DocumentCode :
67478
Title :
New Computational Complexity Reducing IDD Scheme Designed with Optimum Parameters
Author :
Jehoon Cho ; Minsung Kim ; Sinsung Jeong ; Jungho Park ; Taewon Oh
Author_Institution :
Sch. of Inf. & Commun., Korea Univ., Seoul, South Korea
Volume :
17
Issue :
7
fYear :
2013
fDate :
Jul-13
Firstpage :
1313
Lastpage :
1316
Abstract :
An Iterative Detection and Decoding (IDD) scheme in a high-order Multiple-Input Multiple-Output (MIMO) wireless communication system requires a heavy computational complexity for an outstanding Bit Error Rate (BER) performance in a given Signal-to-Noise Ratio (SNR) environment. A new computational complexity reducing IDD scheme designed with optimum parameters is proposed in this paper to guarantee Quality of Service (QoS) without the loss of BER performance. There are three parameters to control the trade-off between computational complexity and BER performance of an IDD scheme: a candidate list size of Dynamic List Sphere Detector (D-LSD), a number of intra-iteration of Turbo decoder, and a number of IDD iteration. A complexity reduction of about 70 % is demonstrated in this study, when the target BER is around 1.0×10(-4) at Eb/N0=7dB in the case of a 4 x 4 MIMO system with 16-ary Quadrature Amplitude Modulation (QAM).
Keywords :
MIMO communication; computational complexity; decoding; error statistics; iterative methods; signal processing; BER performance; IDD iteration; MIMO system; QAM; SNR environment; Turbo decoder; bit error rate; complexity reduction; computational complexity reducing IDD scheme; decoding; dynamic list sphere detector; iterative detection; multiple input multiple output; quadrature amplitude modulation; quality of service; signal to noise ratio; wireless communication system; Bit error rate; Computational complexity; Decoding; Iterative decoding; MIMO; Optimized production technology; Computational complexity; Dynamic List Sphere Detector (D-LSD); Extrinsic Information Transfer (EXIT) chart; Iterative Detection and Decoding (IDD) receiver; Multiple-Input Multiple-Output (MIMO); Quality of Service (QoS); target Bit Error Rate (BER);
fLanguage :
English
Journal_Title :
Communications Letters, IEEE
Publisher :
ieee
ISSN :
1089-7798
Type :
jour
DOI :
10.1109/LCOMM.2013.051313.130663
Filename :
6517355
Link To Document :
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