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A Bundled Aggregation Scheme for Distributed Source Coding in Wireless Sensor Networks
Author: GaoWa
Tutor: ZhangHuiMin
School: Beijing University of Posts and Telecommunications
Course: Signal and Information Processing
Keywords: Distributed source coding Wireless sensor networks Reliability Validity Bundled aggregation
CLC: TN92
Type: Master's thesis
Year: 2010
Downloads: 44
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Abstract
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Since the new century , the wireless communication system to support multimedia services has become an inevitable trend . Realization of wireless communication , however , is bound to solve two major problems , one is the efficient compression of the source and make full use of the limited bandwidth of wireless channel , high validity ; Second error protection is compressed to high reliability resistance to transmit data packets , to fight channel or network error or data loss . Distributed source coding due to data compression with higher energy efficiency , and extensive research applications to take advantage of the spatial and temporal correlation . On the basis of in-depth study of source coding theory , this paper studies the distributed source coding problem in wireless sensor network application environment that is able to obtain high effectiveness of traditional distributed source coding , while improving coding efficiency, reduce the complexity of the encoder source coding strategy . On this basis , in-depth study of the wireless sensor network simulation system in the three main mechanisms of distributed source coding , their validity and reliability is given by theoretical analysis and simulation experiments . In addition, the present study also examined the high reliability of the packet aggregation of the coordinated multi-point manner , for the poor quality of the connection of the radio channel under the conditions of distributed source coding problem . On this basis , the combination of multi polymerization with distributed source coding problem , bundled aggregation program , guarantee the validity of the basis to improve the reliability of the transmission , wireless sensor networks distributed source the encoding has done the expanded research . Bundled aggregation scheme , to a certain extent, meet the validity and reliability requirements of the data transmission to the wireless sensor network . Moreover, since the bundled the polymerization can set the size of the polymerization beam polymerization schemes than the single type , having a certain flexibility . The excellent performance of the program proved multiple nodes collaborate with applications in wireless sensor network superiority , and guidelines for the direction of our next task .
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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications
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