Title :
Multichannel multiuser detection of space-time turbo codes: experimental performance results
Author :
Bliss, Daniel W. ; Wu, Peter H. ; Chan, Amanda M.
Author_Institution :
Lincoln Lab., MIT, Lexington, MA, USA
Abstract :
Wireless communication using multiple-input multiple-output (MIMO) systems enables increased spectral efficiency and improved reliability for a given total transmit power. We discuss channel phenomenology and space-time turbo coding. Space-time turbo codes combine the advantages of turbo codes with MIMO systems. The performance of receiver options is investigated, including multichannel multiuser detectors (MCMUD) that iteratively employ space-time-frequency adaptive processing, multiuser detection, and joint channel-data estimation. MIMO capacity is a strong function of channel phenomenology, motivating experimental performance evaluation. Results from outdoor experimental data using a 2 bits/s/Hz, 4/spl times/4 space-time turbo code are presented.
Keywords :
MIMO systems; channel estimation; iterative methods; multipath channels; multiuser detection; radio receivers; space-time adaptive processing; space-time codes; telecommunication network reliability; turbo codes; MIMO capacity; MIMO systems; channel capacity; channel estimation; channel phenomenology; iterative decoding; joint channel-data estimation; multichannel detection; multichannel multiuser detection; multipath environments; multiple-input multiple-output systems; reliability; space-time codes; space-time turbo codes; space-time-frequency adaptive processing; spectral efficiency; wireless communication; Antenna arrays; Iterative decoding; Laboratories; MIMO; Multiuser detection; Power system reliability; Receiving antennas; Transmitters; Transmitting antennas; Turbo codes;
Conference_Titel :
Signals, Systems and Computers, 2002. Conference Record of the Thirty-Sixth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-7576-9
DOI :
10.1109/ACSSC.2002.1196998
