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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Xiuying Chen Tao Jing Yan Huo Wei Li Xiuzhen Cheng Tao Chen |
| Copyright Year | 2012 |
| Description | Author affiliation: Comput. Sci., George Washington Univ., Washington, DC, USA (Wei Li; Xiuzhen Cheng) || Sch. of Electron. & Inf. Eng., Beijing Jiaotong Univ., Beijing, China (Xiuying Chen; Tao Jing; Yan Huo) || VTT - Tech. Res. Centre of Finland, Oulu, Finland (Tao Chen) |
| Abstract | Previous research on cognitive networks argues that secondary users can only work under a low transmission power condition in an underlay spectrum sharing model. Motivated by the idea of cooperative communications, in this paper we investigate the achievable transmission capacity of a cognitive network that provides cooperative relaying to the primary network over the underlay spectrum sharing model. The feasible region of the relay, the lower bound of the power ratio between the primary network and the secondary network with or without cooperative relaying, as well as the maximum achievable transmission capacity of the secondary network with or without relaying under the outage constraints from both the primary and the secondary network, are carefully studied. Numerical results indicate that secondary users can achieve a higher transmission capacity with cooperative relaying as they can transmit at a higher power while satisfying the outage probability constraints from both systems. |
| Starting Page | 1 |
| Ending Page | 6 |
| File Size | 1003078 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781467329767 |
| ISSN | 21665419 |
| e-ISBN | 9781936968558 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2012-06-18 |
| Publisher Place | Sweden |
| Access Restriction | Subscribed |
| Rights Holder | ICST |
| Subject Keyword | Transmitters Receivers Interference Propagation losses Numerical models Relays Capacity planning |
| Content Type | Text |
| Resource Type | Article |
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