QoS assessment of video streams over IP networks based on monitoring transport and application layer processes at user clients

M. Masugi; T. Takuma; M. Matsuda

doi:10.1049/ip-com:20045082

QoS assessment of video streams over IP networks based on monitoring transport and application layer processes at user clients

IEE Proceedings - Communications ◽

10.1049/ip-com:20045082 ◽

2005 ◽

Vol 152 (3) ◽

pp. 335 ◽

Cited By ~ 4

Author(s):

M. Masugi ◽

T. Takuma ◽

M. Matsuda

Keyword(s):

Ip Networks ◽

Application Layer ◽

Video Streams

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Some Application Layer Protocols in IP Networks

Communication Protocols ◽

10.1007/978-3-030-50405-2_26 ◽

2020 ◽

pp. 349-363

Author(s):

Drago Hercog

Keyword(s):

Ip Networks ◽

Application Layer

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On the impact of adaptive RED in IP networks transporting H.264/MPEG-4 AVC video streams

Computers & Electrical Engineering ◽

10.1016/j.compeleceng.2011.11.015 ◽

2012 ◽

Vol 38 (1) ◽

pp. 128-139 ◽

Cited By ~ 2

Author(s):

D.P. Torres ◽

E.M.G. Fernandez ◽

E.P. Ribeiro ◽

V.A. Reguera ◽

C. de Oliveira

Keyword(s):

Ip Networks ◽

Video Streams ◽

The Impact

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Cross-Layer Optimization for Efficient Delivery of Scalable Video over WiMAX

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.855.171 ◽

2016 ◽

Vol 855 ◽

pp. 171-177 ◽

Cited By ~ 1

Author(s):

Lung Jen Wang ◽

Chiung Yun Chang ◽

Jen Yi Huang

Keyword(s):

Scalable Video ◽

Cross Layer ◽

Video Delivery ◽

Application Layer ◽

Mac Layer ◽

Video Streams ◽

Delivery Performance ◽

Cross Layer Optimization ◽

Efficient Delivery

Video delivery application over wireless network has become increasingly important in recent years. For achieving more flexible video streams transmission, the scalable extension of the H.264/AVC standard has been developed, as well as which is combined with temporal, spatial and quality scalabilities to adapt efficiently the wireless bandwidth resource. In this paper, a cross-layer optimization for robust H.264 scalable video delivery over WiMAX network is proposed. In order to obtain a better delivery performance, the proposed method is used the hierarchical B-picture approach to classify video packets into different priorities. In the cross-layer optimization, the scalable video and packet classifier are proposed at the application layer, and the packet priority and queue allocation are used at the MAC layer. Finally, it is shown by NS2 simulations that the proposed method provides more stable wireless bandwidth and also achieves a better quality of the video streaming delivery.

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A Secure Architecture for Nomadic User in IMS Network

International Journal of Mobile Computing and Multimedia Communications ◽

10.4018/jmcmc.2012010101 ◽

2012 ◽

Vol 4 (1) ◽

pp. 1-17

Author(s):

A. Abou El Kalam ◽

M. Maachaoui ◽

N. Idboufker ◽

H. Ait Lahcen ◽

A.Ait Ouahman

Keyword(s):

Ip Networks ◽

Service Access ◽

Application Layer ◽

Test Bed ◽

Simulation Test ◽

Security Vulnerabilities ◽

Signaling Mechanism ◽

Security Issues ◽

Security Challenges ◽

Access Information

The IP multimedia subsystem (IMS) is a basis for a significant new architecture which offers network operators the opportunity to expand their services, by integrating voice and multimedia communications and delivering them into new environments with new purposes. Basically, the IMS is an overlay network on top of IP layer that uses Session Initiation Protocol (SIP) as the primary signaling mechanism. SIP works at the application layer in IP networks. It is thus faced to not only the IP-networks security issues, but also to new issues which are related to the SIP protocol directly. Consequently, using IMS bears several new security challenges. This paper presents the most relevant SIP-related security vulnerabilities and threats, and the implementation and simulation test bed to experiment two versions of the SIP Asterisk software to emphasize these threats. The different security mechanisms that can be deployed to overcome the SIP security issues while putting emphasis the most important ones are discussed. Afterwards, the authors propose adaptable solutions to the SIP threats already identified for a specific service (access information from anywhere) in IMS context. Finally, conclusions are drawn and some perspectives are introduced to improve the security of multimedia applications.

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