High-speed overlapped multiplexing transmission system and the detection/decoding algorithm performance

被引：0
|
作者：
Zhang, Xi-Lin [1 ]
Liu, Hai-Tao [2 ]
Li, Dao-Ben [1 ]
机构：
[1] Key Laboratory of Information Processing and Intelligent Technology, School of Information and Engineering, Beijing University of Posts and Telecommunications
[2] Tianjin Key Laboratory of Intelligent Signals Processing, School of Electronical and Information Engineering, Civil Aviation University of China
来源：
| 1841年 / Science Press卷 / 30期
关键词：
Intersymbol interference; Iterative decoding; Maximum A posteriori (MAP) probability; Maximum likelihood sequence detection; Soft-in soft-ou;
D O I：
10.3724/sp.j.1146.2007.01320
中图分类号：
学科分类号：
摘要：
A high-speed data transmission system (Overlapped Time Division Multiplexing System, OvTDM) and its performace are researched in AWGN channel. Simultaneously, the channel coded OvTDM system is researched. The optimal algorithm, which is soft-in soft-out Maximum A Posteriori probability (MAP) iterative joined detection and decoding algorithm is proposed for the coded OvTDM system. Simulation results show that the BER performance of the OvTDM system is better than that of the conventional QAM system under the same spectral efficiency. For the channel coded OvTDM system, the MAP soft-in soft-out iterative algorithm fully utilizes the encoding constraints formed by the OvTDM and obtains the optimal performance.
引用
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页码：1841 / 1844
页数：3
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