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ADAPTIVE MODULATION AND POWER CONTROL FOR THROUGHPUT ENHANCEMENT IN COGNITIVE RADIOS

ADAPTIVE MODULATION AND POWER CONTROL FOR THROUGHPUT ENHANCEMENT IN COGNITIVE RADIOS
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摘要 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. 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.
作者 Cheng Shilun Yang Zhen Zhang Hui
机构地区 Institute of Signal Processing and Transmission Image and Image Communication Lab of Jiangsu Province
出处 《Journal of Electronics(China)》 2008年第1期65-69,共5页 电子科学学刊（英文版）
基金 Supported by National Natural Science Foundation of China (No.60772062) the Key Projects for Science and Technology of MOE (No.206055) the Key Basic Re-search Projects for the Natural Science of Jiangsu Colleges (No.06KJA51001).
关键词 Cognitive radio Adaptive modulation CROSS-LAYER Power control 功率控制 无线电设备 自适应调制 交叉分层
分类号 TN929.5 [电子电信—通信与信息系统]
  • 相关文献

参考文献9

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二级参考文献10

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共引文献14

Journal of Electronics(China)
2008年 第1期

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