3517 search results - page 621 / 704 » Relay sensor placement in wireless sensor networks |
WICON
2008
14 years 11 months ago
2008
In a tree-based ZigBee network, ZigBee routers (ZRs) must schedule their beacon transmission times to avoid beacon collisions. The beacon schedule determines packet delivery laten...
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NETWORKING
2011
14 years 21 days ago
2011
Abstract. Sensing mechanisms that estimate the occupancy of wireless spectrum are crucial to the success of approaches based on Dynamic Spectrum Access. In this paper, we present k...
GLOBECOM
2010
IEEE
14 years 7 months ago
2010
IEEE
This paper addresses the issue of network life during repeated broadcasts originating from the same source in large, strip-shaped wireless sensor networks. The proposed technique w...
JSAC
2010
14 years 8 months ago
2010
—The advent of practical rateless codes enables implementation of highly efficient packet-level forward error correction (FEC) strategies for reliable data broadcasting in loss-...
AAIM
2009
Springer
15 years 4 months ago
2009
Springer
This paper studies the aggregation of messages in networks that consist of a chain of nodes, and each message is time-constrained such that it needs to be aggregated during a give...