A Simple and Efficient Method to Mitigate the Hot Spot Problem in Wireless Sensor Networks
Number of Authors: 3
2006 (English)In: Proceedings of Performance Control in Wireless Sensor Networks, 2006, 1Conference paper (Refereed)
Much work on wireless sensor networks deals with or considers the hot spot problem, i.e., the problem that the sensor nodes closest to the base station are critical for the lifetime of the sensor network because these nodes need to relay more packet than nodes further away from the base station. Since it is often assumed that sensor nodes will become inexpensive, a simple solution to the hot spot problem is to place additional sensor nodes around the base stations. Using a simple mathematical model we discuss the possible performance gains of adding these supplementary nodes. Our results show that for certain networks only a limited number of additional nodes are required to fourfold network lifetime. We also show that the possible gain depends heavily on the fraction of nodes already present in the vicinity of the base station.
Place, publisher, year, edition, pages
Computer and Information Science
IdentifiersURN: urn:nbn:se:ri:diva-13836OAI: oai:DiVA.org:ri-13836DiVA: diva2:1035119
Performance Control in Wireless Sensor Networks