Adaptive digital beamforming techniques in transmission antenna arrays

Author

Yu, Shiyun ; Gong, ZhengQuan

Author_Institution

Nanjing Inst. of Telecommun. Technol., China

fYear

2004

fDate

18-21 Aug. 2004

Firstpage

207

Lastpage

210

Abstract

A transmission beamforming scheme based on recursive least squares (RLS) algorithm is presented which can be used to implement multi-beam pointing to different angles. The equivalent feed model of the antenna arrays is derived under multi-user condition by non-coherent superposition of the field and the system model of transmission arrays based on digital beamforming is established. Simulation results are also presented and prove that the scheme is effective to increase the capacity of wireless communication systems by reusing a channel among several users.

Keywords

adaptive antenna arrays; array signal processing; channel capacity; least squares approximations; recursive estimation; adaptive digital beamforming; channel reuse; equivalent feed model; multi-beam pointing; multi-user condition; noncoherent superposition; recursive least squares algorithm; transmission antenna arrays; transmission beamforming scheme; wireless communication systems; Adaptive arrays; Antenna arrays; Antenna feeds; Array signal processing; Least squares methods; Linear antenna arrays; Radio frequency; Receiving antennas; Resonance light scattering; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology, 2004. ICMMT 4th International Conference on, Proceedings

Print_ISBN

0-7803-8401-6

Type

conf

DOI

10.1109/ICMMT.2004.1411499

Filename

1411499