Performance and design of space-time coding in fading channels (original) (raw)

Effect of spatial fading correlation on performance of space-time codes

Electronics Letters, 2001

The performance of space-time codes is investigated over Rayleigh fading channels with spatially correlated fading between transmit antennas. An exact pairwise error probability is derived based on which an analytical estimate for bit error probability is computed. The analytical results are verified through computer simulation

IJERT-Performance Analysis Of Space Time Block Codes Over Rayleigh Fading Channel

International Journal of Engineering Research and Technology (IJERT), 2013

https://www.ijert.org/performance-analysis-of-space-time-block-codes-over-rayleigh-fading-channel https://www.ijert.org/research/performance-analysis-of-space-time-block-codes-over-rayleigh-fading-channel-IJERTV2IS80091.pdf To overcome the effect of multi-path fading of the channel and to achieve full diversity, the multiple antennas seems to be an efficient solution. STBC provides a new concept of transmission over Rayleigh channel using multiple transmit and receive antenna. This paper presents a detailed study of STBC scheme which includes the Alamouti's STBC for two transmitting antennas as well as orthogonal space time codes (OSTBC) for three and four transmitting antennas. Bit Error Rate (BER) performance is simulated and analyzed for different constellation schemes as BPSK, QPSK ,8-PSK and 16-QAM using MATLAB.

Space-time codes for fading channels

1999

Space-time codes are designed for efficient transmission using multiple transmit antennas. In this paper, we propose space-time codes which combine the Ungerboeck one-size larger constellation principle with the simple transmit diversity technique of Alamouti (1998). The proposed codes provide several dB additional coding gain over the well-known space-time codes while keeping the complexity almost the same

Diversity analysis of space-time coding in cascaded Rayleigh fading channels

2006

Abstract Cascaded Rayleigh distribution is used to model multipath fading in mobile-to-mobile communication scenarios and provides a better fit to experimental data in such scenarios compared to the conventional Rayleigh channel model. In this letter, we derive an exact expression for the pairwise error probability (PEP) of space-time trellis codes over the cascaded Rayleigh fading channel, which is in the form of a simple single finite-range integral.

A Unified SNR-Dependent Analysis of Space–Time Codes in Fading Channels

IEEE Transactions on Information Theory, 2000

ABSTRACT The pairwise error probability (PEP) for multiple- input multiple-output (MIMO) radio interfaces is investigated by means of a novel formulation based on compound matrices. The proposed approach is suitable for any MIMO system having average upper-bounded PEP written as [det( I + gamma A )]-zeta, where A is a Hermitian matrix, zeta an integer number, and gamma the signal-to-noise ratio (SNR); that bound frequently results in MIMO single- and multicarrier transmissions. It is shown that the minimization of the bounded PEP should consider the whole set of nonzero compound matrices of A . In particular, the SNR of interest marks the compound matrix that mainly drives the system performance. Both diversity advantage and coding gain are given as continuous functions of the variable gamma, hence, their asymptotic behaviors are taken as important case of studies. The interaction effects between channel code and propagation environment are also discussed. It is shown how the eigenvectors and eigenvalues of the autocorrelation channel matrix may be considered for code design. It is also proved the maximization of the code rank is not always a necessary requirement for performance improvement being its optimal value fixed by the channel structure and SNR of interest. Finally, the analysis is applied to space-time trellis-coded transmissions over spatially correlated slow Rayleigh-fading channels.