Less Impact Better Service (LIBS)

Mamatas, Lefteris; Tsaoussidis, Vassilis

doi:10.1007/s12243-010-0175-1

Cited by 5 publications

(2 citation statements)

References 19 publications

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“…The LIBS scheme [14][15] was recently developed; to prioritize some traffics (for example VoIP) this scheme considers only the size of the packet when classifying the packets into different traffic classes. Similar to LIBS, Drop-SwD seeks to provide a QoS application-oriented strategy designed for producing a dynamic and differentiated service by considering the requirements of VoIP services.…”

Section: Related Workmentioning

confidence: 99%

User-Level Quality Assessment of a Delay-Aware Packet Dropping Scheme for VoIP

Álvarez-Flores

Ramos-Muñoz

Navarro-Ortiz

et al. 2011

NPA

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To deal with congestion control in internet protocol (IP) networks, different active queue management schemes have been successfully proposed. However, many of these schemes do not take into consideration the particular Voice over Internet Protocol (VoIP) requirements, thereby potentially penalizing this traffic. In this paper, we propose and evaluate a dropping packet selection algorithm for queue management schemes. This algorithm, called Drop-SwD, protects VoIP traffic without affecting other User Datagram Protocol (UDP) and Transmission Control Protocol (TCP) traffic. Additionally, to preserve the quality of the VoIP service, the proposed algorithm selects the lowest quality packets (with less impact on the subjective quality) to be dropped.The application of the algorithm in different active queue management schemes is evaluated using objective and subjective quality metrics and intelligibility metrics as well. As a result, we show that Drop-SwD improves the final quality of the voice packets' flow, without degrading the performance of other traffic class, with respect to the packet dropping schemes of reference.

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Section: Related Workmentioning

confidence: 99%

User-Level Quality Assessment of a Delay-Aware Packet Dropping Scheme for VoIP

Álvarez-Flores

Ramos-Muñoz

Navarro-Ortiz

et al. 2011

NPA

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“…Qos parameters include data rate, delay, jitter, ordered delivery, loss, error rates (Steinmetz and Nahrstedt, 2004). Service principle called Less Impact Better Service (LIBS) (Mamatas and Tsaoussidis, 2010) leads to a novel service differentiation method, namely Sizeoriented Dropping Policy (SDP), which uses packet size to categorize time-sensitive from delay-tolerant flows and prioritize packet dropping probability, accordingly. A significant increase on the perceived quality of real-time applications was perceived.…”

Section: Introductionmentioning

confidence: 99%

Improving Quality of Service in Ip Networks for Multimedia Applications With Optimal Fragmentation

Rani¹

2014

Journal of Computer Science

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The tremendous increase of Internet users and the wide ranging need to support both multimedia traffic and other traffic leads to service differentiation schemes. Multimedia applications have uncompromising and strict deadlines and the packets are worthless if they arrive late than their associated deadlines. The aim of the proposed system is to improve the quality of service by increasing the number of multimedia packets that reaches the destination before their associated deadline without affecting the fairness of other data. The proposed algorithm estimates the optimal packet size for transmission and puts forward a Service Differentiation scheme that drops the packets based on the size and deadline of the packets. Packet loss percentage is observed to be reduced in the proposed system.

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An enhanced router based queuing policy providing better fairness to real-time data transfers in Internet

John

Balan

2015

2015 International Conference on Circuits, Power and Computing Technologies [ICCPCT-2015]

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Forwarding and delivery in IP based internet is a best effort service. IP being a connectionless forwarding mechanism, it may drop the packets at the time of congestion. This may affect the services in internet as it is not able to deliver the packet with sufficient Quality of service (QOS).The reliability mechanism adopted by a TCP source may be successful in delivering the packet ultimately but the traffic running on UDP gets severely affected by congestion. The real-time applications running over UDP fail to meet their QOS deadlines on throughput delay and jitter. The queue management mechanisms precisely the scheduling and dropping policies should be capable of promoting real-time transfers to a fair extend without affecting the non-real-time transfers. Active queue management policies like RED based policies try to bring general fairness by allocating bandwidth fairly to all the flows. But, even such schemes cannot provide a fair treatment to real-time flows which send small sized packets at regular intervals .The paper analyses the AQM mechanisms and its ability to promote real-time data transfers. The paper also proposes a new dropping policy fairRED which is inspired from RED but show better fairness in dropping packets, ultimately promoting the real-time data transfers.

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Less Impact Better Service (LIBS)

Cited by 5 publications

References 19 publications

User-Level Quality Assessment of a Delay-Aware Packet Dropping Scheme for VoIP

User-Level Quality Assessment of a Delay-Aware Packet Dropping Scheme for VoIP

Improving Quality of Service in Ip Networks for Multimedia Applications With Optimal Fragmentation

An enhanced router based queuing policy providing better fairness to real-time data transfers in Internet

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