TY - JOUR
T1 - A High-Throughput Full-Duplex MAC Protocol Design and Analysis for Asymmetric Traffic Networks
AU - Zhang, Xinyuan
AU - Du, Changhao
AU - Xing, Zhifang
AU - Zhang, Zhongshan
N1 - Publisher Copyright:
© 2002-2012 IEEE.
PY - 2026
Y1 - 2026
N2 - In recent years, in-band full duplex (IBFD) has garnered significant attention in wireless communications due to its potential to enhance spectral efficiency. To fully exploit the benefits of IBFD, we design a novel medium access control (MAC) protocol for wireless local area networks (WLANs), which takes into account the realities of asymmetric traffic. However, key challenges involve inter-station interference within asymmetric topologies and wastage of idle time slots under asymmetric traffic conditions. We propose a successive full-duplex communication (SFD) protocol, integrating a CSMA/CA-based uplink selection mechanism and a weight-based downlink selection algorithm to minimize interference probabilities. Furthermore, SFD incorporates a control frame structure, power control algorithm, and successive interference cancellation (SuIC) technique to address the challenge of control frame interference in continuous IBFD communication. Both theoretical analysis and experimental evaluations demonstrate that SFD achieves a 52% increase in throughput compared to the 802.11 Distributed Coordination Function (DCF) with Request to Send/Clear to Send (RTS/CTS) and a 25% improvement over A-Duplex.
AB - In recent years, in-band full duplex (IBFD) has garnered significant attention in wireless communications due to its potential to enhance spectral efficiency. To fully exploit the benefits of IBFD, we design a novel medium access control (MAC) protocol for wireless local area networks (WLANs), which takes into account the realities of asymmetric traffic. However, key challenges involve inter-station interference within asymmetric topologies and wastage of idle time slots under asymmetric traffic conditions. We propose a successive full-duplex communication (SFD) protocol, integrating a CSMA/CA-based uplink selection mechanism and a weight-based downlink selection algorithm to minimize interference probabilities. Furthermore, SFD incorporates a control frame structure, power control algorithm, and successive interference cancellation (SuIC) technique to address the challenge of control frame interference in continuous IBFD communication. Both theoretical analysis and experimental evaluations demonstrate that SFD achieves a 52% increase in throughput compared to the 802.11 Distributed Coordination Function (DCF) with Request to Send/Clear to Send (RTS/CTS) and a 25% improvement over A-Duplex.
KW - Wireless local networks
KW - asymmetric traffic
KW - in-band full-duplex
KW - medium access control
UR - https://www.scopus.com/pages/publications/105030018544
U2 - 10.1109/TWC.2026.3661509
DO - 10.1109/TWC.2026.3661509
M3 - Article
AN - SCOPUS:105030018544
SN - 1536-1276
VL - 25
SP - 11723
EP - 11737
JO - IEEE Transactions on Wireless Communications
JF - IEEE Transactions on Wireless Communications
ER -