IEEE 802.11n: Effects of Feedback Non-Idealities on Performance of Transmit Beamforming Transceivers

Author

Fabris Hoefel, Roger Pierre

Author_Institution

Dept. of Electr. Eng., Fed. Univ. of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil

fYear

2013

fDate

2-5 June 2013

Firstpage

1

Lastpage

5

Abstract

Firstly, we define a set of transmit beamforming (TxBF) transceiver architectures in the framework of IEEE 802.11n systems. In the following, assuming frequency selective spatially correlated TGn D channels, we carry out a comparative performance analysis taking into accounting the effects of realistic time synchronization and channel estimation schemes and practical feedback issues (i.e., delay, quantization and subcarrier grouping) on the throughput gains of the TxBF schemes over the Vertical Bell lab Layered Space Time (V-BLAST) spatial division multiplexing (SDM) scheme.

Keywords

channel estimation; radio transceivers; space division multiplexing; wireless LAN; IEEE 802.11 systems; SDM scheme; TxBF transceiver architectures; V-BLAST scheme; Vertical Bell lab Layered Space Time scheme; channel estimation schemes; comparative performance analysis; feedback non-idealities; frequency selective spatially correlated TGn D channels; realistic time synchronization; spatial division multiplexing scheme; subcarrier grouping; throughput gains; transmit beamforming transceivers; Delays; IEEE 802.11n Standard; MIMO; OFDM; Signal to noise ratio; Synchronization; Transceivers;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC Spring), 2013 IEEE 77th

Conference_Location

Dresden

ISSN

1550-2252

Type

conf

DOI

10.1109/VTCSpring.2013.6692584

Filename

6692584