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Adaptive Modulation and Power Control for throughput enhancement in cognitive radios

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Journal of Electronics (China)

Abstract

To regulate the transmit-power and enhance the total throughput, a novel Transmit Power Control Game (TPCG) algorithm and an adaptive Modulation TPCG (M-TPCG) algorithm which combine bandwidth allocation, adaptive modulation and transmit-power control based on Space Time Block Coding (STBC) OFDM-CDMA system are designed and a cross-layer framework of database sharing is proposed. Simulation results show that the TPCG algorithm can regulate their transmitter powers and enhance the total throughput effectively, M-TPCG algorithm can achieve maximal system throughput. The performance of the cognitive radio system is improved obviously.

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Authors and Affiliations

  1. Institute of Signal Processing and Transmission, Nanjing University of Posts and Telecommunications, Nanjing, 210003, China

    Cheng Shilun, Yang Zhen & Zhang Hui

  2. Image and Image Communication Lab of Jiangsu Province, Nanjing, 210003, China

    Zhang Hui

Authors
  1. Cheng Shilun
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  2. Yang Zhen
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  3. Zhang Hui
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Corresponding author

Correspondence to Cheng Shilun.

Additional information

Supported by National Natural Science Foundation of China (No.60772062), the Key Projects for Science and Technology of MOE (No.206055) and the Key Basic Research Projects for the Natural Science of Jiangsu Colleges (No.06KJA51001).

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Cheng, S., Yang, Z. & Zhang, H. Adaptive Modulation and Power Control for throughput enhancement in cognitive radios. J. Electron.(China) 25, 65–69 (2008). https://doi.org/10.1007/s11767-007-0013-4

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  • DOI: https://doi.org/10.1007/s11767-007-0013-4

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