摘要
当今无线传感器网络主要是同构网络,即网络中传感器节点结构相同,该结构不适合基于组的传感器网络.本文通过使用多天线传感器节点作为无线传感器网络中的组长节点将M IMO和SIMO方式引入组间层和组内层组员与组长之间的通讯.文中介绍了该异构网络的基本通讯机制并对其实现进行了讨论,并提出了M IMO的传感器网络功耗和延迟模型.通过模拟实验验证了该模型优于同构网络.
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.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2006年第8期1415-1419,共5页
Acta Electronica Sinica
基金
国家自然科学基金重大研究计划项目(No.90104010)
自然科学基金(No.60241004)
国家863高技术研究发展计划(No.2001AA121016)
国家973重点基础研究发展规划(No.2003CB314801)
关键词
无线传感器网络
多天线节点
MIMO
功耗
延迟
wireless sensor network
multi-antenna node
multiple input multiple output （MIMO）
power consumption
delay
