Title :
Design and performance of turbo space-time coded modulation
Author :
Cui, Dongzhe ; Haimovich, Alexander M.
Author_Institution :
Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA
Abstract :
In this paper we introduce a new scheme for parallel concatenated turbo space-time coding. We refer to turbo space-time coded modulation (turbo-STCM). Turbo-STCM use systematic space-time codes as constituent codes. Puncturing is used to obtain full rate codes. The new codes combine the high coding gain of turbo-codes with the spatial diversity advantage of space-time processing and the bandwidth efficiency of coded modulation under a single framework. Using simple STCM component encoders, performance is studied by simulations for a 4-PSK turbo-STCM code with two transmit and two receive antennas over a block fading channel. Significant gains are shown over conventional space-time coding. We also derive the union bound for 2 bps/Hz, 4-PSK turbo-STCM with two transmit and one receive antenna over the AWGN channel. The analysis provides a practical tool to analyze the performance of turbo codes with multiple antennas
Keywords :
AWGN channels; concatenated codes; fading channels; modulation coding; phase shift keying; turbo codes; 4-PSK; AWGN channel; bandwidth efficiency; block fading channel; full rate codes; high coding gain; multiple antennas; parallel concatenated turbo space-time coding; punctured codes; receive antennas; space-time processing; spatial diversity; systematic space-time codes; transmit antennas; turbo space-time coded modulation; turbo-STCM; turbo-codes; union bound; AWGN channels; Bandwidth; Concatenated codes; Fading; Modulation coding; Performance analysis; Quadrature phase shift keying; Receiving antennas; Space time codes; Turbo codes;
Conference_Titel :
Global Telecommunications Conference, 2000. GLOBECOM '00. IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-6451-1
DOI :
10.1109/GLOCOM.2000.891913
