The impact of hidden terminal on WMNet performance

Abstract

Hidden terminal is one of the major effective parameters on wireless networks performance. In order to analyze wireless networks exactly on a mathematical basis, the hidden terminal effect is also needed to investigate. In this paper, it is tried to propose the mathematical model of DCF mode of IEEE 802.11 standard with regarding the hidden terminal effect, and then quantify its impact on network performance. So the M/G/1 queue is used to calculate packet delay and network throughput, in which the collision probability is the main factor of the packet service time, and the collision probability of each packet has been considered as a function of three quantities: the number of neighbors, the neighbors of destination and the weighted number of nodes in second hop neighborhood. After modeling and numerical analysis, the results have been compared with the similar model irrespective of the hidden terminal effect. © 2008 Springer-Verlag.