A novel transmit beamforming scheme for BER improvement in EIRP constrained UWB systems

Author

Han, Shou ; Cheng, Xiantao ; Wu, Gang ; Yue, Guangrong

Author_Institution

Nat. Key Lab. of Sci. & Technol. on Commun., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2011

fDate

9-11 Nov. 2011

Firstpage

1

Lastpage

5

Abstract

Signal design at the transmitter of Ultra-wideband (UWB) communications system is restricted by their equivalent isotropic radiated power (EIRP) criterion rather than the total transmitted power constraints. This paper investigates three schemes based on antenna selection, scaled eigen-beamforming, and the soft-clipping-based method, respectively. By analyzing signal-to-noise power ratio (SNR) of three schemes mentioned above, this paper proposes a novel combination of the three methods to further improve the BER performance while obeying EIRP criterion. Finally, simulation results are presented to verify the proposed scheme.

Keywords

array signal processing; eigenvalues and eigenfunctions; error statistics; microwave antennas; ultra wideband communication; BER; EIRP constrained UWB systems; antenna selection; equivalent isotropic radiated power criterion; frequency 3.168 GHz to 10.560 GHz; scaled eigenbeamforming; signal design; signal-to-noise power ratio analysis; soft-clipping-based method; total transmitted power constraints; transmit beamforming scheme; transmitter; ultrawideband communication system; Array signal processing; Bit error rate; Receiving antennas; Signal to noise ratio; Transmitting antennas; Vectors; BER; EIRP; UWB; beamforming;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Signal Processing (WCSP), 2011 International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4577-1009-4

Electronic_ISBN

978-1-4577-1008-7

Type

conf

DOI

10.1109/WCSP.2011.6096726

Filename

6096726