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2010 International Conference on Communications and Mobile Computing最新文献

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A Network Architecture Model for GEO Satellite Mobile Telecommunication System with Hybrid Onboard Processor 基于混合板载处理器的地球同步轨道卫星移动通信系统网络体系结构模型
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.234
Yuxin Cheng, Jianjun Wu, Yubin Xu, Kun Wang
{"title":"A Network Architecture Model for GEO Satellite Mobile Telecommunication System with Hybrid Onboard Processor","authors":"Yuxin Cheng, Jianjun Wu, Yubin Xu, Kun Wang","doi":"10.1109/CMC.2010.234","DOIUrl":"https://doi.org/10.1109/CMC.2010.234","url":null,"abstract":"A public satellite mobile network (PSMN) will be established in future China. For the limitation of the payload resource, the onboard processor can only work in hybrid mode (transparent plus processing-switching mode). This paper proposes a network architecture model which is suitable to the PSMN with hybrid onboard processor. The proposed model is compatible with 3GPP/UMTS specifications. The onboard processor model, new entities, new interfaces and corresponding protocol models are also described in detail.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"20 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":"122069476","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
Detecting Software Keyloggers with Dendritic Cell Algorithm 树突状细胞算法检测软件键盘记录程序
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.269
Jun Fu, Yiwen Liang, Chengyu Tan, Xiaofei Xiong
{"title":"Detecting Software Keyloggers with Dendritic Cell Algorithm","authors":"Jun Fu, Yiwen Liang, Chengyu Tan, Xiaofei Xiong","doi":"10.1109/CMC.2010.269","DOIUrl":"https://doi.org/10.1109/CMC.2010.269","url":null,"abstract":"As a kind of invisible spyware that records user’s keystrokes, software keyloggers have posed a great threat to user privacy and security. It is difficult to detect keyloggers because they run in a hidden mode. In this paper, an immune-inspired dendritic cell algorithm (DCA) was used to detect the existence of keyloggers on an infected host machine. The basis of the detection is facilitated through the correlation (including the timing relationships) between different behaviors such as keylogging, file access and network communication. The results of the experiments show that it is a successful technique for the detection of keyloggers without responding to normally running programs.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"71 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":"122087665","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: 15
Simple Receiver for Double STTD System 双STTD系统简易接收机
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.216
Rongdao Yu, Tao Wu
{"title":"Simple Receiver for Double STTD System","authors":"Rongdao Yu, Tao Wu","doi":"10.1109/CMC.2010.216","DOIUrl":"https://doi.org/10.1109/CMC.2010.216","url":null,"abstract":"This paper studies the receiver structure of double STTD system with 4×2 antenna configuration. Simple receivers for double STTD are proposed, which requires no matrix inversion or iteration ordering. Simulation results show that the performance loss proposed receiver for double STTD is very small and the computation complexity is very low.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"55 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":"121427917","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
Multipath Channel Measurements and Analysis at UHF Band for LEO Satellites 低轨卫星UHF波段多径信道测量与分析
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.158
Ding Sheng, L. Limin, Liu Huijie
{"title":"Multipath Channel Measurements and Analysis at UHF Band for LEO Satellites","authors":"Ding Sheng, L. Limin, Liu Huijie","doi":"10.1109/CMC.2010.158","DOIUrl":"https://doi.org/10.1109/CMC.2010.158","url":null,"abstract":"A measurement experience for the downlink channel of the low earth orbit (LEO) satellites at UHF band was carried out by utilizing a dedicated simulator which could totally simulate an in-orbit LEO satellite. Results including the spectrum of the received signal, the multipath delay over the chip period, the sub-chip multipath delay and the Ricean K-factor were presented for a wide range of propagation surroundings, such as urban, suburban, open environments. The results can be utilized to optimize the design of the LEO mobile satellite systems, especially the Rake-receiving strategy and the dynamic property of the receiver.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"348 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113958566","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
