Abstract:A wireless sensor network integrates sensor, micro-elector-mechanism system and communication networks. More and more academic researchers and insiders are engaged in developing wireless sensor networks due to their bright future with various applications. In this paper, the basic concepts, the network protocol，some valuable applications and research projects are briefly introdUCed. Combining with the advantages of UWB technology, the hot spots including physical layer communication link, media Access control schemes, network layer routing protocol, and the location methods are discussed in detail and several future research directions are put forward.
