Joint Optimization of RU Allocation and C-SR in Multi-AP Coordinated Wi-Fi Systems

TL;DR

An optimization problem for joint RU allocation and C-SR to maximize the throughput of a multi-AP coordinated WiFi system is formulated and a heuristic solution is provided to reduce computational complexity.

Abstract

We formulate an optimization problem for joint RU allocation and C-SR to maximize the throughput of a multi-AP coordinated WiFi system. The optimization problem is found to be a non-linear integer programming problem. We solve the problem for several network scenarios using an optimization tool. The joint design significantly improves throughput compared to a non-coordinated system. To reduce computational complexity, we also provide a heuristic solution to the problem. The proposed heuristic achieves throughput comparable to that of the computationally expensive optimization tool based solution approach.

Figures (5)

• Figure 1: A typical MAPC WiFi system
• Figure 2: Total throughput of the system for different number of STAs.
• Figure 3: Throughput gains for different number of STAs in the system.
• Figure 4: Effect of inter AP distance on throughput gains.
• Figure 5: Effect of the value of maximum transmit power on throughput gains.