Title :
The effect of F-DPCH on VoIP over HSDPA Capacity
Author :
Wänstedt, Stefan ; Ericson, Mårten ; Hévizi, László ; Pettersson, Jonas ; Barta, József
Author_Institution :
Ericsson Res. Lulea
Abstract :
In WCDMA Rel. 5 HSDPA the fraction of the base station power used for signalling channel overhead is relatively large for low bit-rate services such as VoIP. Examples of such overhead are the high speed shared control channel (HS-SCCH) and the associated dedicated channel (A-DPCH). One remedy is the suggestion of using a fractional dedicated channel (F-DPCH) instead of A-DPCH. In this paper we investigate the impact of power overhead for a system with only VoIP users. The capacity is compared both theoretically and through dynamic radio network simulations. Theoretical and simulated results both show a capacity increase of around 15% when A-DPCH is exchanged by F-DPCH
Keywords :
3G mobile communication; Internet telephony; channel capacity; code division multiple access; telecommunication signalling; F-DPCH; HSDPA capacity; VoIP; WCDMA; dynamic radio network; fractional dedicated channel; signalling channel overhead; Base stations; Convergence; Costs; Delay; Internet telephony; Land mobile radio cellular systems; Multiaccess communication; Quality of service; Radio network; Speech;
Conference_Titel :
Vehicular Technology Conference, 2006. VTC 2006-Spring. IEEE 63rd
Conference_Location :
Melbourne, Vic.
Print_ISBN :
0-7803-9391-0
Electronic_ISBN :
1550-2252
DOI :
10.1109/VETECS.2006.1682847
