In-band Full-duplex MAC Protocol for Ad Hoc Networks

Abstract

The demand of ad hoc networks is increasing day by day with the advancement of new technologies and standards for wireless communications. Recent research and developments have enabled in-band full-duplex (IBFD) wireless communications, which can double the network throughput theoretically. Although a significant number of medium access control (MAC) protocols are proposed for wireless local area networks using IBFD techniques, this number is very few for ad hoc networks. This paper proposes an MAC protocol for ad hoc networks using IBFD wireless communications, which is named as Adhoc-FDMAC. Here, an ad hoc network model is proposed for which the MAC protocol is designed. The proposed protocol modifies a number of control frames in IEEE 802.11 distributed coordination function (DCF) MAC standard. Here, the detailed time sequence is shown for the data transmission and routing. The computer simulation is performed to evaluate the performance of this MAC protocol. It shows that the achieved throughput in Adhoc-FDMAC is about 51 Mbps and 41 Mbps for 5 nodes and 50 nodes respectively, which is much better than that of traditional MAC protocols for ad hoc networks. Moreover, this MAC protocol requires less time for routing as compared to the traditional ad hoc on-demand distance vector (AODV) routing. We have calculated the time that is required for data to reach the monitoring station from a node placed at three hops distance. It shows that it requires 33.33% less time comparing to that in traditional AODV.