Full-Duplex MAC Protocol for CSMA/CA-Based Single-Hop Wireless Networks
1
Information and Communications College, National University of Defense Technology (NUDT), Xi’an 710106, China
2
National Mobile Communications Research Laboratory, Southeast University, Nanjing 210007, China
3
State key Laboratory Services Networks, Xidian University, Xi’an 710071, China
*
Author to whom correspondence should be addressed.
Sensors 2019, 19(10), 2413; https://doi.org/10.3390/s19102413
Received: 21 March 2019
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Revised: 16 May 2019
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Accepted: 22 May 2019
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Published: 27 May 2019
(This article belongs to the Section Sensor Networks)
Full-duplex (FD) communication provides new opportunities for improving the throughputs of networks. However, this condition means that the number of senders increases from one to two within a certain range. We have to arrange the two nodes to send frames simultaneously in the media access control (MAC) layer. For the single-hop network model, using the FD features of the nodes and the cut-through mechanism, we propose an FD MAC protocol. The protocol improves the throughput of the network from the following two aspects. On the one hand, during the transmission of each node, based on the information of the received frame’s header, the protocol can detect collisions in the network, preventing the channel from being ineffectively occupied for a long time. On the other hand, the protocol can provide the FD with as many opportunities as possible for the nodes. According to the working process of the protocol, we modeled the states (“active” and “passive” transmission, back-off) of each node and their transitions to a Markov chain. We solved the “active” transmission probability of the node and further modeled the analytical performance of the protocol. The simulation results showed that the system throughput produced by our protocol was at least twice that of the conventional CSMA/CA protocol used in the half-duplex networks.
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Keywords:
wireless networks; single-hop network model; full-duplex communication; MAC protocol; Markov chain
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MDPI and ACS Style
Song, Y.; Qi, W.; Zhao, W.; Cheng, W. Full-Duplex MAC Protocol for CSMA/CA-Based Single-Hop Wireless Networks. Sensors 2019, 19, 2413. https://doi.org/10.3390/s19102413
AMA Style
Song Y, Qi W, Zhao W, Cheng W. Full-Duplex MAC Protocol for CSMA/CA-Based Single-Hop Wireless Networks. Sensors. 2019; 19(10):2413. https://doi.org/10.3390/s19102413
Chicago/Turabian StyleSong, Yu, Wangdong Qi, Weiwei Zhao, and Wenchi Cheng. 2019. "Full-Duplex MAC Protocol for CSMA/CA-Based Single-Hop Wireless Networks" Sensors 19, no. 10: 2413. https://doi.org/10.3390/s19102413
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