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Transactions: WSEAS TRANSACTIONS ON COMMUNICATIONS
Transactions ID Number: 42-425
Full Name: Zhenzhou Tang
Position: Lecturer
Age: ON
Sex: Male
Address: College of Physics and Electronic Information, Wenzhou University, Wenzhou, 325000
Country: CHINA
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E-mail address: mr.tangzz@gmail.com
Other E-mails: algore1980@sina.com
Title of the Paper: Study on Power and Rate Control Algorithm for Cognitive Wireless Networks
Authors as they appear in the Paper: Qian Hu and Zhenzhou Tang
Email addresses of all the authors: mr.tangzz@gmail.com, algore1980@sina.com
Number of paper pages: 10
Abstract: Rate control and power control are two important issues in cognitive radio networks. In this paper, three rate control strategies are first introduced, namely Dirty Paper Coding (DPC) strategy, Noise strategy, and Opportunistic Interference Cancellation (OIC) strategy. The achievable rates of the three strategies are also compared. Then, optimal power control algorithms are proposed, each corresponding to one rate control strategy. The algorithms achieve the maximum transmit rate for the cognitive user by appropriately controlling the transmit power on each subchannel under the interference temperature constraint of the primary user. Simulation results show that the proposed algorithms can dramatically improve the transmit rate of cognitive user.
Keywords: Cognitive radio, Interference temperature, Power control, Rate control
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