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Titolo:
Improved design criteria and new trellis codes for space-time coded modulation in slow flat fading channels
Autore:
Tao, MX; Cheng, RS;
Indirizzi:
Hong Kong Univ Sci & Technol, Ctr Wireless Informat Technol, Dept Elect & Elect Engn, Hong Kong, Peoples R China Hong Kong Univ Sci & Technol Hong Kong Peoples R China Peoples R China
Titolo Testata:
IEEE COMMUNICATIONS LETTERS
fascicolo: 7, volume: 5, anno: 2001,
pagine: 313 - 315
SICI:
1089-7798(200107)5:7<313:IDCANT>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Keywords:
diversity; fading channels; MIMO systems; space-time codes;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
4
Recensione:
Indirizzi per estratti:
Indirizzo: Cheng, RS Hong Kong Univ Sci & Technol, Ctr Wireless Informat Technol, Dept Elect & Elect Engn, Clear Water Bay, Hong Kong, Peoples R China Hong KongUniv Sci & Technol Clear Water Bay Hong Kong Peoples R China
Citazione:
M.X. Tao e R.S. Cheng, "Improved design criteria and new trellis codes for space-time coded modulation in slow flat fading channels", IEEE COMM L, 5(7), 2001, pp. 313-315

Abstract

The design criteria for space-time code under slow flat Rayleigh fading environments are well known to be the rank criterion and the determinant criterion. However, the derivation of these two criteria is based on the assumption that the signal-to-noise ratio (SNR) is sufficiently high. Hence thesecriteria are loose when the SNR does not satisfy this assumption. In this letter, we consider this practical issue and derive tighter design criteriafor moderate and low SNRs, Some new space-time trellis codes are found based on the new criteria through computer search. Simulation results show that these codes outperform existing codes under their designed SNR conditions.

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Documento generato il 09/07/20 alle ore 19:58:52