Inter-AP Communication Protocol based Frequency Assignment in IEEE 802.11 WLAN
Babul P. Tewari, Sasthi C. Ghosh · 2021
In IEEE 802. 11 wireless local area network (WLAN), dense deployment of access points (APs) often increases co-channel interference. This paper addresses an inter-hP communication protocol (IACP) based frequency assignment for dense WLAN. With the help of existing wired backbone the proposed approach considers a suitable IACP to design a new frequency assignment metric for the APs. The objective is to maximize the aggregate throughput of the network while avoiding the co-channel interference. The metric jointly considers the inter-AP communication delay and the obtained aggregate throughput while assigning a frequency to an AP. We first design a model describing the required parameters and protocol service primitives and then mathematically formulate the problem. As the problem is hard to solve, we have proposed a suitable greedy algorithm for the same. The proposed approach is simulated considering different network parameters and superiority of it over an existing approach is also established.