10 August 2004 Simple iterative method to exploit the signal space diversity
Author Affiliations +
Abstract
Signal space diversity is a power and bandwidth efficient diversity technique. To exploit the signal space diversity, joint maximum-likelihood (ML) detection at the receiver is usually needed, where the complexity grows expontentially with the dimension of a lattice. In this paper, we propose a serial concatenated scheme and two simple iterative methods to exploit the signal space diversity. The simple iterative methods are based on the idea of soft interference cancellation. The first iterative method is based on a scalar Gaussian approximation while the second one is a vector Gaussian approximation. The complexity of the first iterative method grows linearly with the dimension of the lattice, and the simulations show that when the dimension of the lattice N = 32, at BER = 10-5, the performance gap between the Rayleigh fading channel and the Gaussian channel is only 0.3 dB. The complexity of the second iterative method grows cubically with the dimension of the lattice and the simulations show that its performance approaches that of the optimal MAP detection method.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yabo Li, Yabo Li, Xiang-Gen Xia, Xiang-Gen Xia, Genyuan Wang, Genyuan Wang, } "Simple iterative method to exploit the signal space diversity", Proc. SPIE 5440, Digital Wireless Communications VI, (10 August 2004); doi: 10.1117/12.562324; https://doi.org/10.1117/12.562324
PROCEEDINGS
12 PAGES


SHARE
RELATED CONTENT

VCSEL modal dynamics and implications for 100Gbps links
Proceedings of SPIE (February 25 2017)
Minimum-redundancy ISI-free FIR filterbank transceivers
Proceedings of SPIE (December 04 2000)
Space-time modulation for unknown fading
Proceedings of SPIE (June 24 1999)
Reconfigurable optical transmitters and receivers
Proceedings of SPIE (January 24 2012)
New coding scheme for ISI channels: modulated codes
Proceedings of SPIE (June 24 1999)

Back to Top