Minimizing Congestion in Mobile Ad hoc Network Using Adaptive Control Packet Frequency and Data Rate
An effective congestion control algorithm should ensure reliable message delivery, quality of service, and energy optimization. This paper presents a method in which data rate and control packets such as Hello packet interval is selected according to the channel conditions depending on the node mobility and energy consumed by the nodes in transmission. The method enables nodes to adjust their data rate and frequency of their Hello messages depending on the transmission power and current speed of the nodes. The improved protocol detects and reacts to congested parts of the network by using adaptive data rate and Hello packet interval. This helps in reducing congestion and improve throughput. The functionality of the proposed method is tested using the Network simulation tool. The results have been analyzed in various scenarios to evaluate the performance parameters. This mainly improves throughput and reduces end-to-end delay and jitter in high mobility cases. The average queue length is also controlled.
KeywordsCongestion control Hello interval MANET Traffic control Fuzzy logic Adaptive data rate
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