A Study on Hidden Receiver Problem in Mobile Ad Hoc Networks

The hidden receiver problem is the primary concern in mobile ad hoc networks (MANET), due to the high rates of neglecting the state of the hidden terminal; the potential sender (neighbors of the hidden terminal) enters into an unnecessary backoff process and retransmission circle, therefore leading to serious unfairness between contention terminals. Hidden receiver problem increases the probability of collision and interference, hence, degrading the performance of network throughput significantly. In this paper, we proposed two improved schemes with an additional procedure which can be adapted to IEEE 802.11 Distributed Coordination Function (DCF) and Explicit Blocking Notification (EBN) schemes. Simulation results have shown that our proposed schemes not only achieve better fairness between competing traffics but also greatly improves system throughput.