Reduced-complexity space-time block coding and decoding schemes with block linear precoding

Space-time block codes with low maximum-likelihood decoding complexity

Reduced Complexity Maximum Likelihood Decoding of Linear Block Codes

This paper proposes a reduced complexity Maximum-Likelihood (ML) decoding Algorithm for Linear Block Codes based on the Kaneko decoder and incorporating ruling out conditions for useless iteration steps. The proposed decoding scheme is evaluated over the Additive White Gaussian Noise (AGWN) channel using Binary Phase Shift Key (BPSK) signalling by simulation. Simulations results show that for n...

Space-Time Block Codes with Full Diversity using Linear Precoding and Linear Receivers

Abstract— In order to increase the diversity order of a multiantenna system at a moderate cost of complexity, one may choose Orthogonal Space-Time Block Coding (OSTBC). In this paper, OSTBC is combined with linear precoding matrices to improve the space-time-frequency diversity. Different linear precoding matrices based on either Fourier, Vandermonde or Hadamard constructions are proposed where...

Trellis decoding complexity of linear block codes

AbstructIn this partially tutorial paper, we examine minimal trellis representations of linear block codes and analyze several measures of trellis complexity: maximum state and edge dimensions, total span length, and total vertices, edges and mergers. We obtain bounds on these complexities as extensions of well-known dimensiodlength profile (DLP) bounds. Codes meeting these bounds minimize all ...

Multiuser Space-Time Block Coded MIMO System with Downlink Precoding

Space-time block codes (STBC) are powerful techniques to achieve full spatial diversity in Rayleigh fading channels with low decoding complexity. When channel state information is available to the transmitter, space-time block codes can be improved through the use of a transmit precoder chosen based in part on the current channel state. In this paper, we investigate the downlink transmission of...