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Multipath routing mechanisms have been preferred over single path routing to provide parallel fail safe paths and to maximize throughput. Applying traditional shortest path metric for multipath route selection leads to traffic concentration at some nodes resulting in congestion, thereby causing performance degradation. Interference caused due to neighbouring node traffic is another factor that further limits its performance gains. Towards this, to ease out congestion and improve network resource utilization the authors devise a load balancing strategy that splits the load among multiple paths according to link quality. Link quality metric is formulated considering the current load condition, traffic interference and energy of the intermediate nodes.
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