Low-Complexity Spatially Coupled Coded Modulation Approaching the Shannon Limit

2016 Fiscal Year Final Research Report

• Project/Area Number: 26709029
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Communication/Network engineering
• Research Institution: Toyohashi University of Technology (2015-2016); The University of Electro-Communications (2014)
• Principal Investigator: Takeuchi Keigo 豊橋技術科学大学, 工学(系)研究科(研究院), 准教授 (30549697)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 情報通信工学 / 情報理論 / 符号理論 / 符号化変調 / 空間結合

Outline of Final Research Achievements

As a scheme realizing a transmission rate that approaches the Shannon limit―supremum of rates such that error-free transmission is achievable, spatially coupled coded modulation has been proposed. The main result is to provide an intuitive and rigorous proof of spatial coupling effect in iterative demodulation―all signals can be successfully demodulated, with no occurrence of error propagation, meaning that demodulation errors in part of signals affect demodulation performance for the other signals. Also, as applications of spatial coupling, channel estimation and faster-than-Nyquist signaling were theoretically analyzed.

Free Research Field

情報通信工学