S^3 LQA: A Link Quality Assessment Metric for WSNs Based on Symbol Error and Received Signal Strength  

S^3 LQA:A Link Quality Assessment Metric for WSNs Based on Symbol Error and Received Signal Strengt

作　　者：Lin-Lan Liu Chao Zang Jian Shu Lin-Xin Zeng Sarah Morrison 

机构地区：[1]Internet of Things Technology Institute,Nanchang Hangkong University [2]School of Information Engineering, Nanchang Hangkong University [3]School of Software,Nanchang Hangkong University [4]Wheaton College

出　　处：《Journal of Harbin Institute of Technology(New Series)》2013年第2期33-39,共7页哈尔滨工业大学学报（英文版）

基　　金：Sponsored by the National Natural Science Foundation of China(Grant No.61262020);Aeronautical Science Foundation of China(Grant No.2010ZC56008 and 2012ZC56006);Key Technology R&D Program of Jiangxi Province(Grant No.2009BGA01000 and 20111BBE50030)

摘　　要：With the rapid evolution of WSNs technology, it is very important to evaluate link quality quickly and accurately, so that the routing protocols can take relevant strategies in time to keep the entire network working steadily and efficiently. However, the issue of layer is still open to research. To tackle this issue, a improving link quality assessment methods on physical novel link quality assessment metric called S3LQA is proposed, which estimates the link quality of wireless sensor networks by CC2420 wireless radio frequency transceiver principles and free space propagation theory. The metric adopts both complete and incomplete packages to improve the evaluation performance effectively based on IEEE802. 15.4 frame format and DSSS-O- QPSK mechanism. The experimental results show that the proposed method can improve energy cost and achieves hatter real-timin nerformance than traditional counting-based （PRR） link aualitv assessment metric.With the rapid evolution of WSNs technology,it is very important to evaluate link quality quickly and accurately,so that the routing protocols can take relevant strategies in time to keep the entire network working steadily and efficiently. However,the issue of improving link quality assessment methods on physical layer is still open to research. To tackle this issue,a novel link quality assessment metric called S 3 LQA is proposed,which estimates the link quality of wireless sensor networks by CC2420 wireless radio frequency transceiver principles and free space propagation theory. The metric adopts both complete and incomplete packages to improve the evaluation performance effectively based on IEEE802. 15. 4 frame format and DSSS-O-QPSK mechanism. The experimental results show that the proposed method can improve energy cost and achieves better real-timing performance than traditional counting-based ( PRR) link quality assessment metric.

关 键 词：wireless sensor networks link quality assessment symbol error received signal strength 

分 类 号：TN91[电子电信—通信与信息系统]