Abstract:The potential of wireless In-Band Full-Duplex (IBFD) in doubling spectral efficiency raises a special issue in channel allocation for Multi-user applications in capacity improvement. This paper presents an analysis on mutual interferences, contention conflicting and allocation constraints for different modes of full-duplex transmission. The maximization number of transmission links is chosen as the objective of multi-user system optimization, and a mathematic programming problem of IBFD channel allocation for three transmission modes, including Bidirectional Full-Duplex (BFD), Full-Duplex Relay (FDR) and the mixed of two is proposed. The exact optimal solutions are researched for two kinds of typical topology to find the capacity improvement of IBFD to Half-Duplex (HD). The results show that BFD multi-user system has an ideal capacity gain 100% in relative to HD, while FDR reveals a wide range of gain with 25% in the lowest. In addition, the gain of one dimensional chain of stations is found significantly superior to that of two-dimensional distribution.
ZHANG Z, LONG K, VASILAKOS A V, et al. Full-duplex wireless communications: challenges, solutions, and future research directions[J]. Proceedings of the IEEE, 2016, 104(7): 1369-1409. doi: 10.1109/JPROC.2015.2497203.
WU Haowei, ZOU Yutao, SUN Chen, et al. A hybrid-duplex MAC protocol for WLAN[J]. Journal of Electronics & Information Technology, 2017, 39(4): 840-846. doi: 10.11999/ JEIT160539.
[3]
MAHMOOD N H, ANSARI I S, BERARDINELLI G, et al. Analysing self interference cancellation in full duplex radios[C]. Wireless Communications and Networking Conference(WCNC), Doha, 2016: 1-6. doi: 10.1109/WCNC. 2016.7564878.
[4]
MASMOUDI A and LE-NGOC T. Self-interference cancellation limits in full-duplex communication systems[C]. Global Communications Conference (GLOBECOM), Washington, 2016: 1-6. doi: 10.1109/GLOCOM.2016. 7842258.
[5]
CHOI J I, JAIN M, SRINIVASAN K, et al. Achieving single channel, full duplex wireless communication[C]. Proceedings of the Sixteenth Annual International Conference on Mobile Computing and Networking, Chicago, 2010: 1-12. doi: 10.1145/1859995.1859997.
[6]
KIM D, LEE H, and HONG D. A survey of in-band full-duplex transmission: From the perspective of PHY and MAC layers[J]. IEEE Communications Surveys & Tutorials, 2015, 17(4): 2017-2046. doi: 10.1109/COMST.2015.2403614.
[7]
THILINA K M, TABASSUM H, HOSSAIN E, et al. Medium access control design for full duplex wireless systems: challenges and approaches[J]. IEEE Communications Magazine, 2015, 53(5): 112-120. doi: 10.1109/MCOM.2015. 7105649.
[8]
SABHARWAL A, SCHNITER P, GUO D, et al. In-band full-duplex wireless: Challenges and opportunities[J]. IEEE Journal on Selected Areas in Communications, 2014, 32(9): 1637-1652. doi: 10.1109/JSAC.2014.2330193.
[9]
QIAO D. Effective capacity of buffer-aided full-duplex relay systems with selection relaying[J]. IEEE Transactions on Communications, 2016, 64(1): 117-129. doi: 10.1109/ TCOMM.2015.2497688.
[10]
WANG Y, XU Y, LI N, et al. Relay selection of full-duplex decode-and-forward relaying over Nakagami-m fading channels[J]. IET Communications, 2016, 10(2): 170-179. doi: 10.1049/iet-com.2015.0524.
[11]
JU H, KIM D, POOR H V, et al. Bi-directional beamforming and its capacity scaling in pairwise two-way communications [J]. IEEE Transactions on Wireless Communications, 2012, 11(1): 346-357. doi: 10.1109/TWC.2011.111611.110970.
[12]
KIM D, PARK S, JU H, et al. Transmission capacity of full- duplex-based two-way ad hoc networks with ARQ protocol[J]. IEEE Transactions on Vehicular Technology, 2014, 63(7): 3167-3183. doi: 10.1109/TVT.2014.2302013.
[13]
JU H, OH E, and HONG D. Catching resource-devouring worms in next generation wireless relay systems: two-way relay and full-duplex relay[J]. IEEE Communications Magazine, 2009, 47(9): 58-65. doi: 10.1109/MCOM.2009. 5277456.
[14]
ALVES H, FRAIDENRAICH G, SOUZA R D, et al. Performance analysis of full duplex and selective and incremental half duplex relaying schemes[C]. 2012 IEEE Wireless Communications and Networking Conference (WCNC), Paris, 2012, 771-775. doi: 10.1109/WCNC.2012. 6214475.
[15]
LIU G, YU F R, JI H, et al. In-band full-duplex relaying: A survey, research issues and challenge[J]. IEEE Communications Surveys & Tutorials, 2015, 17(2): 500-524. doi: 10.1109/COMST.2015.2394324.
[16]
BAI J and SABHARWAL A. Distributed full-duplex via wireless side-channels: bounds and protocols[J]. IEEE Transactions on Wireless Communications, 2013, 12(8): 4162-4173. doi: 10.1109/TWC.2013.071913.122015.
[17]
DAS P and SETH D D. Performance analysis of routing protocols for ad-hoc network in a fading environment[C]. IEEE International Conference on Computational Intelligence and Computing Research (ICCIC), Chennai, 2016: 1-5. doi: 10.1109/ICCIC.2016.7919540.