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Exit Functions of Soft Iterative MIMO Detectors and their Application to Capacity-Approaching Coding

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3 Author(s)
Vazquez-Araujo, F.J. ; Dep. de Electron. y Sistemas, Universidad de A Coruna, Spain ; Gonzalez-Lopez, M. ; Castedo, L.

Design of MIMO capacity-approaching codes relies on matching the extrinsic information transfer (EXIT) functions of the code and the detector. We focus on list sphere detection (LSD) because it presents the best performance/complexity tradeoff. We obtain the EXIT functions of the most representative LSDs: maximum likelihood (ML) and maximum a posteriori (MAP). We then utilize these EXIT functions to design good IRA and SCLDGM codes that perform close to the capacity limits.

Published in:

Acoustics, Speech and Signal Processing, 2007. ICASSP 2007. IEEE International Conference on  (Volume:3 )

Date of Conference:

15-20 April 2007