Opportunistic relaying based spectrum leasing for cognitive radio networks
Spectrum leasing for cognitive radio (CR) networks is an effective way to improve the spectrum utilization. This paper presents an opportunistic relaying based spectrum leasing for CR networks where the primary users lease their frequency band to the cognitive users. The cognitive users act as relay...
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| Veröffentlicht in: | Journal of communications and networks 2011, 13(1), , pp.50-55 |
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| container_title | Journal of communications and networks |
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| creator | Asaduzzaman Hyung Yun Kong Insoo Koo |
| description | Spectrum leasing for cognitive radio (CR) networks is an effective way to improve the spectrum utilization. This paper presents an opportunistic relaying based spectrum leasing for CR networks where the primary users lease their frequency band to the cognitive users. The cognitive users act as relays for the primary users to improve the channel capacity, and this improved capacity is used for the transmission of secondary users' data. We show that the cognitive users can use a significant portion of the communication resource of primary networks while maintaining a fixed target data rate for the primary users. Moreover, the primary network is also benefited by the cooperating cognitive users in terms of outage probability. Information theoretic analysis and simulation results are presented to evaluate the performances of both primary and cognitive networks. |
| doi_str_mv | 10.1109/JCN.2011.6157251 |
| format | Article |
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This paper presents an opportunistic relaying based spectrum leasing for CR networks where the primary users lease their frequency band to the cognitive users. The cognitive users act as relays for the primary users to improve the channel capacity, and this improved capacity is used for the transmission of secondary users' data. We show that the cognitive users can use a significant portion of the communication resource of primary networks while maintaining a fixed target data rate for the primary users. Moreover, the primary network is also benefited by the cooperating cognitive users in terms of outage probability. 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This paper presents an opportunistic relaying based spectrum leasing for CR networks where the primary users lease their frequency band to the cognitive users. The cognitive users act as relays for the primary users to improve the channel capacity, and this improved capacity is used for the transmission of secondary users' data. We show that the cognitive users can use a significant portion of the communication resource of primary networks while maintaining a fixed target data rate for the primary users. Moreover, the primary network is also benefited by the cooperating cognitive users in terms of outage probability. Information theoretic analysis and simulation results are presented to evaluate the performances of both primary and cognitive networks.</abstract><cop>Séoul</cop><pub>Editorial Department of Journal of Communications and Networks</pub><doi>10.1109/JCN.2011.6157251</doi><tpages>6</tpages></addata></record> |
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| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Applied sciences Cognitive radio (CR) cooperative diversity Exact sciences and technology Fading fading channel Information theory Information, signal and communications theory opportunistic relaying Protocols Radio transmitters Radiocommunication specific techniques Radiocommunications Random variables Receivers Relays Signal to noise ratio spectrum leasing Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Transmission and modulation (techniques and equipments) 전자/정보통신공학 |
| title | Opportunistic relaying based spectrum leasing for cognitive radio networks |
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