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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Ramli, Nordin Zuferi, Wan Nadzlia Shazwanie Wan Mohd Mohamad, Hafizal Anas, Mohamad Nuzli |
| Copyright Year | 2014 |
| Description | Author affiliation: Wireless Communication Cluster, MIMOS Berhad, Technology Park Malaysia, 57000 Kuala Lumpur, Malaysia (Ramli, Nordin; Zuferi, Wan Nadzlia Shazwanie Wan Mohd; Mohamad, Hafizal; Anas, Mohamad Nuzli) |
| Abstract | In this paper, we propose an enhanced strategy for jointly-optimized uncoordinated beamforming over cognitive radio network. We consider a transmission of a single information stream in both primary and secondary links where both primary and secondary users are equipped with multiple antennas and transmit concurrently over the same spectrum. Specifically, the optimum weights to maximize the individual achievable rates are designed for both primary and secondary links and the achievable sum rate performance of the network under the condition that the cross interference at both receivers is totally nullified. The interference cancellation is performed at the secondary user and no coordination between the primary and secondary users is required as we considered uncoordinated beamforming in the network. The proposed design is based on singular value decomposition and iterative water-filling at the primary link while employing discrete search and gradient algorithm at the secondary link. The effect of the number of transmit and receive antennas on the proposed design is also discussed. Simulation results demonstrate that the proposed strategy improves individual user achievable rates and achievable sum rate performance as compared to the previously reported approaches. |
| Starting Page | 1 |
| Ending Page | 6 |
| File Size | 147582 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781479940769 |
| ISSN | 21593450 |
| e-ISBN | 9781479940752 |
| DOI | 10.1109/TENCON.2014.7022417 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-10-22 |
| Publisher Place | Thailand |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Interference Receivers Signal to noise ratio Vectors Transmitters Array signal processing Antennas |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering Computer Science Applications |
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