Title :
Downlink VoIP Support for Evolved UTRA
Author :
Fan, Yong ; Kuusela, Markku ; Lundén, Petteri ; Valkama, Mikko
Author_Institution :
Tampere Univ. of Technol., Tampere
fDate :
March 31 2008-April 3 2008
Abstract :
This paper presents the design of VoIP optimized packet scheduler and performance simulations for supporting voice services over downlink evolved UTRA. An efficient packet scheduler taking into account the traffic characteristics and adopting optimal resource allocation is proposed. Results are given for different control channel number settings and packet bundling options. Simulation results show that downlink EUTRA VoIP capacity is mainly limited by control channel number with full dynamic scheduling and packet bundling can help to increase capacity within the control channel limitation. In summary, with packet bundling technique, around 378 and 488 users per sector can be supported in 5 MHz bandwidth with 6 and 8 control channels respectively.
Keywords :
Internet telephony; packet radio networks; performance evaluation; resource allocation; scheduling; telecommunication services; telecommunication traffic; control channel; downlink VoIP support; evolved UTRA; optimal resource allocation; packet bundling; packet scheduler; performance simulations; radio resource management; traffic characteristics; voice services; Circuit simulation; Communication system control; Communications Society; Downlink; Frequency domain analysis; Packet switching; Propagation delay; Resource management; Scheduling algorithm; Switching circuits;
Conference_Titel :
Wireless Communications and Networking Conference, 2008. WCNC 2008. IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-1997-5
DOI :
10.1109/WCNC.2008.344
