Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloOn the design of space-time trellis codes for transmit-correlated fading channels
Anno di pubblicazione2007
Autore/iAinat, Alexandre Graell i; Tarable, Alberto
Affiliazioni autoriMicrosoft; Pompeu Fabra University
Autori CNR e affiliazioni
AbstractThe analysis and design of space-time codes for correlated fading channels when the diversity gain is large enough is considered. We derive a simple form for a distance metric that characterizes the code performance in the presence of transmit correlation, and propose some design criteria to build good space-time trellis codes (STTCs) for correlated channels. For the case of two transmit antennas, we show that in strongly correlated channels, performance is governed by the constellation that results from the sum of the constellations associated with the transmit antennas. This suggests the use of new constellations to design better codes for correlated channels. The design criteria are then extended to any number of transmit antennas. Based on these criteria, we derive new STTCs for two and three transmit antennas that perform much better in correlated channels than the STTC optimized for the independent and identically distributed case. We also consider set partitioning applied to the sum constellation as a simple technique to design good codes for correlated channels. The codes derived show performance close to the codes found by an exhaustive search. Finally, we consider antenna selection as an alternative to build good codes for more than two antennas in fading-correlated scenarios.
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Pagine da112
Pagine a121
Pagine totali10
RivistaIEEE transactions on communications (Print)
Attiva dal 1972
Editore: Institute of Electrical and Electronics Engineers] - [New York,
Paese di pubblicazione: Stati Uniti d'America
Lingua: inglese
ISSN: 0090-6778
Titolo chiave: IEEE transactions on communications (Print)
Titolo proprio: IEEE transactions on communications. (Print)
Titolo abbreviato: IEEE trans. commun. (Print)
Titoli alternativi:
  • Transactions on communications (Print)
  • Communications (Print)
Numero volume della rivista55
Fascicolo della rivista1
Verificato da referee-
Stato della pubblicazione-
Indicizzazione (in banche dati controllate)
  • ISI Web of Science (WOS) (Codice:000243952900018)
Parole chiavecorrelated channels, minimum Euclidean distance, multiple-input multiple-output (MIMO), space-time coding
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Strutture CNR
  • IEIIT — Istituto di elettronica e di ingegneria dell'informazione e delle telecomunicazioni
Moduli CNR
    Progetti Europei-
    • On the Design of Space-Time Trellis Codes for Transmit-Correlated Fading Channels