Objectives: To develop an energy-efficient routing protocol for Mobile Ad Hoc Network (MANET). Methods: The research work includes the Bee Colony Optimization (BCO) technique for evolving energy efficient routing algorithm. The Intelligent Cross-Layer approach based Bee Routing (ICLBR) is inspired by BCO in order to discover the optimal path for data transmission. The ICLBR Intelligent Cross Layer Approach based Bee Routing algorithm is used to overcome the congestion problem, link failure and

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... nergy loss using cross layer approach. The effectiveness of the route has been evolved with the parameter of node degree and connectivity ratio. Findings: This paper proposes an ICLBR algorithm to discover the energy efficient route in order to increase the network lifetime for MANET. The ICLBR is experimented in NS2.34, to systematically validate the routing algorithm. The experimental results show that the ICLBR improves the packet delivery ratio by 9.08% and minimizes the average end-to-end delay is by 5.16% over the Ad hoc On-Demand Distance Vector (AODV) routing protocol. Improvement: The proposed ICLBR mechanism able to enhance the network resource and also improves the network lifetime as compared to the state-of-art works.