Increasing Connectivity in Wireless Sensor Network using Cooperative Transmission
international conference on networked sensing systems(2006)
摘要
Wireless sensor networks are used to perform sensor measurements under a variety of conditions. In settings with sparse distribution of sensor nodes, multi-hop routing is traditionally used to forward information from a source node to a destination node. A problem with this approach is that loss of connectivity of nodes in the path between source and destination may lead to a partitioning of the network. We present cooperative transmission to connect previously disconnected parts of a network thus overcoming the separation problem of multi-hop networks. We show that this approach im- proves connectivity over 50% compared to multi-hop approaches and reduces the number of nodes necessary to provide full coverage of an area up to 30%. The paper presents theory, a comparison of 3 types of cooperative transmission approaches to multi-hop networks and shows the practical feasibility by pre- senting a prototypical implementation on the Particle Computer wireless sensor node platform.
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关键词
wireless sensor network
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