Space-time block codes for quasi-synchronous cooperative diversity
MILCOM'06 Proceedings of the 2006 IEEE conference on Military communications
WCC'05 Proceedings of the 2005 international conference on Coding and Cryptography
Algebraic tools to build modulation schemes for fading channels
IEEE Transactions on Information Theory
IEEE Transactions on Information Theory
On the theory of space-time codes for PSK modulation
IEEE Transactions on Information Theory
A new approach to layered space-time coding and signal processing
IEEE Transactions on Information Theory
IEEE Transactions on Information Theory
On maximum-likelihood detection and the search for the closest lattice point
IEEE Transactions on Information Theory
Systematic construction of full diversity algebraic constellations
IEEE Transactions on Information Theory
A unified construction of space-time codes with optimal rate-diversity tradeoff
IEEE Transactions on Information Theory
IEEE Transactions on Information Theory
Delay-Tolerant Distributed-TAST Codes for Cooperative Diversity
IEEE Transactions on Information Theory
A simple transmit diversity technique for wireless communications
IEEE Journal on Selected Areas in Communications
DMT analysis of asynchronous OFDM decode-and-forward cooperative networks
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
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The construction of distributed space-time codes for asynchronous relays is considered. A novel algebraic structure is proposed and shown to achieve full diversity for arbitrary number of relays, arbitrary input alphabets, and arbitrary delay profiles among the relays. Unlike previously proposed delay tolerant schemes, the new design has minimum length which translates into smaller decoding complexity at the same transmission rate. Full-rate and full-diversity are achieved by the new designs with or without the use of guard intervals between successive transmissions. Simulation results confirm the mathematical analysis of the proposed codes.