基于OFDM的宽带固定无线城域网信道估计与均衡研究

The 7th International Conference on Advanced Communication Technology, 2005, ICACT 2005. Pub Date : 2005-07-11 DOI:10.1109/ICACT.2005.245831

R. Alihemmati, M. Kalantari

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引用次数: 19

摘要

本文对基于OFDM的高速无线城域网的各种信道估计和均衡算法进行了比较研究，并从均方误差(MSE)、误码率(BER)和计算复杂度方面进行了分析。我们考虑了文献中提出的关于典型OFDM系统的信道估计和均衡的一些算法，然后在基于OFDM技术的IEEE 802.16a标准WMAN网络的实际MMDS应用中得出一个有效且合适的方案，并提出了一些降低复杂性的建议。根据标准规范，评估了所建议物理层的各种配置下的系统性能，特别是不同编码和调制组合(PHY模式)以及未编码情况下的系统性能

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On channel estimation and equalization in OFDM based broadband fixed wireless MAN networks

In this paper, a comparative investigation on various channel estimation and equalization algorithms for OFDM based high rate wireless MAN networks is presented and analyzed in terms of mean-square error (MSE), bit-error rate (BER) and computational complexity. We consider some of the proposed algorithms regarding channel estimation and equalization for typical OFDM systems in the literature, and then conclude an efficient and suitable scheme with some complexity reduction suggestions, in implementing a practical MMDS application of the IEEE 802.16a standard WMAN networks based on the OFDM technique. The system performance under various configurations of the proposed physical layer based on the standard specifications especially for different coding & modulation combinations (PHY modes) as well as uncoded case, be evaluated

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来源期刊

The 7th International Conference on Advanced Communication Technology, 2005, ICACT 2005.

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