High Throughput Reliable Wireless Multihop Transmissions in MANET

In mobile wireless ad-hoc networks, data messages are forwarded by each intermediate node through a wireless communication link which is less reliable than a wired communication link. For achieving reliable data message transmissions, two main methods have been proposed; BEC (Backward Error Correction) with conditional retransmissions of data messages and FEC (Forward Error Correction) with unconditional repeated transmissions of data messages. Since the performance of these methods depends on characteristics of the wireless ad-hoc networks, this paper proposes a selection method of a reliable message transmission method based on reduction of data message reception opportunities in neighbor nodes. Results of simulation experiments show that the proposed selection method achieves 6.20% and 6.66% higher throughput of data message transmissions than the conventional BEC and FEC methods, respectively.