Earticle

Wireless sensor network (WSNs) is more and more attention from researchers in recent years. Wireless sensor network (WSN) is a large number of sensor through the way of wireless communication, mutual connection, the processing, the transmission of information network, can be real-time monitoring, perception and gathering network distribution area of various environmental monitoring object information, or information to process and transmit the information to the user. This article was based on the virtual MIMO STBC space-time coding technology combined with a cluster head cooperative transmission architecture, this paper proposes a suitable for clustering wireless sensor network based on STBC energy-saving transmission scheme of virtual MIMO space-time coding based on STBC based space-time coding in the MIMO system ber performance analysis, SCHCT scheme of the overall energy consumption model is established.

Large time delay is one of the key problems of mobile wireless sensor networks, has been working in reducing mobile wireless sensor network data delay has made certain achievements, but for large scale wireless sensor network (WSN) these methods still can not meet the requirements; In addition, there are studies focusing mobile path planning and the ordinary node to node routing separate consideration, without considering gathering node selection, the common node to node routing as well as the relationship between the moving path. Aiming at this problem, and combining the agricultural large scale wireless sensor network, data allow a certain time delay characteristics, on the basis of this scheme, we design a node to node routing heuristic algorithm.