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A Study of Data Transmission Based on Coding Strategies in Wireless Netwoks

Author: ZhaoYao
Tutor: XueXiangYang
School: Fudan University
Course: Applied Computer Technology
Keywords: Wireless sensor networks Wireless two-way relay Growth Codes Rate Control
CLC: TN929.5
Type: Master's thesis
Year: 2011
Downloads: 34
Quote: 0
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Abstract


The data transmission must focus on the basic functions of various types of wireless networks . In this paper , we focus on two types of wireless networks - wireless sensor networks and wireless two-way relay network - based wireless data transmission encoding . Wireless network data transmission factors to consider throughput adaptability , rate control , and many other factors . Through the Growth Codes optimization can be used to increase the data throughput of wireless sensor networks and adaptive rate control in wireless two-way relay network can be used to complete the by denoising forwarding and constellation . The traditional Growth Codes design is based on two basic assumptions : ( 1) data packet transmission unit and data acquisition unit is the same size as a packet ; (2) all the packets have the same probability Sink node receives . In this paper , we relax the limitations of these two assumptions , a more fine-grained coding using priority-based broadcast , improves the data transfer throughput . For wireless sensor networks is arranged in the region 's long-running , mankind difficult to close , the node is likely to fail , this paper, based encoding the CAP algorithm selection of the most suitable coding opportunity and the most appropriate mode of transmission , data transmission adaptive capacity . For data transmission in a wireless two-way relay network , how to determine the transmission rate of the source node is an important and challenging problem . In this paper , we will extend the point - to - point communication channel constellation diagram - based rate control algorithm to the wireless two-way relay network ; improve the accuracy of the data transmission rate control .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Mobile Communications
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