Increased diversity space-time coding using the diversity transform

Increased diversity space-time coding using the diversity transform

The paper presents a method for constructing space-time block codes for multiple-input multiple-output channels by concatenating orthogonal designs with the so-called diversity transform. Relying on unitary transforms, the diversity transform increases the channel alphabet without sacrificing information rate, bandwidth, or Euclidean distance. The distribution of the resulting channel alphabet ...

Full-diversity full-rate complex-field space-time coding

Exciting recent developments in wireless multiantenna communications have led to designs aiming mainly at one of two objectives: either high-performance by enabling the diversity provided by multi-input multi-output (MIMO) channels or high-rates by capitalizing on space-time multiplexing gains to realize the high capacity of MIMO fading channels. By concatenating a linear complex-field coder (a...

An Adaptive Transmit Diversity with Orthogonal Space-Time Block Coding

Abstract – Design of space-time codes is based on the statistical analysis of the propagation channel. As knowledge of the channel characteristics is not available at the transmitter, the improvement introduced by antenna diversity is primarily relying on the channel having uncorrelated signal paths. We introduce a combination of eigenbeamforming with orthogonal space-time block codes at the tr...

Analytical evaluation of space-time transmit diversity with FEC-coding

Space-time constellation-rotating codes maximizing diversity and coding gains

We apply algebraic number theoretic tools to design linear space-time constellation-rotating (ST-CR) block codes. With an arbitrary number of transmitand receive-antennas, our ST-CR designs achieve symbol/second rate and enjoy maximum diversity gains over quasi-static fading channels. When is an Euler number for mod , or, when for some positive integer , the designed ST-CR precoders also maximi...