Posted on

Download e-book for iPad: Management of Speech and Video Telephony Quality in by Blażej Lewcio

By Blażej Lewcio

ISBN-10: 331902101X

ISBN-13: 9783319021010

ISBN-10: 3319021028

ISBN-13: 9783319021027

This booklet indicates how networking study and caliber engineering could be mixed to effectively deal with the transmission caliber whilst speech and video telephony is brought in heterogeneous instant networks. Nomadic use of companies calls for clever administration of ongoing transmission, and to make the simplest of obtainable assets many basic trade-offs needs to be thought of. community insurance as opposed to throughput and reliability of a connection is one key element, potency as opposed to robustness of sign compression is one other. despite the fact that, to effectively deal with companies, user-perceived caliber of expertise (QoE) in heterogeneous networks needs to be identified, and the conception of caliber alterations needs to be understood. those concerns are addressed during this ebook, particularly concentrating on the notion of caliber alterations as a result of switching among varied networks, speech and video formats, and encoding bit premiums in the course of energetic calls.

Show description

Read or Download Management of Speech and Video Telephony Quality in Heterogeneous Wireless Networks PDF

Best data processing books

Prosody in Speech Understanding Systems by Ralf Kompe PDF

Speech expertise, the automated processing of (spontaneously) spoken language, is referred to now to be technically possible. it is going to turn into the main instrument for dealing with the confusion of languages with purposes together with dictation structures, info retrieval by way of spoken conversation, and speech-to-speech translation.

Learning Cassandra for Administrators by Vijay Parthasarathy PDF

Optimize high-scale information by way of tuning and troubleshooting utilizing Cassandra assessment set up and arrange a multi datacenter Cassandra Troubleshoot and song Cassandra Covers CAP tradeoffs, physical/hardware barriers, and is helping the magic track your kernel, JVM, to maximise the functionality contains defense, tracking metrics, Hadoop configuration, and question tracing intimately Apache Cassandra is a hugely scalable open resource NoSQL database.

ICTs and the Millennium Development Goals: A United Nations - download pdf or read online

This publication makes an attempt to create information in regards to the UN-MDGs and the way a number of ICT should be harnessed to entice various demographics. present empirical proof means that MDG wisdom is comparatively low quite in built international locations, and that the degrees of MDG understanding range significant throughout socioeconomic variables or demographics from United international locations standpoint.

Download e-book for kindle: New Frontiers in the Study of Social Phenomena: Cognition, by Federico Cecconi

This e-book reports social phenomena in a brand new means, through making really apt use of desktop know-how. The publication addresses the full spectrum of vintage experiences in social technological know-how, from experiments to the computational types, with a multidisciplinary strategy. The e-book is appropriate if you are looking to get an image of what it ability to do social study at the present time, and in addition to get a sign of the key open concerns.

Additional info for Management of Speech and Video Telephony Quality in Heterogeneous Wireless Networks

Example text

1 Raw Signal Processing As already mentioned in the general overview, the raw signal in the application is routed through a signal bridge to several modules. Many of them are used as a signal output. For example, the audio signal can be played-out through the sound card, and the video signal can be displayed through a number of graphical user interfaces (GUIs). Any GUI that is developed as a shared-object library and that matches the API of the test client can be dynamically loaded, which is a feature of the application that enables to flexibly test various user interfaces.

3 MOS when the proposed technique was used. 001). Further analysis of the test material revealed that in 90 % of the test cases when the proposed switching technique was used, the playback interruption could be avoided. For illustration, a comparison of the play-out timeline that was measured at the output of the jitter buffer for both changeover techniques is depicted in Fig. 6. It is shown, that the baseline changeover technique always interrupted the signal playback, which is indicated by an abruptly ending status curve of the first buffer and by the initialization period that is observed before data from the new buffer is forwarded.

In: Proceedings of the IEEE global telecommunications conference (GLOBECOM). San Antonio, pp 1944–1949 5. Lewcio B, Möller S (2011) A testbed for QoE-based multimedia streaming optimization in heterogeneous wireless networks. In: Proceedings of IEEE international conference on signal processing and communication systems (ICSPCS). Honolulu, pp 1–9 6. Vidales P, Kirschnick N, Steuer F, Lewcio B, Wältermann M, Möller S (2008) Mobisense testbed: merging user perception and network performance. In: Proceedings of international ICST conference on testbeds and research infrastructures for the development of networks and communities (TRIDENTCOM).

Download PDF sample

Management of Speech and Video Telephony Quality in Heterogeneous Wireless Networks by Blażej Lewcio

by Paul

Rated 4.17 of 5 – based on 3 votes