Title :
Good space-time trellis codes in terms of distance spectrum
Author :
Kang, Guixia ; Zhang, Ping ; Haas, Harald ; Schulz, Egon
Author_Institution :
Wireless Technol. Innovation (WTI) Lab., Beijing Univ. of Posts & Telecommun., China
Abstract :
This paper discusses the design of good space-time trellis codes in terms of distance spectrum. We run two exhaustive searches in the design of good space-time trellis codes. We found that although a lot of space-time trellis codes exist by maximizing the minimum effective Hamming distance and the minimum effective product distance, when the distance spectrum is taken into account, the number of good space-time trellis codes is quite limited. We present some good space-time trellis codes with better distance spectrum. Simulation results demonstrate that these new codes have better performance than previous codes.
Keywords :
Rayleigh channels; error statistics; space-time codes; spectral analysis; trellis codes; BER; MIMO system; bit error rate; code design; distance spectrum; exhaustive search algorithm; flat Rayleigh fading channel; minimum effective Hamming distance; minimum effective product distance; multi-input multi-output system; simulation results; space-time trellis codes; Convolutional codes; Design methodology; Eigenvalues and eigenfunctions; Fading; Hamming distance; Random sequences; Rayleigh channels; Receiving antennas; Search methods; Transmitting antennas;
Conference_Titel :
Vehicular Technology Conference, 2002. Proceedings. VTC 2002-Fall. 2002 IEEE 56th
Print_ISBN :
0-7803-7467-3
DOI :
10.1109/VETECF.2002.1040343
