Energy-efficient opportunistic spectrum access in cognitive radio networks with energy harvesting

Sungsoo Park, Seokwon Lee, Beomju Kim, Daesik Hong, Jemin Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

21 Citations (Scopus)

Abstract

In cognitive radio networks, secondary user performs spectrum sensing to detect primary user activities and to access the channel opportunistically. We investigate the problem of developing energy efficient opportunistic spectrum access strategy for a secondary user with energy harvesting capability. We formulate the problem to determine the optimal sensing and access policy as a partially observable Markov decision process (POMDP). Since obtaining the optimal policy is computationally prohibitive, we provide a suboptimal myopic policy that maximizes expected immediate throughput instead of expected total throughput. Simulation results demonstrate that the proposed myopic policy yields improved throughput compared to a random channel selection strategy.

Original languageEnglish
Title of host publicationProceedings of the 4th International Conference on Cognitive Radio and Advanced Spectrum Management, CogART'11
DOIs
Publication statusPublished - 2011 Dec 1
Event4th International Conference on Cognitive Radio and Advanced Spectrum Management, CogART'11 - Barcelona, Spain
Duration: 2011 Oct 262011 Oct 29

Publication series

NameACM International Conference Proceeding Series

Other

Other4th International Conference on Cognitive Radio and Advanced Spectrum Management, CogART'11
CountrySpain
CityBarcelona
Period11/10/2611/10/29

All Science Journal Classification (ASJC) codes

  • Software
  • Human-Computer Interaction
  • Computer Vision and Pattern Recognition
  • Computer Networks and Communications

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  • Cite this

    Park, S., Lee, S., Kim, B., Hong, D., & Lee, J. (2011). Energy-efficient opportunistic spectrum access in cognitive radio networks with energy harvesting. In Proceedings of the 4th International Conference on Cognitive Radio and Advanced Spectrum Management, CogART'11 [62] (ACM International Conference Proceeding Series). https://doi.org/10.1145/2093256.2093318