Abstract
In this article, a novel balanced routing algorithm with a transmission range adjustment (BRATRA) strategy is proposed. Firstly, a balanced routing is formed to cope with the sink connectivity area (SCA) load imbalance problem. With the shortest balanced path, the forwarding amount of paths for the nodes in SCA and all the other intra-layers turn out to be more even. Each node then performs power control which is inversely proportional to the total amount of forwarded packets and determines its transmission radius to attain the even power utilization between inter-layers and thereby prolong the overall network lifetime. Performance evaluation justifies that the balanced routing strategy can reach efficient power consumption in each intra-layer and double the network lifetime as compared to a conventional routing strategy. Moreover, the BRATRA strategy generates the power consumption fairness among nodes, ensuing in a network lifespan ten times larger than that utilizing a conventional strategy.
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