Title :
Robust semi-definite relaxation MIMO detection in a non-gaussian channel
Author :
Vovnoboy, Jakob ; Wiesel, Ami ; Wing-Kin Ma
Author_Institution :
Dept. of Comput. Sci., Hebrew Univ. of Jerusalem, Jerusalem, Israel
Abstract :
Semi-definite relaxation (SDR) is a popular technique for Multi-Input Multi-Output (MIMO) detection. For Binary Phase-Shift Keying (BPSK) and Quadratic Phase-Shift Keying (QPSK), it has been found that SDR can provide a near-optimal Bit Error rate (BER) performance in a Gaussian channel. However if the noise in the channel deviates from the Gaussian model, as it does in many real wireless channels, BER performance drops considerably. In this paper we show that SDR can be applied for detection in a non-Gaussian channel using Huber´s M-estimation method for robust regression.
Keywords :
Gaussian channels; MIMO communication; error statistics; phase shift keying; BPSK; Huber´s M-estimation method; QPSK; binary phase-shift keying; bit error rate; multi-input multi-output detection; non-Gaussian channel; non-gaussian channel; quadratic phase-shift keying; robust semi-definite relaxation MIMO detection; Bit error rate; Detectors; MIMO; Noise; Robustness; Standards; Vectors;
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2013 IEEE International Conference on
Conference_Location :
Vancouver, BC
DOI :
10.1109/ICASSP.2013.6638714
