Title: Performance analysis of the contention-based access periods of the IEEE 802.11ad hybrid MAC based on Pareto arrivals

Authors: R.G. Sangeetha; C. Hemanth; T.G. Venkatesh

Addresses: School of Electronics Engineering, Vellore Institute of Technology, Chennai, 600127, India ' School of Electronics Engineering, Vellore Institute of Technology, Chennai, 600127, India ' Department of Electrical Engineering, Indian Institute of Technology, Madras, Chennai, India

Abstract: IEEE 802.11ad is a wireless LAN standard that operates in the 60 GHz range. In this article, we undertake a simulation-based performance evaluation of the IEEE 802.11ad, hybrid MAC protocol's contention-based access periods (CBAPs) under Pareto arrivals. In this article we evaluate the performance in terms of throughput and average latency. Because of the protocol's hybrid nature, CBAP packet transfers must be deferred when the protocol transitions from CBAP to a contention-free phase. We demonstrate that: 1) deferring packet transmission; 2) the CBAP bandwidth allocation method have a substantial impact on the system performance. We also highlight the difference in performance that is achieved when a heavy-tailed traffic model like Pareto is used as against the traditional Poisson model.

Keywords: hybrid MAC; IEEE 802.11ad; Pareto; throughput; MAC delay; simulation.

DOI: 10.1504/IJAHUC.2025.145199

International Journal of Ad Hoc and Ubiquitous Computing, 2025 Vol.48 No.4, pp.224 - 232

Received: 26 Mar 2024
Accepted: 18 Sep 2024
Published online: 25 Mar 2025 *

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