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http://dx.doi.org/10.7840/kics.2016.41.10.1147

Parameter Derivation for Reducing ISI in 2-Dimensional Faster-than-Nyquist Transmission  

Kang, Donghoon (Dept. of Information Communications Eng., Chungnam National University)
Kim, Haeun (Dept. of Information Communications Eng., Chungnam National University)
Park, Kyeongwon (Dept. of Information Communications Eng., Chungnam National University)
Oh, Wangrok (Dept. of Information Communications Eng., Chungnam National University)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.41, no.10, 2016 , pp. 1147-1154 More about this Journal
Abstract
A faster-than-Nyquist (FTN) transmission scheme has been attracting great attention as a spectral efficient transmission scheme. In the FTN transmission scheme, modulated symbols are transmitted at a rate higher than Nyquist rate and thus, a performance loss due to the inter-symbol interference (ISI) is unavoidable. To minimize the performance loss in the FTN transmission scheme, parameters should be carefully optimized. Unfortunately, simulation-based parameter optimization requires significant amount of time and computing power, especially for 2-dimensional FTN systems. In this paper, we propose a 2-dimensional FTN transmission scheme using the optimized parameters based on numerical analysis and simulation results on the ISI. Compared with the conventional Nyquist system, the proposed 2-dimensional FTN transmission scheme not only offers virtually identical bit error performance but also offers higher spectral efficiency.
Keywords
FTN; ISI; Soft-feedback equalizer;
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