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http://dx.doi.org/10.5573/ieek.2013.50.8.021

A Low-Complexity Turbo coded BICM-ID System  

Kang, Donghoon (Department of Information Communications Engineering, Chungnam National University)
Lee, Yongwook (Department of Information Communications Engineering, Chungnam National University)
Oh, Wangrok (Department of Information Communications Engineering, Chungnam National University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.50, no.8, 2013 , pp. 21-27 More about this Journal
Abstract
In this paper, we propose a low-complexity Turbo coded BICM-ID (bit-interleaved coded modulation with iterative decoding) system. A Turbo code is a powerful error correcting code with a BER (bit error rate) performance very close to the Shannon limit. In order to increase spectral efficiency of the Turbo code, a coded modulation combining Turbo code with high order modulation is used. The BER performance of Turbo-BICM can be improved by Turbo-BICM-ID using iterative demodulation and decoding algorithm. However, compared with Turbo-BICM, the decoding complexity of Turbo-BICM-ID is increased by exchanging information between decoder and demodulator. To reduce the decoding complexity of Turbo-BICM-ID, we propose a low-complexity Turbo-BICM-ID system. When compared with conventional Turbo-BICM-ID, the proposed scheme not only show similar BER performance but also reduce the decoding complexity.
Keywords
Turbo code; Bit interleaving; Coded Modulation; Iterative Decoding;
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