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Enhancement of adaptive FEC mechanism for video transmission over 802.11 WLANS


Ghazali, Osman and Harun, Nor Ziadah (2011) Enhancement of adaptive FEC mechanism for video transmission over 802.11 WLANS. In: 3rd International Conference on Computing and Informatics (ICOCI 2011), 8-9 June 2011, Bandung, Indonesia.

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Abstract

Forward Error Correction (FEC) techniques have been adopted with Automatic Repeat reQuest (ARQ) to overcome packet losses and avoid network congestion in various wireless network conditions. The number of FEC packets need to be generated adaptively because usually wireless network has varying network condition.In the current Adaptive FEC mechanism, the FEC packets are determined based on average queue length and average packet retransmission time. However, in order to determine average queue length, estimating its weight value (i.e. smoothing factor) is a challenging task. Smoothing factor is an important parameter as it affects the generation of FEC packets.Thus, this work conducted the estimation of suitable smoothing factor value to determine the average queue length according to packet loss rate over the wireless network.The simulation results show that the enhanced FEC mechanism outperformed other Adaptive FEC mechanisms in terms of recovery efficiency.

Item Type: Conference or Workshop Item (Paper)
Additional Information: ISBN 978-983-2078-49-4 Organized by: UUM College of Arts and Sciences, Universiti Utara Malaysia.
Uncontrolled Keywords: Forward Error Correction (FEC), Automatic Repeat request (ARQ)
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: College of Arts and Sciences
Depositing User: Dr. Osman Ghazali
Date Deposited: 08 Apr 2015 01:13
Last Modified: 08 Apr 2015 01:20
URI: http://repo.uum.edu.my/id/eprint/13662

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