Yueyun Chen, Xining Hu, Z. Tan
{"title":"Power Allocation for OFDM-DF Cooperative Communication","authors":"Yueyun Chen, Xining Hu, Z. Tan","doi":"10.1109/CMC.2011.33","DOIUrl":"https://doi.org/10.1109/CMC.2011.33","url":null,"abstract":"A minimized power allocation scheme in a cooperative communication manner is studied to low power consumption and extent service life for transmission nodes. The model of the minimizing transmission power allocation for each sub-carrier of source node and relay node is not a convex problem, so it is difficult to find the global optimal solution. A new scheme of Decode-and-Forward Power Allocation (OFDM-DF-PA) is proposed. First, the power is allocated between source and relay node after sub-carrier is allocated under a given transmission power for each sub-carrier. Second, the power of each sub-carrier is allocated individually in source and relay node. Then, three different schemes of Non-cooperative Power Allcation (NPA), Equal Power Allocation (EPA) and OFDM-DF Power Allocation are compared. Simulation results show that OFDM-DF-PA consumes less power than the EPA and the NPA under the same BER performance in cooperative OFDM system with Frequency Reuse Factor of 1.","PeriodicalId":263741,"journal":{"name":"2011 Third International Conference on Communications and Mobile Computing","volume":"22 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":"121859553","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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