Combined methodology for measurement of available bandwidth and link capacity in wired packet networks

Salehin, Khondaker M.; Rojas‐Cessa, Roberto

doi:10.1049/iet-com.2009.0249

Cited by 20 publications

(10 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, the quality of an algorithm identifying the traffic requirements can be evaluated based on its correctness and accuracy [142]. Similarly important is the accuracy when it comes to the identification of the link characteristics [143], [144]. In contrast, performance and scalability, e.g.…”

Section: Converged Satellite and Terrestrial Networkmentioning

confidence: 99%

See 1 more Smart Citation

QoS Provisioning in Converged Satellite and Terrestrial Networks: A Survey of the State-of-the-Art

Niephaus

Kretschmer

Ghinea

2016

IEEE Commun. Surv. Tutorials

View full text Add to dashboard Cite

It has been widely acknowledged that future networks need to provide significantly more capacity than nowadays' ones in order to deal with the increasing traffic demands of the users. Particularly in regions where optical fiber are unlikely to be deployed due to economical constraints, this is a huge challenge. One option to address this issue is to complement existing narrow-band terrestrial networks with additional satellite connections. Satellites cover huge areas and recent developments have considerably increased the available capacity, while the cost are decreasing. However, geostationary satellite links have significantly different link characteristics than most terrestrial links, mainly due to the higher signal propagation time, which often renders them not suitable for delay intolerant traffic. This article surveys the current state-of-the-art of satellite and terrestrial network convergence. We mainly focus on scenarios in which satellite networks complement existing terrestrial infrastructures, i.e. parallel satellite and terrestrial links exist, in order to provide high bandwidth connections while ideally achieving a similar end user Quality-of-Experience as in high bandwidth terrestrial networks. Thus, we identify the technical challenges associated with the convergence of satellite and terrestrial networks and analyze the related work. Based on this, we identify four key functional building blocks, which are essential to distribute traffic optimally between the terrestrial and the satellite networks. These are the Traffic Requirement Identification function, the Link Characteristics Identification function as well as the Traffic Engineering function and the Execution function. Afterwards, we survey current network architectures with respect to these key functional building blocks and perform a gap analysis, which shows that all analyzed network architectures require adaptations to effectively support converged satellite and terrestrial networks. Hence, we conclude by formulating several open research questions with respect to satellite and terrestrial network convergence.

show abstract

Section: Converged Satellite and Terrestrial Networkmentioning

confidence: 99%

“…KPIs Individual Key Building Blocks Traffic Requirement Identification [142] accuracy correctness Link Characteristics Identification [143], [144] accuracy Path Selection [145] execution time space complexities Multipath [97] reordering link utilization QoE [30], [130] MOS QoS [146] throughput latency jitter loss…”

Section: A Architecturalmentioning

confidence: 99%

QoS Provisioning in Converged Satellite and Terrestrial Networks: A Survey of the State-of-the-Art

Niephaus

Kretschmer

Ghinea

2016

IEEE Commun. Surv. Tutorials

View full text Add to dashboard Cite

show abstract

“…A plethora of active schemes to measure link capacity has been proposed [10], [28]- [31], [37], [48]- [53]. These schemes can be coarsely classified into two categories: hop-by-hop [10], [30], [51]- [53] and specificlink [37] measurement.…”

Section: Related Work On Measurement Of Link Capacitymentioning

confidence: 99%

Scheme to Measure Packet Processing Time of a Remote Host through Estimation of End-Link Capacity

Salehin

Rojas‐Cessa

Lin

et al. 2015

IEEE Trans. Comput.

View full text Add to dashboard Cite

As transmission speeds increase faster than processing speeds, the packet processing time (PPT) of a host is becoming more significant in the measurement of different network parameters in which packet processing by the host is involved. The PPT of a host is the time elapsed between the arrival of a packet at the data-link layer and the time the packet is processed at the application layer (RFCs 2679 and 2681). To measure the PPT of a host, stamping the times when these two events occur is needed. However, time stamping at the data-link layer may require placing a specialized packet-capture card and the host under test in the same local network. This makes it complex to measure the PPT of remote end hosts. In this paper, we propose a scheme to measure the PPT of an end host connected over a single-or multiple-hop path and without requiring time stamping at the data-link layer. The proposed scheme is based on measuring the capacity of the link connected to the host under test. The scheme was tested on an experimental testbed and in the Internet, over a U.S. inter-state path and an international path between Taiwan and the U.S. We show that the proposed scheme consistently measures PPT of a host.

show abstract

“…On the other hand, if a compound probe experiences dispersion, as shown in Figure 3(b), due to cross traffic and heterogeneous link capacities of the wired links [6], the intra-packet gap might not represent the throughput of the wireless link and this adds errors in the measurement.…”

Section: B Sizing Probing Packets To Ensure Zero-dispersion Gapmentioning

confidence: 99%

Active Scheme to Measure Throughput of Wireless Access Link in Hybrid Wired-Wireless Network

Salehin

Rojas‐Cessa

2012

IEEE Wireless Commun. Lett.

View full text Add to dashboard Cite

Abstract-In this letter, we propose an active scheme to measure the download throughput of an IEEE 802.11 wireless access link in a hybrid wired-wireless network. The proposed scheme is based on sending pairs of probing packets to a wireless end host to determine the smallest and average intra-packet gaps of the probing packets that are used for the estimation of the constant dispersion gap that wireless access creates. We present experimental evaluations of the proposed scheme, and the obtained results show that the proposed scheme achieves high measurement accuracy. Furthermore, we show that the proposed scheme is able to work under the presence of cross traffic along the path.

show abstract

Combined methodology for measurement of available bandwidth and link capacity in wired packet networks

Cited by 20 publications

References 17 publications

QoS Provisioning in Converged Satellite and Terrestrial Networks: A Survey of the State-of-the-Art

QoS Provisioning in Converged Satellite and Terrestrial Networks: A Survey of the State-of-the-Art

Scheme to Measure Packet Processing Time of a Remote Host through Estimation of End-Link Capacity

Active Scheme to Measure Throughput of Wireless Access Link in Hybrid Wired-Wireless Network

Contact Info

Product

Resources

About