Abstract:

Energy efficiency is a very important issue in designing the topology for a wireless sensor network which greatly affects the lifetime of the networks, since each sensor node is bounded by battery power. An energy-efficient protocol HPDD for clustering was presented to minimum energy consumption in wireless networks. This protocol introduced the notion of head-set into PCDD, and each node of the headset could work as a cluster head to reduce the number the flooding establishment of network topology. Theoretical analysis and simulation showed that the protocol could effetively reduce unecessary enegry consumption in wireless sensor networks and prolong the data transmission, which was more suitable for medium and large networks.
 

Key words: wireless sensor network; energy efficiency; directed diffusion; passive clustering; head-set