Abstract
Cognitive radio (CR) has been studied as a useful solution for efficient utilization of scarce radio spectrums. For it to succeed, two conflicting challenges are imposed on the secondary users: one is to ensure the quality of service (QoS) of the primary link, and the other is to maximize their own transmit throughput. To balance this tradeoff, beamforming and power control employing the multi-antenna in the base station (BS) of the CR network have been introduced. In the perfect beamforming situation, the power control algorithms suitable in the CR network with a multi-antenna BS (MBS) have been proposed in previous works. However, those algorithms are meaningless for realizing a practical CR network with the MBS since perfect beamforming is impossible. Therefore, unlike previous works, this paper proposes a joint beamforming and power control algorithm as a more practical strategy for realizing a CR network with the MBS. The algorithm is proposed so as to maximize the sum-rate of secondary users, while not degrading QoS for the primary link. Numerical results verify its effectiveness in a CR network with the MBS.
| Original language | English |
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| Title of host publication | 2010 IEEE Wireless Communications and Networking Conference, WCNC 2010 - Proceedings |
| DOIs | |
| Publication status | Published - 2010 Aug 3 |
| Event | IEEE Wireless Communications and Networking Conference 2010, WCNC 2010 - Sydney, NSW, Australia Duration: 2010 Apr 18 → 2010 Apr 21 |
Publication series
| Name | IEEE Wireless Communications and Networking Conference, WCNC |
|---|---|
| ISSN (Print) | 1525-3511 |
Other
| Other | IEEE Wireless Communications and Networking Conference 2010, WCNC 2010 |
|---|---|
| Country | Australia |
| City | Sydney, NSW |
| Period | 10/4/18 → 10/4/21 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
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Joint beamforming and power control algorithm for cognitive radio network with the multi-antenna base station. / You, Seungjin; Noh, Gosan; Lee, Jemin; Wang, Hano; Hong, Daesik.
2010 IEEE Wireless Communications and Networking Conference, WCNC 2010 - Proceedings. 2010. 5506457 (IEEE Wireless Communications and Networking Conference, WCNC).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Joint beamforming and power control algorithm for cognitive radio network with the multi-antenna base station
AU - You, Seungjin
AU - Noh, Gosan
AU - Lee, Jemin
AU - Wang, Hano
AU - Hong, Daesik
PY - 2010/8/3
Y1 - 2010/8/3
N2 - Cognitive radio (CR) has been studied as a useful solution for efficient utilization of scarce radio spectrums. For it to succeed, two conflicting challenges are imposed on the secondary users: one is to ensure the quality of service (QoS) of the primary link, and the other is to maximize their own transmit throughput. To balance this tradeoff, beamforming and power control employing the multi-antenna in the base station (BS) of the CR network have been introduced. In the perfect beamforming situation, the power control algorithms suitable in the CR network with a multi-antenna BS (MBS) have been proposed in previous works. However, those algorithms are meaningless for realizing a practical CR network with the MBS since perfect beamforming is impossible. Therefore, unlike previous works, this paper proposes a joint beamforming and power control algorithm as a more practical strategy for realizing a CR network with the MBS. The algorithm is proposed so as to maximize the sum-rate of secondary users, while not degrading QoS for the primary link. Numerical results verify its effectiveness in a CR network with the MBS.
AB - Cognitive radio (CR) has been studied as a useful solution for efficient utilization of scarce radio spectrums. For it to succeed, two conflicting challenges are imposed on the secondary users: one is to ensure the quality of service (QoS) of the primary link, and the other is to maximize their own transmit throughput. To balance this tradeoff, beamforming and power control employing the multi-antenna in the base station (BS) of the CR network have been introduced. In the perfect beamforming situation, the power control algorithms suitable in the CR network with a multi-antenna BS (MBS) have been proposed in previous works. However, those algorithms are meaningless for realizing a practical CR network with the MBS since perfect beamforming is impossible. Therefore, unlike previous works, this paper proposes a joint beamforming and power control algorithm as a more practical strategy for realizing a CR network with the MBS. The algorithm is proposed so as to maximize the sum-rate of secondary users, while not degrading QoS for the primary link. Numerical results verify its effectiveness in a CR network with the MBS.
UR - http://www.scopus.com/inward/record.url?scp=77955041705&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77955041705&partnerID=8YFLogxK
U2 - 10.1109/WCNC.2010.5506457
DO - 10.1109/WCNC.2010.5506457
M3 - Conference contribution
AN - SCOPUS:77955041705
SN - 9781424463985
T3 - IEEE Wireless Communications and Networking Conference, WCNC
BT - 2010 IEEE Wireless Communications and Networking Conference, WCNC 2010 - Proceedings
ER -