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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Ho-Van Khuong Sofotasios, P.C. Vo Que Son Luu Thanh Tra Pham Hong Lien |
| Copyright Year | 2015 |
| Description | Author affiliation: Dept. of Electron. & Commun. Eng., Tampere Univ. of Technol., Tampere, Finland (Sofotasios, P.C.) || Dept. of Telecommun. Eng., HoChiMinh City Univ. of Technol., Ho Chi Minh City, Vietnam (Ho-Van Khuong; Vo Que Son; Luu Thanh Tra) || Dept. of Electr. & Electron. Eng., Univ. of Tech. Educ., Ho Chi Minh City, Vietnam (Pham Hong Lien) |
| Abstract | This paper analyzes outage performance of cognitive cooperative networks with best relay selection (BRS) and maximum ratio combining (MRC) under maximum transmit power constraint, licensed outage constraint, erroneous channel information, independent non-identical (i.n.i) fading channels, and licensed users' interference. To this end, we firstly propose power allocation for unlicensed transmitters to meet power constraints and account for erroneous channel information and licensed users' interference. Then, we propose an exact closed-form outage probability formula for the unlicensed network to quickly provide useful insights into system performance. Various results demonstrate error floor in the unlicensed network, performance trade-off between the unlicensed network and the licensed network, substantial system performance degradation owing to erroneous channel information and licensed users' interference, and considerable performance enhancement due to the increase in the number of relays. |
| Starting Page | 651 |
| Ending Page | 656 |
| File Size | 164807 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781467383721 |
| ISSN | 21621020 |
| e-ISBN | 9781467383745 |
| DOI | 10.1109/ATC.2015.7388412 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2015-10-14 |
| Publisher Place | Vietnam |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Fading erroneous channel information cognitive radio best relay selection Interference Cooperative systems Quality of service Receivers Relays Licensed outage constraint Signal to noise ratio |
| Content Type | Text |
| Resource Type | Article |
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