NDLI: Channel sensing strategy for channel load estimation

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Channel sensing strategy for channel load estimation

Content Provider	ACM Digital Library
Author	Choi, Brian Sung Chul Gerla, Mario
Abstract	The emergence of multi-channel wireless networks and cognitive radio networks has rendered dynamic channel selection an important task, and many existing channel selection schemes factor in the amount of wireless activities that take place in each channel, or channel load, to achieve load balance and maximize the utilization of wireless resources. In such environments, a monitoring node must sense the channel to estimate the channel load, yet when the node is equipped with a single radio interface, in which case the lone interface must be used for both channel sensing and data communication, there can be only a fixed amount of time allotted to channel sensing. In this paper, we show that a careful scheduling of channel sensing is needed to improve the accuracy of channel load estimation, and based on our findings, we devise a sensing strategy that minimizes the estimation error. Evaluation shows that our scheme can reduce the relative estimation error by as much as 40% in a heavily loaded channel environment.
Starting Page	241
Ending Page	248
Page Count	8
File Format	PDF
ISBN	9781450308984
DOI	10.1145/2068897.2068940
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2011-10-31
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Wireless networks Channel load
Content Type	Text
Resource Type	Article

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