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Journal of Electrical and Computer Engineering
Volume 2013 (2013), Article ID 891429, 9 pages
http://dx.doi.org/10.1155/2013/891429
Research Article

Energy-Aware Adaptive Cooperative FEC Protocol in MIMO Channel for Wireless Sensor Networks

1School of Computer Science & Engineering, Changshu Institute of Technology, Changshu 215500, China
2Department of Computer Science & Technology, Nanjing University of Technology, Nanjing 211816, China

Received 26 March 2013; Accepted 23 June 2013

Academic Editor: Dharma Agrawal

Copyright © 2013 Yong Jin and Guangwei Bai. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We propose an adaptive cooperative forward error correction (ACFEC) based on energy efficiency combining Reed-Solomon (RS) coder algorithm and multiple input multiple output (MIMO) channel technology with monitoring signal-to-noise ratio (SNR) in wireless sensor networks. First, we propose a new Markov chain model for FEC based on RS codes and derive the expressions for QoS on the basis of this model, which comprise four metrics: throughput, packet error rate, delay, and energy efficiency. Then, we apply RS codes with the MIMO channel technology to the cross-layer design. Numerical and simulation results show that the joint design of MIMO and adaptive cooperative FEC based on RS codes can achieve considerable spectral efficiency gain, real-time performance, reliability, and energy utility.