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Analyzing the Optimum Switching Points for Adaptive FEC in Wireless Networks with Rayleigh Fading

Authors:
Moise Bandiri
Jose Brito

Keywords: adaptive FEC; performance analysis; optimum switching points.

Abstract:
Adaptive techniques have an important role in modern wireless communications networks, like cognitive radio networks. Adaptive modulation and adaptive Forward Error Correction (FEC) are two very important approaches used to improve the performance of the wireless networks. In an adaptive technique, a key factor to maximize the performance of the system is the optimum switching point between neighboring modulations, in an adaptive modulation system, or codes, in an adaptive FEC system. In this paper, we analyze the optimum switching points for adaptive FEC in a wireless network with Rayleigh fading. We compute the optimum switching points considering three criteria: maximum throughput, maximum packet error rate target and delay to transmit a correct packet. We show that the optimum switching points depend on several parameters, including the channel model and the selected criterion to define the switching points.

Pages: 23 to 28

Copyright: Copyright (c) IARIA, 2015

Publication date: April 19, 2015

Published in: conference

ISSN: 2308-4413

ISBN: 978-1-61208-398-8

Location: Barcelona, Spain

Dates: from April 19, 2015 to April 24, 2015