Linear interference suppression in MIMO communication for WCDMA downlink

Author

Ylioinas, Jari ; Hooli, Kari ; Kiiskilä, Kai ; Juntti, Markku

Author_Institution

Centre for Wireless Commun., Oulu Univ., Finland

Volume

2

fYear

2005

fDate

30 May-1 June 2005

Firstpage

831

Abstract

A multiple transmit and receive antennas with spatial multiplexing are planned for wideband code division multiple access (WCDMA) systems. Thus, multiple-access interference (MAI) and inter-antenna interference (IAI) have to be mitigated. In this paper, a new linear receiver applicable for downlink employing long scrambling code is presented and compared to known ones. These receivers equalize the channel and, thus, suppress MAI. Also IAI is mitigated by equalizing over the receive antennas. The proposed receiver is shown to provide a good performance-complexity trade-off for practical WCDMA terminal receivers.

Keywords

MIMO systems; antenna arrays; broadband networks; code division multiple access; equalisers; interference suppression; least mean squares methods; radio links; radiofrequency interference; wireless channels; MIMO communication; WCDMA downlink; interantenna interference; linear interference suppression; multiple receive antennas; multiple transmit antennas; multiple-access interference; wideband code division multiple access systems; Antennas and propagation; Code division multiplexing; Downlink; Equalizers; Interference suppression; MIMO; Multiaccess communication; Multiple access interference; Receiving antennas; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2005. VTC 2005-Spring. 2005 IEEE 61st

ISSN

1550-2252

Print_ISBN

0-7803-8887-9

Type

conf

DOI

10.1109/VETECS.2005.1543421

Filename

1543421