NDLI: MMSE equalization for UMTS HSDPA

Content Provider	IEEE Xplore Digital Library
Author	Love, R. Stewart, K. Bachu, R. Ghosh, A.
Copyright Year	2004
Description	Author affiliation: Motorola Personal Commun. Sector, Libertyville, IL, USA (Love, R.; Stewart, K.; Bachu, R.)
Abstract	The impact of 'advanced' mobile receivers incorporating dual-port antenna diversity and chip-rate equalization is assessed in terms of UMTS Release-5 high speed downlink packet access (HSDPA) link and system throughput. The addition of a second antenna port to the RAKE receiver increased the link-level throughput under 3GPP RAN WG4 test conditions by 25-100%, while a chip-rate minimum mean square error (MMSE) equalizer increased throughput by approximately the same amount for the time-dispersive (Pedestrian-B) channel. Assuming ideal channel estimation, the improvement in sector throughput was between 25-90% depending on the receiver configuration. Neglecting TCP, user throughput increased 50 to 100% when either receives diversity or MMSE equalization was applied, with the throughput increase becoming 100 to 200% for the dual-port MMSE case. When TCP was included, however, user throughput improvement reduced to 20% (MMSE equalizer), 33% (dual-port RAKE) and 45% (dual-port MMSE) respectively for the same system load.
Starting Page	2416
Ending Page	2420
File Size	539888
Page Count	5
File Format	PDF
ISBN	0780379543
ISSN	10903038
DOI	10.1109/VETECF.2003.1285963
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-10-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	3G mobile communication Multiaccess communication Throughput RAKE receivers Receiving antennas Equalizers Mobile antennas Diversity methods Downlink Fading
Content Type	Text
Resource Type	Article

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