BER Minimization in SVD equalized Wavelet-based Multicarrier Systems using Transmit Power Allocation

BER Minimization in SVD equalized Wavelet-based Multicarrier Systems using Transmit Power Allocation
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使用发射功率分配的 SVD 均衡小波多载波系统中的 BER 最小化

DOI:
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发表时间:
2005
期刊:
International Conference on Information, Communications and Signal Processing
影响因子:
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通讯作者:
C. Lange
C. Lange
中科院分区:
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文献类型:
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作者:
A. Ahrens;C. Lange

文献摘要

被引文献

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在这篇文章中,在有限总发射功率的约束下,研究了在具有 SVD(奇异值分解)均衡的基于小波的多载波传输系统中用于提高 BER 性能的发射功率分配方案。与其他贡献相反,这里的发射功率不仅适应子信道,而且还单独适应 SVD 均衡数据块的每个符号。基于拉格朗日乘子法,研究了不同的解决方案。为了获得数值结果,该方案被示例性地应用于不同的无线电信道特性,包括瑞利和莱斯分布路径系数
In this contribution, transmit power allocation schemes for BER performance improvements in a wavelet-based multicarrier transmission system with SVD (singular value decomposition) equalization are investigated under the constraint of a limited total transmit power. Contrary to other contributions, here the transmit power is not only adapted to the subchannels but rather to each symbol of the SVD equalized data block individually. Based on the Lagrange multiplier method different solutions are investigated. In order to obtain numerical results, the schemes are exemplarily applied to different radio channel characteristics including Rayleigh and Rice distributed path coefficients