Improving goodput in IEEE 802.11 wireless LANs by using variable size and variable rate (VSVR) schemes: Research Articles

Authors:
Song Ci;Hamid Sharif
Affiliations:
CSESP Department, University of Michigan-Flint, Flint, MI 48502, U.S.A.;Department of Computer and Electronics Engineering, University of Nebraska, Nebraska, 68182-0572, U.S.A.
Venue:
Wireless Communications & Mobile Computing
Year:
2005

Citing 0
Cited 3

A cross-layer optimized distributed scheduling algorithm for peer-to-peer video streaming over multi-hop wireless mesh networks

SECON'09 Proceedings of the 6th Annual IEEE communications society conference on Sensor, Mesh and Ad Hoc Communications and Networks
Adaptive rate selection scheme based on intelligent learning algorithm in wireless LANs

ISICA'07 Proceedings of the 2nd international conference on Advances in computation and intelligence
Intelligent rate control for supporting real-time traffic in WLAN mesh networks

Journal of Network and Computer Applications

Quantified Score

Hi-index	0.00

Visualization

Abstract

In IEEE 802.11 wireless LANs, channel quality, network load, as well as the protocol itself are time-varying, limiting the goodput performance improvement in wireless LANs. Therefore, it becomes critical to dynamically adjust parameters of MAC and PHY layers according to variations of channel quality. In this paper, we propose variable frame size and variable data rate schemes for goodput enhancement. We first propose two optimal frame size predictors: a goodput regulator to maintain the committed goodput for non-greedy applications and an optimal frame size predictor for maximizing the goodput for greedy applications. Then, we propose a data rate drafting scheme and develop a variable size and variable rate (VSVR) scheme for further goodput improvement. Our extensive simulation results show that the proposed VSVR algorithm can double the channel goodput of current implementations. Moreover, the proposed scheme can be easily integrated with the current implementations of the wireless LAN MAC protocol. Copyright © 2004 John Wiley & Sons, Ltd.