A fragment-based retransmission scheme with QoS considerations for wireless networks.
Journal
Proceedings of the International Conference on Wireless Communications and Mobile Computing, IWCMC 2007, Honolulu, Hawaii, USA, August 12-16, 2007
Pages
225-230
Date Issued
2007
Author(s)
Abstract
In order to satisfy QoS requirements for real-time multimedia applications over wireless networks, IEEE 802.11e has been proposed to enhance wireless-access functionalities. However, as system load is heavy, collisions occur most often and then the time needed for successfully transmitting data is lengthened seriously due to contention, handshaking, and long backoff processes for collision avoidance. It is important to keep QoS requirements satisfied. Therefore, we propose a fragment-based retransmission (FBR) scheme with QoS considerations for IEEE 802.11 wireless local area networks (WLAN). By utilizing IEEE 802.11e with FBR, the retransmission delay will be improved to conform strict time requirements for real-time multimedia applications. The capability of the proposed scheme is evaluated by a series of experiments, for which we have encouraging results.
Type
conference paper