Realistic Performance of HSDPA Evolution 64-QAM in Macro-Cell Environment

Author

Saadani, Ahmed ; Landre, Jean-Baptiste

Author_Institution

Orange Labs., Issy-Les-Moulineaux

fYear

2009

fDate

26-29 April 2009

Firstpage

1

Lastpage

5

Abstract

The HSDPA system evolution introduces new modulation and coding schemes (MCSs) that use 64 QAM modulation in order to increase the maximum achievable throughput. We propose in this work to evaluate with a realistic approach the new mobile categories performance in macro-cell environments. This approach is based on link level simulations and drive test measurements. By considering a classic network configuration and using the LMMSE equalizer with receiver diversity, we show that there is no throughput gain compared to Release 5 MCSs using 16-QAM modulation. However, interesting throughput enhancements are obtained when the base station increases its transmitted power to 40 Watt.

Keywords

diversity reception; least mean squares methods; quadrature amplitude modulation; radio receivers; HSDPA system; LMMSE equalizer; QAM; coding schemes; drive test measurements; link level simulations; macro-cell environment; quadrature amplitude modulation; receiver diversity; Base stations; Downlink; Equalizers; Fading; Modulation coding; Multiaccess communication; Multiple access interference; RAKE receivers; Testing; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2009. VTC Spring 2009. IEEE 69th

Conference_Location

Barcelona

ISSN

1550-2252

Print_ISBN

978-1-4244-2517-4

Electronic_ISBN

1550-2252

Type

conf

DOI

10.1109/VETECS.2009.5073826

Filename

5073826