QoS evaluation of multiservice applications over integrated satellite-terrestrial networks
This paper presents the QoS performance evaluation studies of IP over integrated terrestrial and Next Generation Satellite Network (NGSN) for HTTP web, file transfer, video streaming and VoIP applications. We compare the QoS parameters (e.g. delay, loss ratio and throughput) of the multiservice appl...
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| Pengarang-pengarang Utama: | , , |
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| Format: | Conference or Workshop Item |
| Diterbitkan: |
2011
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| Subjek-subjek: | |
| Capaian Atas Talian: | http://eprints.uthm.edu.my/6047/ http://eprints.uthm.edu.my/6047/1/QoS_Evaluation_of_Multiservice_Applications.pdf |
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| Ringkasan: | This paper presents the QoS performance evaluation
studies of IP over integrated terrestrial and Next Generation
Satellite Network (NGSN) for HTTP web, file transfer, video
streaming and VoIP applications. We compare the QoS
parameters (e.g. delay, loss ratio and throughput) of the
multiservice applications over Ka-Sat like satellite and the ITU-R
standard Hypothetical Reference Digital Path (HRDP). We
model the multiservice applications with multiple connections,
different files sizes and connection durations variations. We
simulate the network scenario with error model for the
transmission loss environment using NS-2. A Differentiated
Services (Diffserv) queue interface is used in the terrestrial
network to regulate and differentiate the traffic flows while a
priority queue is used as the satellite on-board-processing unit
(OBP). The results showed a better top-down comparison of the
QoS parameters involved in each application service across GEO
satellite and the standard terrestrial digital data link. |
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