L. Guo, P. Wu, and S. Cui, “Power and rate control with dynamic programming for cognitive radios,” in Proceedings of IEEE Global Telecommunications Conference, pp. 1699-1703, November 2007.

has been cited by the following article:

• TITLE: Game Theoretic Analysis of Joint Rate and Power Allocation in Cognitive Radio Networks

  AUTHORS: Dong LI, Xianhua DAI, Han ZHANG

  KEYWORDS: Rate Allocation, Power Allocation, Cognitive Radio, Game Theory

  JOURNAL NAME: International Journal of Communications, Network and System Sciences, Vol.2 No.1, February 26, 2009

  ABSTRACT: Spectrum sharing is an essential enabling functionality to allow the coexistence between primary user (PU) and cognitive users (CUs) in the same frequency band. In this paper, we consider joint rate and power allocation in cognitive radio networks by using game theory. The optimum rates and powers are obtained by iteratively maximizing each CU’s utility function, which is designed to guarantee the protection of primary user (PU) as well as the quality of service (QoS) of CUs. In addition, transmission rates of some CUs should be adjusted if corresponding actual signal-to-interference-plus-noise ratio (SINR) falls below the target SINR. Based on the modified transmission rate for each CU, distributed power allocation is introduced to further reduce the total power consumption. Simulation results are provided to demonstrate that the proposed algorithm achieves a significant gain in power saving.