Title :
Sphere Decoding of Orthogonal Space-Time Block Codes for Incoherent Channels
Author :
Li, Qiang ; Georghiades, C.N.
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX
Abstract :
We consider decoding orthogonal space-time block codes without channel state information at the receiver. We use the inherent structure of these codes and adapt the sphere decoding method previously used under perfect channel knowledge to efficiently detect transmitted symbols. The resulting performance is within 1.5 dB from that of coherent detection and the proposed method has low complexity in medium and high SNR regions
Keywords :
channel coding; decoding; signal detection; space-time codes; incoherent channels; orthogonal space-time block codes; sphere decoding; transmitted symbols detection; Block codes; Channel state information; Concatenated codes; Detectors; Fading; Maximum likelihood decoding; Maximum likelihood detection; Maximum likelihood estimation; Receiving antennas; Space time codes;
Conference_Titel :
Intelligent Control, 2005. Proceedings of the 2005 IEEE International Symposium on, Mediterrean Conference on Control and Automation
Conference_Location :
Limassol
Print_ISBN :
0-7803-8936-0
DOI :
10.1109/.2005.1467100
