Optimal Throughput for Cognitive Radio with Energy Harvesting in Fading Wireless Channel
Energy resource management is a crucial problem of a device with a finite capacity battery. In this paper, cognitive radio is considered to be a device with an energy harvester that can harvest energy from a non-RF energy resource while performing other actions of cognitive radio. Harvested energy w...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/370658 |
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| _version_ | 1832565734288392192 |
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| author | Hiep Vu-Van Insoo Koo |
| author_facet | Hiep Vu-Van Insoo Koo |
| author_sort | Hiep Vu-Van |
| collection | DOAJ |
| description | Energy resource management is a crucial problem of a device with a finite capacity battery. In this paper, cognitive radio is considered to be a device with an energy harvester that can harvest energy
from a non-RF energy resource while performing other actions of cognitive radio. Harvested energy will be stored in a finite capacity battery. At the start of the time slot of cognitive radio, the radio needs to determine if it should remain silent or carry out spectrum sensing based on the idle probability of the primary user and the remaining energy in order to maximize the throughput of the cognitive radio system. In addition, optimal sensing energy and adaptive transmission power control are also investigated in this paper to effectively utilize the limited energy of cognitive radio. Finding an optimal approach is formulated as a partially observable Markov decision process. The simulation results show that the proposed optimal decision scheme outperforms the myopic scheme in which current throughput
is only considered when making a decision. |
| format | Article |
| id | doaj-art-a9947ab3b5d24f82a1d2fe048cd9f4b4 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-a9947ab3b5d24f82a1d2fe048cd9f4b42025-02-03T01:06:49ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/370658370658Optimal Throughput for Cognitive Radio with Energy Harvesting in Fading Wireless ChannelHiep Vu-Van0Insoo Koo1School of Electrical Engineering, University of Ulsan, Muger-Dong San-29, Ulsan 680-749, Republic of KoreaSchool of Electrical Engineering, University of Ulsan, Muger-Dong San-29, Ulsan 680-749, Republic of KoreaEnergy resource management is a crucial problem of a device with a finite capacity battery. In this paper, cognitive radio is considered to be a device with an energy harvester that can harvest energy from a non-RF energy resource while performing other actions of cognitive radio. Harvested energy will be stored in a finite capacity battery. At the start of the time slot of cognitive radio, the radio needs to determine if it should remain silent or carry out spectrum sensing based on the idle probability of the primary user and the remaining energy in order to maximize the throughput of the cognitive radio system. In addition, optimal sensing energy and adaptive transmission power control are also investigated in this paper to effectively utilize the limited energy of cognitive radio. Finding an optimal approach is formulated as a partially observable Markov decision process. The simulation results show that the proposed optimal decision scheme outperforms the myopic scheme in which current throughput is only considered when making a decision.http://dx.doi.org/10.1155/2014/370658 |
| spellingShingle | Hiep Vu-Van Insoo Koo Optimal Throughput for Cognitive Radio with Energy Harvesting in Fading Wireless Channel The Scientific World Journal |
| title | Optimal Throughput for Cognitive Radio with Energy Harvesting in Fading Wireless Channel |
| title_full | Optimal Throughput for Cognitive Radio with Energy Harvesting in Fading Wireless Channel |
| title_fullStr | Optimal Throughput for Cognitive Radio with Energy Harvesting in Fading Wireless Channel |
| title_full_unstemmed | Optimal Throughput for Cognitive Radio with Energy Harvesting in Fading Wireless Channel |
| title_short | Optimal Throughput for Cognitive Radio with Energy Harvesting in Fading Wireless Channel |
| title_sort | optimal throughput for cognitive radio with energy harvesting in fading wireless channel |
| url | http://dx.doi.org/10.1155/2014/370658 |
| work_keys_str_mv | AT hiepvuvan optimalthroughputforcognitiveradiowithenergyharvestinginfadingwirelesschannel AT insookoo optimalthroughputforcognitiveradiowithenergyharvestinginfadingwirelesschannel |