Frontiers of Electrical and Electronic Engineering >

2010 , Vol. 5 >Issue 4: 441 - 448

DOI: https://doi.org/10.1007/s11460-010-0093-z

RESEARCH ARTICLE

Location-aware downlink and uplink power control and throughput optimization in cellular cognitive radio networks

  • Zhiyao MA 1 ,
  • Wei CHEN 1 ,
  • Zhigang CAO , 1 ,
  • Khaled Ben LETAIEF 2
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  • 1. State Key Laboratory on Microwave and Digital Communications, Tsinghua National Laboratory for Information Science and Technology (TNList), Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
  • 2. Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Hong Kong, China

Received date: 21 Jan 2010

Accepted date: 12 Feb 2010

Published date: 05 Dec 2010

Copyright

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg
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Abstract

In this paper, we consider throughput maximization in cognitive radio systems with proper power control. In particular, we incorporate location-awareness into the power control design and maximize the average throughput of the cognitive system. As we shall show, the proposed approach effectively utilizes the “spatial opportunity” to maximize the system throughput, which clearly outperforms traditional power control methods. Further, the proposed approach still exhibits significant throughput gain even considering imperfect position information, with appropriate robust design modifications.

Key words： cognitive radios; spectrum hole; power control; localization; optimization

Cite this article

Zhiyao MA , Wei CHEN , Zhigang CAO , Khaled Ben LETAIEF . Location-aware downlink and uplink power control and throughput optimization in cellular cognitive radio networks[J]. Frontiers of Electrical and Electronic Engineering, 2010 , 5(4) : 441 -448 . DOI: 10.1007/s11460-010-0093-z

Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant No. 60832008), and National Natural Science Foundation of China / Research Grants Council of Hong Kong (No. N-HKUST622/06).

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