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 language | English |
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| Title of host publication | Proceedings of the 4th International Conference on Cognitive Radio and Advanced Spectrum Management, CogART'11 |
| DOIs | |
| Publication status | Published - 2011 Dec 1 |
| Event | 4th International Conference on Cognitive Radio and Advanced Spectrum Management, CogART'11 - Barcelona, Spain Duration: 2011 Oct 26 → 2011 Oct 29 |
Publication series
| Name | ACM International Conference Proceeding Series |
|---|
Other
| Other | 4th International Conference on Cognitive Radio and Advanced Spectrum Management, CogART'11 |
|---|---|
| Country | Spain |
| City | Barcelona |
| Period | 11/10/26 → 11/10/29 |
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All Science Journal Classification (ASJC) codes
- Software
- Human-Computer Interaction
- Computer Vision and Pattern Recognition
- Computer Networks and Communications
Cite this
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Energy-efficient opportunistic spectrum access in cognitive radio networks with energy harvesting. / Park, Sungsoo; Lee, Seokwon; Kim, Beomju; Hong, Daesik; Lee, Jemin.
Proceedings of the 4th International Conference on Cognitive Radio and Advanced Spectrum Management, CogART'11. 2011. 62 (ACM International Conference Proceeding Series).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Energy-efficient opportunistic spectrum access in cognitive radio networks with energy harvesting
AU - Park, Sungsoo
AU - Lee, Seokwon
AU - Kim, Beomju
AU - Hong, Daesik
AU - Lee, Jemin
PY - 2011/12/1
Y1 - 2011/12/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84863053995&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84863053995&partnerID=8YFLogxK
U2 - 10.1145/2093256.2093318
DO - 10.1145/2093256.2093318
M3 - Conference contribution
AN - SCOPUS:84863053995
SN - 9781450309127
T3 - ACM International Conference Proceeding Series
BT - Proceedings of the 4th International Conference on Cognitive Radio and Advanced Spectrum Management, CogART'11
ER -