Improved link adaptation for closed-loop turbo coded MIMO systems with LMMSE-IC based turbo equalization

In this paper, we tackle the problem of link adaptation in closed-loop turbo coded multiple-input multiple-output antenna systems with non-linear turbo receivers performing iterative linear minimum mean-square error (soft) interference cancellation (LMMSE-IC) and turbo decoding. The proposed link ad...

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Bibliographic Details
Published in:2013 IEEE 9th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob) pp. 174 - 180
Main Authors: Baozhu Ning, Visoz, Raphael, Berthet, Antoine O.
Format: Conference Proceeding
Language:English
Published: IEEE 01.10.2013
Subjects:
Decoding
Fading
Interference
Iterative decoding
Labeling
Receivers
Vectors
ISSN:2160-4886
Online Access:Get full text
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Summary:In this paper, we tackle the problem of link adaptation in closed-loop turbo coded multiple-input multiple-output antenna systems with non-linear turbo receivers performing iterative linear minimum mean-square error (soft) interference cancellation (LMMSE-IC) and turbo decoding. The proposed link adaptation scheme relies on a low rate feedback and operates joint spatial precoder selection (e.g., antenna selection) and modulation-coding scheme selection so as to maximize the average rate subject to a target block error rate constraint. The paper first revisits in detail the architecture of the whole turbo receiver, then presents a semi-analytical performance prediction method to analyze its evolution through the stochastic modeling of each of the components. Based on this PHY-layer abstraction, average predicted and simulated throughputs are shown for different communication scenarios.
ISSN:2160-4886
DOI:10.1109/WiMOB.2013.6673358