Research of source coding method for power saving

doi:10.3778/j.issn.1002-8331.2010.09.005

Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (9): 13-15.DOI: 10.3778/j.issn.1002-8331.2010.09.005

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Research of source coding method for power saving

YANG Qi，SHI Hao-shan，JIANG Wen

Electronic Information Department，Northwestern Poly-technical University，Xi’an 710072，China

Received:2009-11-20 Revised:2010-01-26 Online:2010-03-21 Published:2010-03-21
Contact: YANG Qi

最小能量优化编码研究

杨奇，史浩山，蒋雯

西北工业大学电子信息学院，西安 710072

通讯作者: 杨奇

Abstract

Abstract: Reducing power consumption is one of the key problems in wireless sensor network systems.This paper introduces a source coding method for power saving in DS-CDMA for WSN based on the model of Markov.Finally，simulation is conducted to verify the method which demonstrates the low BER and high SNR，and optimizes the power consumption.

Key words: Direct Sequence-Code Division Multiple Access（DS-CDMA）, Wireless Sensor Network（WSN）, optimal energy coding, Signal to Noise Ratio（SNR）, Bit Error Rate（BER）

摘要： 能量消耗是无线传感器网络的关键问题之一，将DS-CDMA技术与WSN相结合提出了在马尔可夫信源模型的基础上采用能量优化的信源编码，从而降低能耗。仿真结果表明，能量优化编码可以有效地提高系统的信噪比、降低误码率、优化能量的使用效率。

关键词: 直扩序列码分多址, 无线传感器网络, 能量优化编码, 信噪比, 误码率

CLC Number:

TN911.21

YANG Qi，SHI Hao-shan，JIANG Wen. Research of source coding method for power saving[J]. Computer Engineering and Applications, 2010, 46(9): 13-15.

杨奇，史浩山，蒋雯. 最小能量优化编码研究[J]. 计算机工程与应用, 2010, 46(9): 13-15.

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Research of source coding method for power saving

最小能量优化编码研究

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