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Most of current routing protocols working on the congestion problem and energy drain in wireless ad hoc networks are affected, because a mobile device has a limited battery and a considerable amount of energy is consumed in wireless interfaces. Many of routing protocols use the shortest path route from source to destination with minimum hop count as optimal route selection. However minimum end to end delay from source to destination may not always achieved through shortest path because of high collision rate and congestion. Here, the authors propose enhancement of end to end delay using multipath routing through cross layer approach that determines the best path selection than shortest path by considering congestion and energy constrains.
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