Performance evaluation of an adaptive PI rate control algorithm for wireless ad-hoc networks

Abstract

Congestion control is an important issue and challenge in both wired and wireless networks. This thesis evaluates the feasibility of implementing an adaptive Proportional and Integral (PI) rate control algorithm for streaming traffic applications in wireless Ad-hoc networks. A performance analysis and a comparison of this adaptive rate controller with TCP New Reno have been conducted. The performance of this congestion controller in different stationary and mobile scenarios is evaluated by means of simulation. The simulation measurements take into consideration the impact of the number of nodes, the number of simultaneous traffic flows, node mobility, as well as the interaction of different routing protocols. The simulation results demonstrate that the adaptive PI rate control algorithm can improve the overall average throughput.