In today's WLANs, scheduling of packet transmissions solely relies on the collision and success a station may experience. To better support traffic differentiation in dense WLANs, in this paper, we propose a distributed reservation mechanism for the Carrier Sense Multiple Access Extended Collision Avoidance (CSMA/ECA) MAC protocol, termed CSMA/ECA-DR, based on which stations can collaboratively achieve higher network performance. In addition, proper Contention Window (CW) will be chosen based on the instantaneously estimated number of active contenders in the network. Simulation results from dense scenarios with traffic differentiation demonstrate that CSMA/ECA-DR can greatly improve the efficiency of WLANs for traffic differentiation even with large numbers of contenders.
@article{arxiv.1806.09582,
title = {Traffic Differentiation in Dense WLANs with CSMA/ECA-DR MAC Protocol},
author = {Seyedmohammad Salehi and Li Li and Chien-Chung Shen and Leonard Cimini and John Graybeal},
journal= {arXiv preprint arXiv:1806.09582},
year = {2018}
}
Comments
This work has been accepted by IEEE VTC 2018 Fall conference