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Ergodic capacity analysis for SIMO cognitive fading channel in spectrum sharing environment

  • Published:
Journal of Electronics (China)

An Erratum to this article was published on 01 November 2010

Abstract

In this paper, we consider the spectrum sharing Cognitive Radio (CR) system, wherein Single-Input Multi-Output (SIMO) cognitive fading channel is assumed. Subject to the average interference constraint of primary user, the ergodic capacity of cognitive user involving joint beamforming and power control is analyzed. We derive the optimal joint beamforming and power control strategy and deduce the general integral expression for ergodic capacity. Furthermore, under different channel fadings including Raleigh fading, Nakagami-m fading and Lognormal shadowing fading, the specific expressions of ergodic capacity for SIMO cognitive channel are exhibited. Most of the expressions are presented in closed-form or with some special integral functions. Large amount of simulations are conducted to corroborate our theoretical results.

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Authors and Affiliations

  1. Institute of Communication Engineering, PLA University of Science and Technology, Nanjing, 210007, China

    Yang Yang, Jinlong Wang, Qihui Wu & Xin Liu

Authors
  1. Yang Yang
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  2. Jinlong Wang
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  3. Qihui Wu
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  4. Xin Liu
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Corresponding author

Correspondence to Yang Yang.

Additional information

Supported by the National Basic Research Program (973) of China (No. 2009CB320400), the National High-Tech Research and Development Program (863) of China (No. 2009AA01Z243), the National Natural Science Foundation of China (No. 61072044), and the Natural Science Fund of Jiangsu Province (BK2009056).

Communication author: Yang Yang, born in 1983, female, Master.

An erratum to this article can be found at http://dx.doi.org/10.1007/s11767-011-1003-0

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Yang, Y., Wang, J., Wu, Q. et al. Ergodic capacity analysis for SIMO cognitive fading channel in spectrum sharing environment. J. Electron.(China) 27, 677–685 (2010). https://doi.org/10.1007/s11767-011-0493-0

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  • DOI: https://doi.org/10.1007/s11767-011-0493-0

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