000			03478nam a22004335i 4500
001			u374731
003			SIRSI
005			20160812084249.0
007			cr nn 008mamaa
008			110111s2011 gw | s |||| 0|eng d
020			_a9783642143304 _9978-3-642-14330-4
040			_cMX-MeUAM
050		4	_aTK1-9971
082	0	4	_a621.382 _223
100	1		_aVerma, Pramode K. _eauthor.
245	1	0	_aVoice over IP Networks _h[recurso electrónico] : _bQuality of Service, Pricing and Security / _cby Pramode K. Verma, Ling Wang.
264		1	_aBerlin, Heidelberg : _bSpringer Berlin Heidelberg, _c2011.
300			_aX, 130 p. _bonline resource.
336			_atext _btxt _2rdacontent
337			_acomputer _bc _2rdamedia
338			_aonline resource _bcr _2rdacarrier
347			_atext file _bPDF _2rda
490	1		_aLecture Notes in Electrical Engineering, _x1876-1100 ; _v71
505	0		_aIntroduction -- Voice over Internet Protocol -- Traffic Characterization -- Impact of Bounded Delays on Resource Consumption in Packet Switched Networks with M/M/1 Traffic -- Impact of Bounded Delay on Resource Consumption-M/D/1 Model -- Impact of Bounded Jitter on Resource Consumption in Multi-hop Networks -- Cost and Quality in Packet Switched Networks: An Abstract Approach -- Cumulative Impact of Inhomogeneous Channels on Risk -- A Network Based Authentication Scheme for VoIP -- Conclusions and Future Work.
520			_aThis book addresses three important issues in VoIP networks: Quality of Service, pricing and security. In addressing Quality of Service (QoS), it introduces the notion of delay not exceeding an upper limit, termed the bounded delay, to measure the Quality of Service in VoIP networks. Queuing models are introduced to measure performance in terms of bounded delays. Closed form solutions relating the impact of bounding delays on throughput of VoIP traffic are provided. Traffic that exceeds the delay threshold is treated as lost throughput. The results addressed can be used in scaling resources in a VoIP network for different thresholds of acceptable delays. Both single and multiple switching points are addressed. The same notion and analysis are also applied on jitter, another important indicator of the VoIP QoS This book also develops a pricing model based on the Quality of Service provided in VoIP networks. It presents the impact of quality of VoIP service demanded by the customer on the transmission resources required by the network using an analytical approach. In addition, it extends and applies the delay throughput analysis developed for VoIP networks in assessing the impact of risks constituted by a number of transportation channels, where the risk associated with each channel can be quantified by a known distribution. Finally, the book explores areas for future research that can be built on the foundation of research presented.
650		0	_aEngineering.
650		0	_aTelecommunication.
650	1	4	_aEngineering.
650	2	4	_aCommunications Engineering, Networks.
700	1		_aWang, Ling. _eauthor.
710	2		_aSpringerLink (Online service)
773	0		_tSpringer eBooks
776	0	8	_iPrinted edition: _z9783642143298
830		0	_aLecture Notes in Electrical Engineering, _x1876-1100 ; _v71
856	4	0	_zLibro electrónico _uhttp://148.231.10.114:2048/login?url=http://link.springer.com/book/10.1007/978-3-642-14330-4
596			_a19
942			_cLIBRO_ELEC
999			_c202611 _d202611