MAC Protocol Design and Analysis for Full-duplex Wireless Networks using MCST Scheme

Abstract

Wireless full-duplex (FD) transmission is one of the key drivers for improving spectrum utilization and network capacity. Many research studies have examined suppressing the residual self-interference and reducing the co-channel interference from other ongoing transmissions to realize the wireless FD transmission. The trade-off between the interference power and capacity gain still leads to a great challenge in designing the practical FD medium access control (MAC) protocol in the multihop wireless networks. This paper proposes a novel FD MAC protocol with a Mixture of Concurrent and Sequential transmission (MCST) scheme to accomplish a higher throughput by managing the transmissions and optimizing the achievable transmission capacity. Numerical simulations reveal that the proposed FD MAC with MCST scheme can achieve higher average saturation throughput with a reasonable level of average overhead ratio compared to the existing HD MAC and FD MAC protocols.