基于部分支撑集检测的WBAN数据处理机制

doi:10.19678/j.issn.1000-3428.0049648

计算机工程 ›› 2019, Vol. 45 ›› Issue (3): 148-154. doi: 10.19678/j.issn.1000-3428.0049648

基于部分支撑集检测的WBAN数据处理机制

吴大鹏^1,2,肖博文^1,2,闫俊杰^1,2

1.重庆邮电大学通信与信息工程学院,重庆 400065; 2.重庆高校市级光通信与网络重点实验室,重庆 400065

收稿日期:2017-12-11 出版日期:2019-03-15 发布日期:2019-03-15
作者简介:吴大鹏(1979—),男,教授、博士,主研方向为泛在无线网络、无线网络服务质量管理;肖博文,硕士研究生;闫俊杰,博士研究生。
基金资助:
国家自然科学基金(61371097,61271261);重庆市青年科学人才培养计划(CSTC2014KJRC-QNRC40001)。

WBAN Data Processing Mechanism Based on Partial Support Set Detection

WU Dapeng^1,2,XIAO Bowen^1,2,YAN Junjie^1,2

1.College of Communication and Information Engineering,Chongqing University of Posts and Telecommunications, Chongqing 400065,China; 2.Municipal Key Laboratory of Optical Communication and Network,Chongqing 400065,China

Received:2017-12-11 Online:2019-03-15 Published:2019-03-15

摘要/Abstract

摘要：

在利用无线体域网监测生理信号的过程中,直接运用已恢复信号的支撑集会降低网络能量的有效性。为此,提出一种基于部分支撑集检测的数据处理机制。根据信号的多尺度小波系数衰减特征,以迭代支撑集检测的方式求解初始支撑集,结合已恢复信号的支撑集并采取交集运算分离出正确支撑集信息。在此基础上,通过正交多匹配追踪(OMMP)算法恢复数据。仿真结果表明,与OMP、OMMP算法相比,该机制在保证信号恢复质量的同时可以提高数据压缩率。

关键词: 无线体域网, 数据处理, 能效, 压缩感知, 部分支撑集

Abstract:

In the process of monitoring physiological signals by Wireless Body Area Network(WBAN),the support set of recovered signals is directly used to reduce the effectiveness of network energy.To solve this problem,a data processing mechanism based on partial support set detection is proposed.According to the attenuation characteristics of multi-scale wavelet coefficients of signals,the initial support set is solved by iteration support set detection,and then the correct support set information is separated by intersection operation combined with the restored support set of signals.On this basis,the data is recovered by Orthogonal Multi-Matching Pursuit(OMMP) algorithm.Simulation results show that compared with OMP and OMMP algorithm,this mechanism can improve the data compression rate while guaranteeing the quality of signal recovery.

Key words: Wireless Body Area Network(WBAN), data processing, energy efficiency, Compressed Sensing(CS), partial support set

中图分类号:

TP391

吴大鹏,肖博文,闫俊杰. 基于部分支撑集检测的WBAN数据处理机制[J]. 计算机工程, 2019, 45(3): 148-154.

WU Dapeng,XIAO Bowen,YAN Junjie. WBAN Data Processing Mechanism Based on Partial Support Set Detection[J]. Computer Engineering, 2019, 45(3): 148-154.

http://www.ecice06.com/CN/Y2019/V45/I3/148

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