MIMO-Based Energy-Efficient Wireless Sensor Networks
QU Yu-gui · Dianzi xuebao · 2006
Most architectures of wireless sensor networks(WSN) are built as homogeneous networks,where all sensor nodes have the same structure.But it is not suitable for cluster-based WSN.By using multi-antenna sensor nodes as cluster heads in wireless sensor networks,we import MIMO and SIMO communication modes into inter-cluster layer and inner-cluster layer when sensor nodes communicate with the head.We introduce the basic communication modes in inhomogeneous networks and discuss the realization.The power consumption and delay model of MIMO-based sensor networks are given.We verify that this model is better than homogeneous networks by analysis and simulations.