Performance modeling of video-on-demand systems in broadband networks

Wong, E.W.M.; Chan, Sammy

doi:10.1109/76.931111

Cited by 16 publications

(1 citation statement)

References 6 publications

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“…It concentrates on deriving the obstructive likelihood and the bandwidth price (on the completely associated central web) provided by the efficiency of video servers. Other measures of performance, like the continuous facility reply postponement, the number of needed video buffers, and the needed network efficiency were not treated in their research [7]. Different issues about the security aspect of broadband technology were considered in [8], where a comparison between 802.11 (Wi-Fi) and 802.16 (WiMAX) wireless networks was carried out based on frequency, band, coverage, security, radio technology, modulation, data rates, and others.…”

Section: Wireless Fidelity (Wi-fi) Broadband Network Technology Has C...mentioning

confidence: 99%

Characteristic analysis of queue theory in Wi-Fi applications using OPNET 14.5 modeler

Najim¹,

Mansour

Abbas

2022

EEJET

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Wireless Fidelity (Wi-Fi) broadband network technology has created great influence in the evolution of broadband wireless networks that are anticipated to progress regarding broadband speed and coverage. Several Wi-Fi hotspots are available everywhere, making it a medium of internet access that is easier to use compared to a local area network (LAN). However, the internet being the best effort network doesn’t provide the required Quality of Service (QoS) and there is no differentiation of service traffic. The chief aim of the current paper is to study the operation of the three organizing mechanisms: First-In, First-Out (FIFO) method – the standard method of network implementation to process the packets one by one as it arrives, Priority Queuing (PQ) and Weighted Fair Queuing (WFQ) whereas PQ and WFQ classify the types of traffic based on service priority. In addition, WFQ assigns fair weight to each service on multiple traffic classes like video conferencing, Voice over Internet Protocol (VoIP), and File Transfer Protocol (FTP), using Telkom ST3’s Wi-Fi network. This study applies four different scenarios: the first scenario applies the methods without any queuing discipline; the second scenario implements the methods with FIFO; the third scenario carries out the methods with PQ and the last scenario applies the methods with WFQ. The studies have shown that “end-to-end packet delay and packet delay variation for VoIP in the WFQ scenario” is good when compared to other queuing mechanisms with values of 171.717 ms and 0.977 ms, respectively. In the case of videotape conferencing also, the performance is better in the case of WFQ with values of 32.495 ms and 7.207 ms, correspondingly, since the WFQ has a “bandwidth allocation” tailored to the requirements

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Section: Wireless Fidelity (Wi-fi) Broadband Network Technology Has C...mentioning

confidence: 99%