Fragility issues of medical video streaming over 802.11 e-WLAN m-health environments

Abstract-This paper presents some of the fragility issues of a medical video streaming over 802.11e-WLAN in m-health applications. In particular, we present a Medical ChannelAdaptive Fair Allocation (MCAFA)scheme for enhanced QoS support for IEEE 802.11 (WLAN), as a modification for the standard 802.11e Enhanced Distributed Coordination Function (EDCF) is proposed for enhanced medical data performance. The Medical Channel-Adaptive Fair Allocation (MCAFA) proposed extends the EDCF, by halving the contention window (CW) after ζ consecutive successful transmissions to reduce the collision probability when channel is busy. Simulation results show that MCAFA outperforms EDCF in-terms of overall performance relevant to the requirements of high throughput of medical data and video streaming traffic in 3G/WLAN wireless environments