The Algorithm of Sub-process Discovery for BPEL Process Based on Variable Dependence 基于变量依赖的BPEL流程子流程发现算法
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.271
Deng Min, Deng Na, Peng Yong, Cheng Bo
{"title":"The Algorithm of Sub-process Discovery for BPEL Process Based on Variable Dependence","authors":"Deng Min, Deng Na, Peng Yong, Cheng Bo","doi":"10.1109/CMC.2010.271","DOIUrl":"https://doi.org/10.1109/CMC.2010.271","url":null,"abstract":"The Web Services Business Process Language (BPEL) is widely used in service composition and orchestration, but sometimes it is time consuming and unnecessary to construct a BPEL process from scratch. It absolutely has the need to seek a way to realize the reuse of BPEL sub-processes. This paper advances an algorithm to solve this problem based on mapping process to a multi-tree and variable dependence. At the end of this paper, a BPEL process instance proves this algorithm’s validity.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"217 0 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":"124227056","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
Improvement of Physical-Layer Network Coding Method in Relay Networks 中继网络中物理层网络编码方法的改进
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.10
Guan Ke, Wang Jing
{"title":"Improvement of Physical-Layer Network Coding Method in Relay Networks","authors":"Guan Ke, Wang Jing","doi":"10.1109/CMC.2010.10","DOIUrl":"https://doi.org/10.1109/CMC.2010.10","url":null,"abstract":"Physical-layer network coding (PNC) is a new electromagnetic-wave based network coding scheme proposed recently to enhance network capacity, which deals with two nodes exchanging information through a relay node. In this article, based on Turbo code and M-ary phase-shift keying (MPSK), an improved PNC method is proposed. More specifically, the transmitting information of each node is encoded by Turbo codes and modulated to an MPSK signal, and the sum-signal of any two MPSK signals corresponds to a unique exclusive OR (XOR) value of the two transmitting information bits, which can be modulated to a unique MPSK signal. Considering the noise existing in wireless relay channels, Turbo code is adopted to ensure the correctness of signals. Moreover, we analyze the transmission energy consumption of the proposed scheme. It is shown by simulation that the enhanced PNC method can reduce half transmission energy in the relay node over the original PNC.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"52 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":"125568928","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
Energy Efficient Transmission Distance Adjustment under Non-uniform Distributed Wireless Sensor Networks 非均匀分布式无线传感器网络下的高效传输距离调整
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.110
Tu Dong, Daqiang Zhang, Yao Shen, M. Guo
{"title":"Energy Efficient Transmission Distance Adjustment under Non-uniform Distributed Wireless Sensor Networks","authors":"Tu Dong, Daqiang Zhang, Yao Shen, M. Guo","doi":"10.1109/CMC.2010.110","DOIUrl":"https://doi.org/10.1109/CMC.2010.110","url":null,"abstract":"To prolong the lifespan of wireless sensor networks, while working with the limited battery life of each sensor node, energy efficiency and energy balance are basic considerations. To achieve balanced energy consumption, non-uniform distribution methods are proposed as a network infrastructure modeling scheme. However, node transmission distance, which has significant relevance with energy efficiency, is not factored into calculations. Based on a previous non-uniform distribution method, we analyze energy consumptions under different corona width, and then derive a distribution model with optimal average transmission distance. Results demonstrate an efficiency increase of 24% compared to networks with unadjusted corona widths, and the lifetime of the network is prolonged.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"3 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":"129853158","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 Broadband Phase Shift Power Divider Based on Composite Right/Left Handed Transmission Line 基于复合左/右传输线的宽带移相功率分配器
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.165
W. Cao, Feng Guo, Si-min Li
