6533b855fe1ef96bd12afdcf

RESEARCH PRODUCT

VoIP end-to-end performance in HSPA with packet age aided HSDPA scheduling

Tapani RistaniemiKarri Ranta-ahoTao ChenGilles CharbitO. Fresan

subject

Voice over IPComputingMethodologies_SIMULATIONANDMODELINGComputer sciencebusiness.industryCode division multiple accessNetwork packetComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSReal-time computingHigh-Speed Downlink Packet Accessscheduling performance analysisData_CODINGANDINFORMATIONTHEORYScheduling (computing)Channel capacityEnd-to-end principleHSPATelecommunications linkbusinessUMTS frequency bandsComputer network

description

In this paper, we present an enhanced VoIP scheduling for the high speed downlink packet access (HSDPA) in UMTS, which takes the age of the VoIP packet into account. The downlink capacity can be significantly improved by this way, especially for shorter uplink transmission delay. In order to quantify the achievable performance improvement, we present results obtained from extensive system-level uplink and downlink simulations. Inter alia, it is shown that using the proposed scheme can lead to an increase in the downlink cell capacity of up to 16%. By applying the proposed method, the downlink performance can be improved considerably while the uplink performance remains the same, which ensures the good end-toend performance. peerReviewed

yearjournalcountryeditionlanguage
2008-09-012008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications
https://doi.org/10.1109/pimrc.2008.4699537