HSDPA Mimo Performance with Turbo Equalizer

Author

Lampinen, Marko ; Haikola, Ville

Author_Institution

Nokia, Oulu

fYear

2006

fDate

11-14 Sept. 2006

Firstpage

1

Lastpage

5

Abstract

In this paper, we study the effect of receiver structures to multiple-input multiple-output (MIMO) performance in a simplified model of high speed downlink packet access (HSDPA) system, which is a packet enhancement to the third generation wideband code division multiple access (WCDMA) mobile communication system. Both 2times2 open loop MIMO and traditional receive diversity are studied. In this study a chip equalizer is used as a baseline receiver due to its simplicity and performance of idealistic turbo equalizers is compared against it. Turbo equalization is an iterative approach on joint detection and channel decoding. It can be observed that chip equalizer is efficient for the receive diversity transmission but large performance improvements are obtained by using the turbo equalizer, if MIMO transmission is used. In addition, canceling only the spatial part of the interference provides relatively good performance when compared to full space-time cancellation

Keywords

3G mobile communication; MIMO systems; channel coding; code division multiple access; diversity reception; equalisers; HSDPA MIMO performance; baseline receiver; channel decoding; chip equalizer; high speed downlink packet access system; multiple-input multiple-output performance; open loop MIMO; packet enhancement; receive diversity transmission; receiver structures; space-time cancellation; third generation mobile communication system; turbo equalizer; wideband code division multiple access system; Diversity methods; Downlink; Equalizers; Interference; Iterative methods; MIMO; Mobile communication; Multiaccess communication; Receiving antennas; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2006 IEEE 17th International Symposium on

Conference_Location

Helsinki

Print_ISBN

1-4244-0329-4

Electronic_ISBN

1-4244-0330-8

Type

conf

DOI

10.1109/PIMRC.2006.254428

Filename

4022520