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On the Performance of DCF in Full Duplex WLANs with Hidden Terminals
Anastasios C · 2026-05-25 · via cs updates on arXiv.org

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Abstract:Full Duplex (FD) technology is considered as one of the next big leap in the evolution of modern WLANs. Allowing a node to simultaneously transmit a data frame while in receive mode, can theoretically double the system throughput. However, several requirements must be fulfilled in order for FD operation to manifest. One obvious prerequisite is that the Medium Access Control (MAC) mechanism must allow two nodes to access the shared medium simultaneously. In modern WLANs the standard MAC layer mechanism is the Distributed Coordination Function (DCF), which is specifically designed to avoid such situations. FD communications may also take place when the physical placement of the communicating parts involves the existence of hidden terminals which, in standard Half Duplex (HD) communications, imposes a significant problem. This paper investigates the performance of the Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) protocol, which constitutes the basis of the DCF mechanism, in FD WLANs with hidden terminals, and compares it with the standard HD case. Our analysis is based on performance modelling. Results indicate that, under the DCF regime, FD technology exhibits an exiguous performance improvement, in terms of saturation throughput, when compared with its half duplex counterpart.
Comments: 7 pages, 7 figures, 2022 IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom)
Subjects: Networking and Internet Architecture (cs.NI)
Cite as: arXiv:2605.23276 [cs.NI]
  (or arXiv:2605.23276v1 [cs.NI] for this version)
  https://doi.org/10.48550/arXiv.2605.23276

arXiv-issued DOI via DataCite (pending registration)

Related DOI: https://doi.org/10.1109/BlackSeaCom54372.2022.9858233

DOI(s) linking to related resources

Submission history

From: Anastasios Politis [view email]
[v1] Fri, 22 May 2026 06:29:59 UTC (1,090 KB)