Title :
Design of simplified receiver for space-time bit-interleaved coded modulation systems
Author :
Lee, Inkyu ; Sundberg, Carl-Erik W.
Author_Institution :
Dept. of Commun. Eng., Korea Univ., Seoul, South Korea
Abstract :
In this paper, we study a new family of bandwidth efficient flexible space-time coding schemes which combine bit-interleaved coded modulation with multiple transmit and receive antennas in a narrow band flat fading channel. We address receiver complexity for a large number of transmit antennas and higher order modulation constellations. Simplified receivers utilizing tentative decisions are proposed and evaluated by means of simulations. Tradeoffs between complexity reduction and performance loss are presented. A system with 4 transmits antennas with an 8 fold complexity reduction and a performance loss of about 1 dB is demonstrated.
Keywords :
antenna arrays; fading channels; interleaved codes; modulation coding; radio receivers; receiving antennas; space-time codes; transmitting antennas; 1 dB; bit-interleaved coded modulation; complexity reduction; multiple receive antennas; multiple transmit antennas; narrow band flat fading channel; performance loss; receiver complexity; simplified receiver; space-time coding; tentative decisions; Convolutional codes; Interleaved codes; Iterative decoding; MIMO; Modulation coding; Narrowband; Performance loss; Receivers; Receiving antennas; Transmitting antennas;
Conference_Titel :
Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual
Print_ISBN :
0-7803-7757-5
DOI :
10.1109/VETECS.2003.1207095
