Concept

Space–time code

Related publications (52)

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Optimal Estimator-Detector Receivers for Space-Time Block Coding

Olivier Roy

Most space-time coding schemes can be classified either as non-coherent or coherent. In this paper we prove that optimal non-coherent decoding can always be decomposed into a channel estimation step followed by coherent decoding step. Surprisingly the requ ...

2004

MIMO space-time block coded receivers over frequency selective fading channels

Ali H. Sayed

We develop an adaptive receiver for multiple-input multiple-output (MIMO) frequency selective channels that employ space-time block-coded transmissions with cyclic prefixing. The receiver performs both interference suppression and equalization for multiuse ...

IEEE2004

Adaptive channel estimation for MIMO space-time coded communications

Ali H. Sayed

We develop adaptive channel estimation techniques for multiple-input multiple-output (MIMO) channels with space-time block-coded (STBC) communications. We describe a unified framework for adaptive channel estimation for multi-user Alamouti STBC transmissio ...

IEEE2004

Optimal Estimator-Detector Receivers for Space-Time Block Coding

Olivier Roy

Most space-time coding schemes can be classified either as non-coherent (decoding is performed without forming an explicit channel estimate) or coherent (decoding is performed conditioned upon a channel estimate as if it were the actual channel realisation ...

2004

Optimal Estimator-Detector Receivers for Space-Time Block Coding

Olivier Roy

2004

A divide-and-conquer algorithm for channel estimation in multi-user space-time coded transmissions

Ali H. Sayed

We develop channel estimation techniques for multiple-input multiple-output (MIMO) channels that employ space-time block-coded (STBC) transmissions. We derive the MMSE channel estimator for multi-user Alamouti STBC transmissions over both flat fading and f ...

2004

Adaptive Channel Estimation for Space-Time Block Coded MIMO--OFDM Communications

Ali H. Sayed

We develop adaptive channel estimation techniques for space–time block–coded (STBC) multiple–input multiple–output (MIMO) orthogonal frequency division multiplexing (OFDM) communications. The structure of the space–time code is exploited to lower the compl ...

2004

Adaptive MIMO OFDM Receivers: Implementation Impairments and Complexity Issues

Ali H. Sayed

MIMO OFDM communications is a promising choice for future high data rate wireless systems. However, the commercial deployment of MIMO OFDM systems faces some challenges, including those arising from front-end analog implementation impairments and complex ...

2004

Space-time coding in MISO-OFDM systems with implementation impairments

Ali H. Sayed

Implementation of OFDM-based systems suffers from in-phase and quadrature-phase (IQ) imbalances in the front-end analog processing. The resulting distortion due to IQ imbalances can limit the achievable operating SNR at the receiver, especially when space- ...

IEEE2004

Exploiting spatio-temporal correlation for rate-efficient transmit beamforming

Ali H. Sayed

With multiple antennas at the transmitter, either space-time block coding or beamforming can be used as the transmission scheme depending on the availability of channel state information at the transmitter. Although beamforming can provide superior perform ...

IEEE2004