INTELLIGENT SOLUTION TO CONGESTION CONTROL IN 4G WIRELESS NETWORK USING FUZZY LOGIC TECHNIQUE

Subject Area: COMMUNICATION SYSTEM ENGINEERING

This paper seeks to address the problem of congestion in 4G Wireless Local Area Network (WLAN) using fuzzy logic technique. To achieve this fuzzy logic controller was developed considering key packet data attributes such as backlog factor, packet arrival factor and the probability factor as he fuzzy membership functions. These were used to model a congestion control system which was implemented in a WLAN using fuzzy logic toolbox and Simulink. The result when evaluated with Http data showed that the average throughput on the network is 89% which is very good based on the Nigerian Communication Commission (NCC) requirement for quality of service in 4G network. The latency was also evaluated and the result showed that average delay recorded in the end to end communication process is 75.3ms which is recommended for improvement in further studies. Keywords: WLAN, Congestion, fuzzy logic, 4G Network, NCC, latency, throughput