Concurrent transmission MAC protocol for wireless Ad hoc networks

We present a novel concurrent transmission MAC protocol for MANETs which enjoys the simple design of single-channel, single-transceiver and single-transmission power architecture. The proposed protocol inserts additional control gap between the transmission of control packets (RTS/CTS) and DATA packet, which allows a serious of RTS/CTS exchanges to take place before the possible multiple, concurrent data transmissions. To assure these concurrent data transmissions finishing correctly, the collision avoidance information is included in control packets. These information are used by neighboring nodes to determine whether begin their transmissions or not, as in traditional transmission power control schemes. Simulation results show that, compared with IEEE 802.11 significant throughput gain can be obtained by the proposed protocol.