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Conference Paper: Robust beamforming in cognitive radio
| Title | Robust beamforming in cognitive radio |
|---|---|
| Authors | |
| Keywords | Additive gaussian noise Cognitive radio Imperfect channel state information Interference level One-dimensional search |
| Issue Date | 2009 |
| Publisher | I E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000784 |
| Citation | The 69th IEEE Vehicular Technology Conference (VTC Spring 2009), Barcelona, Spain, 26-29 April 2009. In Proceedings of the 69th IEEE - VTS, Spring 2009, p. 1-4 How to Cite? |
| Abstract | In cognitive radio, it is crucial to control the interference from secondary users (SUs) to primary users (PUs). This paper studies the use of transmit beamforming in the cognitive secondary network for enhancing the performance of a SU while controlling the interference to the PUs. In particular, we propose to maximize the service probability of the SU with a number of probability constraints on the interference level at the PUs with the aid of imperfect channel state information (CSI). Modeling the CSI uncertainty as an additive Gaussian noise, it is shown that the optimum can be realized by second-order cone-programming (SOCP) in tandem with a one-dimensional search. Results reveal that the proposed approach provides a technique to tradeoff the performance between the PUs and the SU, making an analytical connection between non-robust and worst-case systems. © 2009 IEEE. |
| Persistent Identifier | http://hdl.handle.net/10722/126202 |
| ISBN | |
| ISSN | 2020 SCImago Journal Rankings: 0.277 |
| References |
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Zheng, G | en_HK |
| dc.contributor.author | Ma, S | en_HK |
| dc.contributor.author | Wong, KK | en_HK |
| dc.contributor.author | Ng, TS | en_HK |
| dc.date.accessioned | 2010-10-31T12:15:20Z | - |
| dc.date.available | 2010-10-31T12:15:20Z | - |
| dc.date.issued | 2009 | en_HK |
| dc.identifier.citation | The 69th IEEE Vehicular Technology Conference (VTC Spring 2009), Barcelona, Spain, 26-29 April 2009. In Proceedings of the 69th IEEE - VTS, Spring 2009, p. 1-4 | en_HK |
| dc.identifier.isbn | 978-1-4244-2517-4 | - |
| dc.identifier.issn | 1550-2252 | en_HK |
| dc.identifier.uri | http://hdl.handle.net/10722/126202 | - |
| dc.description.abstract | In cognitive radio, it is crucial to control the interference from secondary users (SUs) to primary users (PUs). This paper studies the use of transmit beamforming in the cognitive secondary network for enhancing the performance of a SU while controlling the interference to the PUs. In particular, we propose to maximize the service probability of the SU with a number of probability constraints on the interference level at the PUs with the aid of imperfect channel state information (CSI). Modeling the CSI uncertainty as an additive Gaussian noise, it is shown that the optimum can be realized by second-order cone-programming (SOCP) in tandem with a one-dimensional search. Results reveal that the proposed approach provides a technique to tradeoff the performance between the PUs and the SU, making an analytical connection between non-robust and worst-case systems. © 2009 IEEE. | en_HK |
| dc.language | eng | en_HK |
| dc.publisher | I E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000784 | en_HK |
| dc.relation.ispartof | IEEE Vehicular Technology Conference | en_HK |
| dc.rights | ©2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. | - |
| dc.subject | Additive gaussian noise | - |
| dc.subject | Cognitive radio | - |
| dc.subject | Imperfect channel state information | - |
| dc.subject | Interference level | - |
| dc.subject | One-dimensional search | - |
| dc.title | Robust beamforming in cognitive radio | en_HK |
| dc.type | Conference_Paper | en_HK |
| dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1550-2252&volume=&spage=1&epage=4&date=2009&atitle=Robust+beamforming+in+cognitive+radio | - |
| dc.identifier.email | Ma, S: sdma@eee.hku.hk | en_HK |
| dc.identifier.email | Ng, TS: tsng@eee.hku.hk | en_HK |
| dc.identifier.authority | Ma, S=rp00153 | en_HK |
| dc.identifier.authority | Ng, TS=rp00159 | en_HK |
| dc.description.nature | published_or_final_version | - |
| dc.identifier.doi | 10.1109/VETECS.2009.5073838 | en_HK |
| dc.identifier.scopus | eid_2-s2.0-70349656428 | en_HK |
| dc.identifier.hkuros | 180590 | en_HK |
| dc.identifier.hkuros | 164455 | - |
| dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-70349656428&selection=ref&src=s&origin=recordpage | en_HK |
| dc.identifier.spage | 1 | - |
| dc.identifier.epage | 4 | - |
| dc.publisher.place | United States | en_HK |
| dc.description.other | The 69th IEEE Vehicular Technology Conference (VTC Spring 2009), Barcelona, Spain, 26-29 April 2009. In Proceedings of the 69th IEEE - VTS, Spring 2009, p. 1-4 | - |
| dc.identifier.scopusauthorid | Zheng, G=16176882900 | en_HK |
| dc.identifier.scopusauthorid | Ma, S=8553949000 | en_HK |
| dc.identifier.scopusauthorid | Wong, KK=7404759940 | en_HK |
| dc.identifier.scopusauthorid | Ng, TS=7402229975 | en_HK |