Reciprocally Benefited Spectrum Access Scheme With Joint Power and Subcarrier Allocation in a Software-Defined Network
Aiming at realizing ubiquitous spectrum access and improving the spectrum efficiency in a software-defined network, in this paper, we adopt the concept of cognitive radio and propose a joint subcarrier and power allocation (JSPA) scheme for reciprocally benefited spectrum access with secondary users...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2015-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/7174936/ |
| _version_ | 1818927895227138048 |
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| author | Dawei Wang Pinyi Ren Qingheh Du Li Sun |
| author_facet | Dawei Wang Pinyi Ren Qingheh Du Li Sun |
| author_sort | Dawei Wang |
| collection | DOAJ |
| description | Aiming at realizing ubiquitous spectrum access and improving the spectrum efficiency in a software-defined network, in this paper, we adopt the concept of cognitive radio and propose a joint subcarrier and power allocation (JSPA) scheme for reciprocally benefited spectrum access with secondary users (SUs) cooperating with primary users (PUs). In our proposed JSPA scheme, SUs adopt the decode-and-forward relaying protocol to help PUs in a two-stage way. Meanwhile, a fraction of unallocated licensed spectrum is allocated for the secondary transmission in every stage. However, if the two-stage cooperation still cannot satisfy the PUs' outage quality-of-service (QoS) requirement, SUs then switch to the access mode and entirely capture the licensed spectrum. Our proposed scheme is to maximize the average transmission rate of SUs through joint optimal subcarriers and power allocation under the constraint of PUs' outage QoS requirement. The closed-form expressions about the outage probability and average transmission of both PUs and SUs are derived, and we prove the optimality of our scheme. Simulation results show that, compared with the conventional cognitive cooperation scheme, the average transmission rate of SUs is improved. |
| first_indexed | 2024-12-20T03:20:17Z |
| format | Article |
| id | doaj.art-ac40f687226b452b8eda11d3f6aec7ef |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-20T03:20:17Z |
| publishDate | 2015-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-ac40f687226b452b8eda11d3f6aec7ef2022-12-21T19:55:14ZengIEEEIEEE Access2169-35362015-01-0131248125910.1109/ACCESS.2015.24640817174936Reciprocally Benefited Spectrum Access Scheme With Joint Power and Subcarrier Allocation in a Software-Defined NetworkDawei Wang0Pinyi Ren1Qingheh Du2Li Sun3Department of Information and Communications Engineering, Xi'an Jiaotong University, Xi’an, ChinaDepartment of Information and Communications Engineering, Xi'an Jiaotong University, Xi’an, ChinaDepartment of Information and Communications Engineering, Xi'an Jiaotong University, Xi’an, ChinaDepartment of Information and Communications Engineering, Xi'an Jiaotong University, Xi’an, ChinaAiming at realizing ubiquitous spectrum access and improving the spectrum efficiency in a software-defined network, in this paper, we adopt the concept of cognitive radio and propose a joint subcarrier and power allocation (JSPA) scheme for reciprocally benefited spectrum access with secondary users (SUs) cooperating with primary users (PUs). In our proposed JSPA scheme, SUs adopt the decode-and-forward relaying protocol to help PUs in a two-stage way. Meanwhile, a fraction of unallocated licensed spectrum is allocated for the secondary transmission in every stage. However, if the two-stage cooperation still cannot satisfy the PUs' outage quality-of-service (QoS) requirement, SUs then switch to the access mode and entirely capture the licensed spectrum. Our proposed scheme is to maximize the average transmission rate of SUs through joint optimal subcarriers and power allocation under the constraint of PUs' outage QoS requirement. The closed-form expressions about the outage probability and average transmission of both PUs and SUs are derived, and we prove the optimality of our scheme. Simulation results show that, compared with the conventional cognitive cooperation scheme, the average transmission rate of SUs is improved.https://ieeexplore.ieee.org/document/7174936/Software-Defined NetworkCognitive RadioJoint Subcarrier and Power AllocationReciprocally-Benefited Spectrum AccessCooperative Communication |
| spellingShingle | Dawei Wang Pinyi Ren Qingheh Du Li Sun Reciprocally Benefited Spectrum Access Scheme With Joint Power and Subcarrier Allocation in a Software-Defined Network IEEE Access Software-Defined Network Cognitive Radio Joint Subcarrier and Power Allocation Reciprocally-Benefited Spectrum Access Cooperative Communication |
| title | Reciprocally Benefited Spectrum Access Scheme With Joint Power and Subcarrier Allocation in a Software-Defined Network |
| title_full | Reciprocally Benefited Spectrum Access Scheme With Joint Power and Subcarrier Allocation in a Software-Defined Network |
| title_fullStr | Reciprocally Benefited Spectrum Access Scheme With Joint Power and Subcarrier Allocation in a Software-Defined Network |
| title_full_unstemmed | Reciprocally Benefited Spectrum Access Scheme With Joint Power and Subcarrier Allocation in a Software-Defined Network |
| title_short | Reciprocally Benefited Spectrum Access Scheme With Joint Power and Subcarrier Allocation in a Software-Defined Network |
| title_sort | reciprocally benefited spectrum access scheme with joint power and subcarrier allocation in a software defined network |
| topic | Software-Defined Network Cognitive Radio Joint Subcarrier and Power Allocation Reciprocally-Benefited Spectrum Access Cooperative Communication |
| url | https://ieeexplore.ieee.org/document/7174936/ |
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