TY  - JOUR
T1  - Enhanced Traffic Aware Scheduling Protocol for Variable
Bit Rate Traffic in IEEE 802.11e WLAN
AU - Ilayaraja, V. AU - Venkatesan, R. 
JO  - Asian Journal of Information Technology
VL  - 15
IS  - 19
SP  - 3631
EP  - 3639
PY  - 2016
DA  - 2001/08/19
SN  - 1682-3915
DO  - ajit.2016.3631.3639
UR  - https://makhillpublications.co/view-article.php?doi=ajit.2016.3631.3639
KW  - IEEE 802.11e
KW  -WLAN
KW  -scheduling
KW  -variable bit rate
KW  -queue length
KW  -data rate
AB  - In wireless multimedia transmission, scheduling mechanism needs to be designed in an efficient manner to maintain the traffic stream and enhance the Quality of Service (QoS) for Variable Bit Rate traffic (VBR). In this study, an Enhanced Traffic Aware Scheduling (ETAS) Protocol for VBR Traffic in IEEE 802.11e Wireless Local Area Network (WLAN) is proposed. Here, a queue length notification scheme is used for efficient transmission of queue length and data rate information to QoS Access Point (QAP). Based on the queue length information, Transmission Opportunity (TXOP) is estimated. In case, the data rate is high, overboost scheduling algorithm is used which efficiently deals with traffic stream by transferring excess data to the Enhanced Distributed Channel Access (EDCA). Moreover, to recover the lost TXOP an Unused Time Shifting Scheduling Algorithm is used. Simulation results show that the proposed protocol achieves better bandwidth utilization for VBR traffic with reduced delay.
ER  -