920 search results - page 126 / 184 » Wireless sensor and actor networks: research challenges |
162
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WICON
2008
15 years 7 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...
172
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SAINT
2009
IEEE
16 years 27 days ago
2009
IEEE
The many-to-one multihop traffic pattern of Wireless Sensor Networks (WSN) puts a great challenge on enhancing the event-to-sink data delivery throughput. Because, in CSMA/CA dri...
177
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MOBIHOC
2008
ACM
16 years 5 months ago
2008
ACM
Due to the long propagation delay and high error rate of acoustic channels, it is very challenging to provide reliable data transfer for time-critical applications in an energy-ef...
173
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CCS
2006
ACM
15 years 10 months ago
2006
ACM
Key establishment is a fundamental prerequisite for secure communication in wireless sensor networks. A new node joining the network needs to efficiently and autonomously set up s...
188
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JSAC
2010
15 years 4 months ago
2010
—An important challenge in mobile sensor networks is to enable energy-efficient communication over a diversity of distances while being robust to wireless effects caused by node...