Performance of enhanced proportional fair scheduling in HSDPA for multimedia service streaming

Li, Wei; Gulliver, T. Aaron

doi:10.1109/pacrim.2009.5291352

Cited by 1 publication

(1 citation statement)

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“…(2) Guaranteed Bit Rate (GBR); and (3) Discard Time (DT). Also, we will categorize the media service types into Conversational, Streaming, Interactive and Background services by SIP priority upon the sensitivity level of services on the delay and diverse media service flow applications (Dixit et al, 2002;Li & Aaron Gulliver, 2009). The fundamental characteristics and application examples of various service types are summarized in Table 1.…”

Section: Retransmitting and Scheduling Improvements In Hsdpamentioning

confidence: 99%

QPF Scheduling Scheme for Performance Improvements of Integrated Multimedia Applications Over 3.5G Network

Yang¹,

Lin²,

Hsieh³

2011

Proceedings of the 13th International Conference on Enterprise Information Systems

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IMS can provide full IP technology platform which combines information and communications technologies to achieve the objectives of integrated multimedia service. In IMS, SIP is introduced to transmit session control signal. Currently, the session transmission time of SIP is affected by wireless channel bandwidth, Frame Error Rate (FER), message exchange volume, retransmission mechanism and other factors. In order to effectively reduce the delay time for session transmission, we did revise conventional MAC-hs scheduling algorithm (i.e. PF) and propose QoS-based Proportional Fairness algorithm, called QPF, to enhance the session setup on SIP with channel performance of wireless communication. We perform simulations with comparisons on two KPIs of Delay and Throughput between PF and QPF schemes, by using NS-2 software tool under various multimedia applications, such as VoIP, VoD and Web. The simulation results indicate that QPF lowers 20% for VoIP delay and obtains 8.19% more VoIP Throughput than PF. The QPF performance for VoD delay can be enhanced by 11.53%, the Throughput is increased by 8.05%. Also, the delay for Web of QPF can be improved by 28.58%, and the Throughput is enhanced by 25.25%. Consequently, the proposed QPF can enhance transmission performance and obtain a higher utilization of system resources for various multimedia applications in wireless network.

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Section: Retransmitting and Scheduling Improvements In Hsdpamentioning

confidence: 99%