Abstract
The connectivity of radio frequency (RF) devices is usually limited by their predefined bandwidth. Due to stochastic selection of cluster heads, most wireless sensor networks (WSN) require cluster re-configuration protocols without connection and hop constraints. This paper proposes a connection-constrained real-time power-aware (ccWSN) clustering and routing method for multi-hop WSN with a connection bound for each sensor nodes (SN). Each data packet in the network is given a hop-count denoted as the deadline to arrive at base station (BS). ccWSN also controls the diameter of multi-hop clusters so as to derive appropriate clusters size and increase network lifetime. This static clustering method does not require re-configuration which would entail additional energy consumption and time overhead. For each cluster, a set of backup CHs will be selected and serve the cluster as a CH in turn. Simulations result shows that ccWSN increases network lifetime and improves load balance among SNs and CHs.
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