Fairness in multi-hop wireless backhaul networks: a dynamic estimation approach

Abstract

In this work, we consider the problem of fairness for Transit Access Points (TAP) in multi-hop wireless backhaul networks. Existing approaches are not practical due to the requirement for modifications to the MAC layer or queueing operations of TAPs, or it is difficult to measure the effective link capacities between TAPs since this capacity must account for such factors as the MAC layer overhead, the effect of wireless interference, the hidden terminal problem, and multi-rate multi-channel issues. Moreover, some approaches are only suitable for TDMA-based MAC protocols. Therefore, we propose an effective and practical approach with two algorithms to enforce fairness in wireless backhaul networks. We also evaluate the performance of proposed approach via ns-2 simulations.