A multiple antennas Rake receiver with equalization in time-domain for UWB communications

Author

Ping´an, Li ; Ting, Chen ; Kewen, Liu

Author_Institution

Wuhan Univ. of Technol., Wuhan

fYear

2007

fDate

16-17 Aug. 2007

Firstpage

17

Lastpage

21

Abstract

In this paper, a new Rake receiver of the Ultra-wide band (UWB) system with multiple receive antennas is proposed. To economize the system resource, an antenna selection scheme is used. For each selected antenna, the maximal ratio RAKE combination is applied to the multi-path signals. The outputs corresponding to all selected antennas are then combined according to the minimum mean square error (MMSE) criterion. Furthermore, we designed a MMSE equalizer in the time-domain to effectively eliminate the inter-symbol interference. The joint utilization of the antenna selection, RAKE and equalization schemes in the receiver gives the presented system superior performance compared with the existing UWB receivers. Simulation examples based on IEEE 802.15.3a channel model are given.

Keywords

antennas; equalisers; multipath channels; radio receivers; ultra wideband communication; IEEE 802.15.3a channel model; MMSE equalizer; UWB communications; antenna selection scheme; maximal ratio RAKE combination; minimum mean square error criterion; multipath signals; multiple receive antennas; time-domain equalization; Equalizers; Fading; Interference elimination; Mean square error methods; Multipath channels; RAKE receivers; Receiving antennas; Time domain analysis; Ultra wideband antennas; Ultra wideband communication; MMSE-antenna diversity; MMSE-equalizer; Rake receiver; UWB;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2007 International Symposium on

Conference_Location

Hangzhou

Print_ISBN

978-1-4244-1045-3

Electronic_ISBN

978-1-4244-1045-3

Type

conf

DOI

10.1109/MAPE.2007.4393572

Filename

4393572