{"title":"A Broadband Phase Shift Power Divider Based on Composite Right/Left Handed Transmission Line","authors":"W. Cao, Feng Guo, Si-min Li","doi":"10.1109/CMC.2010.165","DOIUrl":"https://doi.org/10.1109/CMC.2010.165","url":null,"abstract":"A compact 1:4 parallel phase shift power divider that provides equal power split to all four output ports and 900 phase difference from port 3/4 to port 2/5 over a large bandwidth is presented, which comprises two composite right/left handed(CRLH) transmission lines(TLs) in transformer, two CRLH TLs in output port 3 and port 4. The proposed CRLH power divider provides wide impedance bandwidth of 76% and phase difference bandwidth of 80%, which compared to the 51.5% and 12% for the conventional power divider with 900 phase difference using delay TLs. Moreover, the divider is significantly more compact, occupying only 20.6% of the conventional power divider occupies. The circuit has been successfully applied in the phased-array antenna.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"595 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":"130040314","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 Improved MPNLMS Algorithm for Echo Cancellation in Digital Video Telephone System 一种改进的MPNLMS数字视频电话系统回波消除算法
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.279
Huan-chang Qin, C. Hou
{"title":"An Improved MPNLMS Algorithm for Echo Cancellation in Digital Video Telephone System","authors":"Huan-chang Qin, C. Hou","doi":"10.1109/CMC.2010.279","DOIUrl":"https://doi.org/10.1109/CMC.2010.279","url":null,"abstract":"In this paper, an improved proportionate normalized least mean square (MPNLMS) algorithm incorporating a data selection strategy based on the set-membership concept is introduced. Proportionate adaptive filters can improve the convergence speed for the identification of sparse systems as compared to their conventional counterparts. Set-membership filtering (SMF) combine a bounded error specification on the adaptive filter with the concept of data-reusing. The resulting algorithms have low average computational complexity because coefficient update is not performed at each iteration. Thereafter, the ideas of the partial-update MPNLMS algorithms found in the literature are incorporated in the framework of set-membership filtering, from which data-selective MPNLMS algorithms with partial-update are derived. The resulting algorithm is flexible in the sense that it allows more general tradeoff between speed of convergence and misadjustment while constraining the overall computational complexity. Simulations show good results in terms of reduced number of updates, speed of convergence, and final meansquared error. Objective tests are made using Composite Source Signals(CSS) according to ITU-T recommendation G.168. The performances meet with G.168 well. o and accurately calculate to-be-detected signal frequency.","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":"130589912","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 Method for Generation of Multiple Uncorrelated Rayleigh Fading Waveforms 一种改进的多不相关瑞利衰落波形生成方法
2010 International Conference on Communications and Mobile Computing Pub Date : 2010-04-12 DOI: 10.1109/CMC.2010.62
Huo Kai, Cui Chen
{"title":"An Improved Method for Generation of Multiple Uncorrelated Rayleigh Fading Waveforms","authors":"Huo Kai, Cui Chen","doi":"10.1109/CMC.2010.62","DOIUrl":"https://doi.org/10.1109/CMC.2010.62","url":null,"abstract":"In this paper, an improved parameter computation method is proposed for generation of multiple uncorrelated Rayleigh fading waveforms. The improved method employs random Doppler frequency wobble for all individual sinusoids based on the original Exact Doppler Spread Method (MEDS), and when the random wobble amplitude is set to be an infinitesimal real value, the autocorrelation (ACF) of inphase (quadrature) components will converge to the ones of reference model exactly. Due to the ACF arithmetic errors of the inphase and quadrature components compensate each other over a determined domain, the ACF of complex waveforms almost the same to the generalized method of MEDS (GMEDS) but with random Doppler frequencies. Simulation results show that the proposed method is useful for the design of simulation models for diversity-combined fading channels, frequency-selective channels, and multiple-input multiple-output (MIMO) channels, moreover, it has close-form and simple expression for model parameters and can be directly used to simulating multiple uncorrelated Rayleigh fading waveforms with low model complexity and low computation costs.","PeriodicalId":296445,"journal":{"name":"2010 International Conference on Communications and Mobile Computing","volume":"25 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":"121969763","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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