Optimum power allocation for a V-BLAST system with two antennas at the transmitter

Optimum power allocation for a V-BLAST system with two antennas at the transmitter

In this letter we propose a power optimization scheme for 2/spl times/N (where N is the number of receive antennas) Vertical Bell Laboratories Layered Space-Time (V-BLAST) systems. The proposed scheme minimizes the uncoded probability of vector error for each channel realization, considering error p...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:IEEE communications letters 2005-09, Vol.9 (9), p.826-828
Hauptverfasser: Kalbasi, R., Falconer, D.D., Banihashemi, A.H.
Format: Artikel
Sprache:eng
Schlagworte:
Algorithms
Allocations
Antennas
Antennas and propagation
Applied sciences
Bit error rate
Errors
Exact sciences and technology
Information theory
Mathematical analysis
MIMO
Noise levels
Optimization
Performance gain
Performance loss
Propagation losses
Radiocommunications
Receiving antennas
Telecommunications
Telecommunications and information theory
Transmitters
Transmitting antennas
Vectors (mathematics)
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:In this letter we propose a power optimization scheme for 2/spl times/N (where N is the number of receive antennas) Vertical Bell Laboratories Layered Space-Time (V-BLAST) systems. The proposed scheme minimizes the uncoded probability of vector error for each channel realization, considering error propagation. Simulation results show that this approach can yield SNR gain of up to about 3 dB for a 2/spl times/2 system at probability of vector error 10/sup -3/ and can partially compensate for the performance loss due to error propagation.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2005.1506716