A parallel blind demodulator in the presence of intersymbol interference

被引：0

作者：

Kubo, H ^{[1
]}

Okazaki, A ^{[1
]}

Tanada, K ^{[1
]}

Penther, B ^{[1
]}

Miyake, M ^{[1
]}

机构：

[1] Mitsubishi Electr Corp, Inform Technol R&D Ctr, Kamakura, Kanagawa 2478501, Japan

来源：

2001 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-10, CONFERENCE RECORD | 2001年

关键词：

adaptive equalizers; viterbi detection; demodulation; synchronization;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper proposes a demodulator employing data detectors which do not need a known sequence for its startup, i.e., a parallel blind demodulator, in the presence of intersymbol interference (ISI). This demodulator operates as follows: 1) it includes multiple adaptive maximum-likelihood sequence estimations with per-survivor processing (PSP-MLSEs) respectively for different estimated channel memory lengths and different sampling timing thanks to over-sampling; 2) it selects the most reliable PSP-MLSE sequence according to their reliability information. Thus, it uses the known sequence not for data detection and timing/parameter estimation but for the frame synchronization. Finally, computer simulations confirm that performance of this parallel blind demodulator is similar to that of the demodulator with the perfect timing/parameter information in the presence of ISI.

引用

页码：2520 / 2524

页数：5

共 50 条

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