NDLI: Dual Antenna LMMSE Equalization in the Presence of Correlated Interference using Bad Urban Channel Data in HSDPA Multicode Transmission

Content Provider	IEEE Xplore Digital Library
Author	Mattila, J. Nurmela, V.
Copyright Year	2005
Description	Author affiliation: Nokia Res. Center, Helsinki (Mattila, J.; Nurmela, V.)
Abstract	This paper discusses WCDMA mobile terminal receivers that employ dual antenna LMMSE equalization in high speed downlink packet access (HSDPA) multicode transmission. The strong correlated inter-cell interference is a major concern for a mobile terminal in realistic cellular environments. In this paper the channel characteristics of the serving and interfering base stations are taken into account using the "bad urban" channel data measured simultaneously from several base stations. This enables us to verify how robust the receiver algorithms are against the single dominant correlated interference source. The considered receiver algorithms include two versions of LMMSE chip-equalizers that are compared against the MRC-RAKE receiver enhanced with finger-specific interference weighting. The simulation results demonstrate that the considered LMMSE chip-equalizers are robust solutions in the bad urban channel environment. At the critical region near the cell edge, performance differences between the space-time algorithms can be however noticed, depending on the type of the correlation matrix construction. We also show how the measured data can be utilized in the link performance analysis
Starting Page	86
Ending Page	90
File Size	3745389
Page Count	5
File Format	PDF
ISBN	0780392833
DOI	10.1109/ICICS.2005.1689010
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-12-06
Publisher Place	Thailand
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Transmitting antennas Interference Multiaccess communication RAKE receivers Base stations Semiconductor device measurement Robustness Mobile antennas Receiving antennas Downlink
Content Type	Text
Resource Type	Article

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