aspg-20-396-1791307521 20261006172521 American Scientific Publishing Group admin@americaspg.com American Scientific Publishing Group International Journal of Wireless and Ad Hoc Communication IJWAC 2692-4056 2020 1 1 M. Ilayaraja Department of Computer Science and Information Technology, Kalasalingam Academy of Research and Education, Krishnankoil, India Mobile adhoc network (MANET) comprises a network of mobile nodes, which communicates with one another through wireless connections. Reliability, energy efficiency, congestion control and interferences are the problems faced with the traditional routing protocols in MANET. Routing defines the process of identifying the optimal paths between two nodes in the network. For resolving these issues, several multipath routing techniques have been presented. This paper assesses the performance of the two bio-inspired multipath routing techniques namely Energy-Aware Multipath Routing Scheme based on particle swarm optimization (EMPSO) and PSO with fitness function (PSO-FF) algorithms. These two algorithms are compared and the results are investigated under several performance measures. The simulation results stated that the PSO-FF algorithm has shown better results over the EMPSO algorithm under several measures. 2020 47 56 396 https://creativecommons.org/licenses/by/4.0/ 10.54216/IJWAC.010105 https://americaspg.com/journal/20/article/396 https://americaspg.com/storage/9771.pdf