Dual-Zone Hard-Core Model for RTS/CTS Handshake Analysis in WLANs

TL;DR

This paper presents a novel stochastic geometry model called the dual-zone hard-core process to analyze the RTS/CTS handshake in WLANs, offering improved insights into interference and success probability.

Contribution

It introduces the dual-zone hard-core point process model that captures spatial interactions due to RTS/CTS, extending traditional models for better WLAN analysis.

Findings

Provides analytical expressions for interference and success probability.

Offers improved estimates of interference levels in WLANs.

Enhances understanding of RTS/CTS impact on network performance.

Abstract

This paper introduces a new stochastic geometry-based model to analyze the Request-to-Send/Clear-to-Send (RTS/CTS) handshake mechanism in wireless local area networks (WLANs). We develop an advanced hard-core point process model, termed the dual-zone hard-core process (DZHCP), which extends traditional hard-core models to capture the spatial interactions and exclusion effects introduced by the RTS/CTS mechanism. This model integrates key parameters accounting for the thinning effects imposed by RTS/CTS, enabling a refined characterization of active transmitters in the network. Analytical expressions are derived for the intensity of the DZHCP, the mean interference, and an approximation of the success probability, providing insight into how network performance depends on critical design parameters. Our results provide better estimates of interference levels and success probability, which could inform strategies for better interference management and improved performance in future WLAN designs.