Understanding VoIP from Backbone Measurements

Birke, Robert; Mellia, Marco; Petracca, Michele; Rossi, Dario

doi:10.1109/infcom.2007.235

Cited by 39 publications

(44 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, the total capacity for this voice network is 30 GB/s. Also according to typical values reported in (Birke et al, 2007;Ramachandran and Beeram, 2009) the mean call duration, 1/µ, is 2 min., and with voice compression coding algorithm G.729 the total bandwidth required to transmit each voice over an IP based network would be 24 kb/s. While other codecs could be used, this gives a bandwidth midway between the older G.711 codec (likely to be less used by 2016) and other more recent low-bandwidth codecs.…”

Section: Voice Modelmentioning

confidence: 69%

“…This can be done once the mean flow duration of each traffic type and the time between each updated ∆t are known. Following measurements reported in the literature, we use mean durations of voice, YouTube, web and P2P flows as 2, 3, 0.033 and 266 minutes respectively (Birke et al, 2007;Zinka et al, 2009;Brownlee and Claffy, 2002;Steiner et al, 2009). Then following the traffic models described in Section 4 the number of FID required can be determined for each traffic type giving the results shown in Table 1.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Scalability of information centric networking using mediated topology management

Alzahrani

Reed

Riihijärvi

2015

Journal of Network and Computer Applications

View full text Add to dashboard Cite

Information centric networking is a new concept that places emphasis on the information items themselves rather than on where the information items are stored. Consequently, routing decisions can be made based on the information items rather than on simply destination addresses. There are a number of models proposed for information centric networking and it is important that these models are investigated for their scalability if we are to move from early prototypes towards proposing that these models are used for networks operating at the scale of the current Internet. This paper investigates the scalability of an ICN system that uses mediation between information providers and information consumers using a publish/subscribe delivery mechanism. The scalability is investigated by extrapolating current IP traffic models for a typical national-scale network provider in the UK to estimate mediation workload. The investigation demonstrates that the mediation workload for route determination is on a scale that is comparable to, or less than, that of current IP routing while using a forwarding mechanism with considerably smaller tables than current IP routing tables. Additionally, the work shows that this can be achieved using a security mechanism that mitigates against maliciously injected packets thus stopping attacks such as denial of service that is common with the current IP infrastructure.

show abstract

Section: Voice Modelmentioning

confidence: 69%

Section: Resultsmentioning

confidence: 99%

Scalability of information centric networking using mediated topology management

Alzahrani

Reed

Riihijärvi

2015

Journal of Network and Computer Applications

View full text Add to dashboard Cite

show abstract

“…The probe node is based on high-end PCs running Linux, and has been installed in a PoP located in Torino, Italy. The first bytes of the packet payload are exposed to the Tstat [13] analyzer, that identifies the application generating each packet (see [10], [11] for details). We therefore distinguish the traffic in the following classes,…”

Section: Measurement Methodologymentioning

confidence: 99%

“…After having investigated VoIP [10] and IPTV [11] traffic in isolation, in this paper, we present, to the best of our knowledge, the first extended set of measurement results collected via passive monitoring of a mixture of data/voice/video IP traffic. Real traffic traces are collected from an ISP provider in Italy, called FastWeb [12], which is the main broadband telecommunication company in Italy, offering telecommunication services to more than 5 millions of families, with 1 million of subscribers (11% of market share).…”

Section: Introductionmentioning

confidence: 99%

Traditional IP measurements: What changes in a today multimedia IP network

Ciullo

Mellia

Meo

2008

2008 4th International Telecommunication Networking Workshop on QoS in Multiservice IP Networks

View full text Add to dashboard Cite

Abstract-In this paper we present measurement results collected from real traces on the network of FastWeb, an Italian ISP which is the main broadband telecommunication company in Italy. The network relies on a fully IP architecture and delivers to the user data, VoIP and IPTV services over a single broadband connection. The aims of this work are the evaluation of traditional measurement indexes in a novel network environment with a mixture of traffic generated by various services and the identification of possible changes of the traffic properties due to this traffic mixture.Our measurement campaign, based on passive techniques, provides traffic characterization at both the packet and the connection/flow levels and focuses on time evolution, distributions, long range dependence and periodicity properties. We discover that the main characteristics of data traffic are kept unmodified, showing LRD properties both at the packet and flow levels. VoIP and IPTV traffic instead presents periodicities of the packet arrival process, due to periodicity of the sources. Considering the VoIP flow arrival process, the traditional Markovian assumption still holds true.

show abstract

“…Fig. 5 presents the MOS probability distribution for a VoIP network based on experimental data from [1]. …”

Section: Determining Ir Q Based On Historical Statistical Data On Camentioning

confidence: 99%

On steganography in lost audio packets

Mazurczyk

Lubacz

Szczypiorski

2011

Security Comm Networks

View full text Add to dashboard Cite

Abstract. The paper presents a new hidden data insertion procedure based on estimated probability of the remaining time of the call for steganographic method called LACK (Lost Audio PaCKets steganography). LACK provides hidden communication for real-time services like Voice over IP. The analytical results presented in this paper concern the influence of LACK's hidden data insertion procedures on the method's impact on quality of voice transmission and its resistance to steganalysis. The proposed hidden data insertion procedure is also compared to previous steganogram insertion approach based on estimated remaining average call duration.

show abstract

Understanding VoIP from Backbone Measurements

Cited by 39 publications

References 11 publications

Scalability of information centric networking using mediated topology management

Scalability of information centric networking using mediated topology management

Traditional IP measurements: What changes in a today multimedia IP network

On steganography in lost audio packets

Contact Info

Product

Resources

About