Title: Design and performance analysis of two-stage contention MAC protocol for full-duplex wireless networks

Authors: Yanguo Zhou; Hailin Zhang; Ruirui Chen; Tao Zhou

Addresses: State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an, 710071, China ' State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an, 710071, China ' State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an, 710071, China ' CETC No.38 Research Institute, Hefei, 230088, China

Abstract: Compared with the traditional half-duplex (HD) communications, full-duplex (FD) wireless communications can achieve high spectrum efficiency in the physical-layer. However, the high throughput of the data-link layer is also urgently needed, resorting to the efficient full-duplex medium access control (FD-MAC) protocol. In this paper, we propose the two-stage-contention based medium access control protocol for full-duplex wireless networks (TF-MAC) to optimise the throughput of FD wireless networks. First, we design a request to send (RTS)/full-duplex clear to send (FCTS)/clear to send (CTS) based handshaking mechanism. Then, the FD back-off algorithm is proposed to reduce the collisions for FD transmissions among all nodes. Finally, based on the two-dimensional Markov chain, we derive the closed-form expression for the throughput of FD wireless networks. The simulation results demonstrate the performance of our proposed TF-MAC protocol.

Keywords: full-duplex wireless communications; medium access control protocol; request to send/full-duplex clear to send/clear to send handshaking mechanism; full-duplex back-off algorithm; two-stage-contention.

DOI: 10.1504/IJSNET.2018.089275

International Journal of Sensor Networks, 2018 Vol.26 No.2, pp.115 - 124

Received: 29 May 2017
Accepted: 02 Jun 2017

Published online: 11 Jan 2018 *

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