Fairness Improvement of MAC in Wireless Ad Hoc Networks

There are many medium access control (MAC) protocols proposed to achieve fairness in presence of hidden and/or exposed nodes. In [2] a general approach to address the propblem of fairness is proposed. This approach defines a fairness index and the goal is to minimize this fairness index to achieve fairness. in this paper we propose a fairness index by taking into account both node’s data traffic and routed data traffic of the other nodes for each node and we can easily verify that the fairness index defined in this paper is always lower or equal to the fairness index defined in [2].