Title :
Low-Complexity Channel-Adaptive MIMO Detection with Just-Acceptable Error Rate
Author :
Lai, I-Wei ; Ascheid, Gerd ; Meyr, Heinrich ; Chiueh, Tzi-Dar
Author_Institution :
Grad. Inst. of Electron. Eng., Nat. Taiwan Univ., Taipei
Abstract :
This paper proposes a new concept of multiple-input multiple-output (MIMO) detection, aiming at minimizing the average computational cost. The detection methods, according to the estimated channel state information, are adapted to deliver just acceptable error rate. Performance of two popular MIMO detectors is analyzed. Based on these analyses, a channel adaptive MIMO (CA-MIMO) receiver with a novel method- selection strategy is investigated. Simulation results demonstrate that the proposed CA-MIMO detector, operating at as low SNR as the sphere search does, achieves huge average complexity saving.
Keywords :
MIMO communication; adaptive signal detection; channel estimation; wireless channels; channel adaptive MIMO detection; channel adaptive MIMO receiver; channel state information; just acceptable error rate; method selection strategy; multiple input multiple output detection; Bit error rate; Detectors; Error analysis; MIMO; Maximum likelihood decoding; Maximum likelihood detection; OFDM; Quality of service; Receiving antennas; Space technology;
Conference_Titel :
Vehicular Technology Conference, 2009. VTC Spring 2009. IEEE 69th
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-2517-4
Electronic_ISBN :
1550-2252
DOI :
10.1109/VETECS.2009.5073657
