Title: A New
buffer and energy based scheduling scheme for supporting QoS in MANETs
Authors: Mohamed Brahma, Abdelhafid Abouaissa, Pascal Lorenz
Abstract: Today, the original IEEE 802.11 standard has several
problems in providing Quality of Service in MANETs. A single FIFO queue is used
in best effort manner and it does not support QoS. The upcoming IEEE 802.11e was
drafted to overcome these drawbacks. In this paper we describe a new multiple
queuing system with an adaptive scheduling taking into account the states of
buffers and energy consumption in a mobile ad hoc network. The proposed
scheduling scheme uses dynamic weights for each queue. We study the performance
of this scheme and compare it with the original IEEE 802.11b and the upcoming
IEEE 802.11e. We show through simulations that the proposed buffer and energy
based scheduling scheme improves overall end-to-end throughput, and gives better
results than the original 802.11b and the Enhanced Distributed Coordination
Function (EDCF), in terms of delay and total received and lost packets, as well
as support service differentiation over multi-hop ad hoc networks.