Generalised multiuser detection in TD-CDMA

Author

Jones, Alan E. ; Wong, Shin Horng

Author_Institution

IPWireless, Chippenham, UK

Volume

3

fYear

2005

fDate

30 May-1 June 2005

Firstpage

1748

Abstract

We describe how intercell interference can be mitigated in the uplink of UTRA TDD (TD-CDMA). The intercell interference mitigation technique is based on reusing existing multiuser detector architectures that are derived from linear receivers. Through simulation results we determine the efficiency of the scheme when operating under different channel conditions, with different numbers of users and different levels of intercell interference. Using a simple TD-CDMA uplink capacity equation we demonstrate the potential performance improvement Finally, we present experimental results from a TD-CDMA system that has intercell interference mitigation enabled.

Keywords

cellular radio; code division multiple access; multiuser detection; radiofrequency interference; telecommunication channels; time division multiple access; time division multiplexing; TD-CDMA; UTRA TDD; intercell interference; interference mitigation; multiuser detection; uplink capacity equation; Additive noise; Additive white noise; Covariance matrix; Detectors; Downlink; Equalizers; Frequency; Interference; Multiuser detection; Throughput;

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.2005.1543621

Filename

1543621