Capacity assessment for UTRA

Author

Ortigoza-Guerrero, Lauro ; Aghvami, A.H.

Author_Institution

Centre for Telecommun. Res., King´´s Coll., London, UK

Volume

2

fYear

1999

fDate

36342

Firstpage

1653

Abstract

Capacity evaluation of the downlink of two systems, hybrid WB-TD/CDMA using asymmetric time division duplex and WB-CDMA, is presented. These systems correspond to the FRAMES Project Proposal Mode 1 and Mode 2 for UTRA (UTRA TDD and UTRA FDD mode, respectively). Cell capacity in Erl/carrier/cell and spectrum efficiency in kbps/MHz/cell are assessed for five different circuit switched services in a 5 MHz bandwidth. Two different resource allocation strategies are considered in the evaluation of the TD/CDMA-TDD system, classic fixed channel assignment (FCA) and simple dynamic channel allocation (SDCA). For WB-CDMA, only FCA is used. The blocking and the forced termination probabilities are presented and compared for the WB-TD/CDMA-TDD system using FCA and SDCA

Keywords

broadband networks; cellular radio; channel allocation; circuit switching; code division multiple access; multiuser channels; network interfaces; probability; radio access networks; radio links; research initiatives; 5 MHz; FCA; FDD mode; FRAMES Project; SDCA; TD/CDMA-TDD system; TDD mode; UMTS Radio Interface; UMTS Terrestrial Radio Access; UTRA; WB-CDMA; asymmetric time division duplex; bandwidth; blocking probability; capacity assessment; cell capacity; circuit switched services; downlink; fixed channel assignment; forced termination probability; hybrid WB-TD/CDMA; mobile radio channel sharing; resource allocation; simple dynamic channel allocation; spectrum efficiency; 3G mobile communication; Bandwidth; Channel allocation; Downlink; Educational institutions; Multiaccess communication; Proposals; Switching circuits; Telecommunication standards; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1999 IEEE 49th

Conference_Location

Houston, TX

ISSN

1090-3038

Print_ISBN

0-7803-5565-2

Type

conf

DOI

10.1109/VETEC.1999.780682

Filename

780682