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FD MAC Protocol Design for Co-Existing WLANs in 5G Cellular Networks

Authors :
S. Diakite
F. M. Rizo
S. Y. M. Bandiri
Source :
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, Vol 20, Iss 1, Pp 30-59 (2021)
Publication Year :
2021
Publisher :
Sociedade Brasileira de Microondas e Optoeletrônica; Sociedade Brasileira de Eletromagnetismo, 2021.

Abstract

Abstract In this paper, we design full-duplex (FD) medium access control (MAC) protocol for co-existing wireless local area networks (WLANs) in 5G cellular networks (WCFD-MAC). Our design considers some significant features of 5G networks, exceptionally, beamforming and FD capabilities at both, the base station and user equipment. FD communications may generate interferences, namely self-interference (SI) in bidirectional FD (BFD) and inter-user interferences in three-node FD (TNFD). Several efforts have been performed to mitigate the SI in BFD communications. However, the inter-user interferences in TNFD are still considered as a major drawback in FD networks. These interferences must be mitigated by an efficient MAC protocol design. WCFD-MAC protocol allows two neighboring users to simultaneously participate in TNFD communication without interfering with each other by using directional transmission and a three-node angle condition (TAC). Directional transmission combined with TAC increases system throughput. WCFD-MAC protocol allows a new half-duplex (HD) communication scheme referred to as three-node HD (TNHD). This scheme may occur when bidirectional FD (BFD) and TNFD communications cannot occur. TNHD scheme includes device-to-device (D2D) communication and allows energy efficiency, which is one of the keys requirements of 5G wireless networks. Simulations results show that WCFD-MAC protocol achieves higher throughput than existing works in the literature.

Details

Language :
English
ISSN :
21791074
Volume :
20
Issue :
1
Database :
Directory of Open Access Journals
Journal :
Journal of Microwaves, Optoelectronics and Electromagnetic Applications
Publication Type :
Academic Journal
Accession number :
edsdoj.01b8b61eb9de42b287edd5afaf9ec222
Document Type :
article
Full Text :
https://doi.org/10.1590/2179-10742021v20i1915