cisco catalyst qos quality of service in campus networks
Quality of Service in IP Networks
Ngày tải lên :
06/04/2013, 11:05
... sending large packets get more
l cost of flow classification
Queue Management
3
Improving QOS in IP Networks
o IETF groups are working on proposals to provide better QOS
control in IP networks, ... Management
1
Quality of Service in IP
Networks
CH-1015 Ecublens
http://icawww.epfl.ch
Prof. Jean-Yves Le Boudec
Prof. Andrzej Duda
Prof. Patrick Thiran
LCA-ISC-I&C, EPFL
Queue Management
5
Principles ... networks, i.e., going beyond best effort to provide
some assurance for QOS
o Work in Progress includes Differentiated Services, and Integrated
Services (RSVP)
o Simple model
for sharing and
congestion...
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security & quality of service in ad hoc wireless networks
Ngày tải lên :
25/03/2014, 12:07
... of service 107
6.1 Introduction 107
6.2 Routing in mobile ad hoc networks 110
6.3 Routing with quality of service constraints 112
6.4 Quality of service routing in ad hoc networks 118
6.5 Conclusion ... with providing quality of service (QoS) in
ad hoc networks. It should be pointed out that security and quality of service
are two distinct attributes that are independent of each other in general. ... dissolving the resin covering the silicon
using fuming acid. The next step involves layout reconstruction using a systema-
tic combination of microscopy and invasive removal of covering layers. During
layout...
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Tài liệu Campus Quality of Service pdf
Ngày tải lên :
11/12/2013, 14:15
... 2000, Cisco Systems, Inc. 3
© 2000, Cisco Systems, Inc. www .cisco. com econ_387_05_010.ppt
Campus QoS
Campus QoS
Campus QoS Issues
–Prioritization (Marking and Queuing)
© 2000, Cisco Systems, Inc. ... into a priority queue on a WAN link? This ability is a key
differentiator in achieving QoS.
© 2000, Cisco Systems, Inc. 1
© 2000, Cisco Systems, Inc.
Campus
Quality of Service
© 2000, Cisco ... information about Campus QoS, refer to the following URL:
http://wwwin .cisco. com/Mkt/Training/field_training/felc/us/pre_vt /campus/ ht
ml/data_0505.htm
© 2000, Cisco Systems, Inc. 7
© 2000, Cisco...
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Quality of Service and Resource Allocation in WiMAXFig Part 1 pdf
Ngày tải lên :
21/06/2014, 05:20
...
synthesis table of the main scheduling mechanisms and highlights the main points of each
of them. Section 6 does the final consideration of this chapter.
2. WiMAX MAC scheduling and QoS: Issues and ... rate and predefined Quality of Service (QoS)
framework, enabling efficient and scalable networks for data, video, and voice. However,
the standard does not define the scheduling algorithm which ... features of the WiMAX
MAC layer and of the WiMAX scheduling classes. The main components of the MAC layer
are presented. Then, the key issues and challenges existing in the development of
scheduling...
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Quality of Service and Resource Allocation in WiMAXFig Part 5 pdf
Ngày tải lên :
21/06/2014, 05:20
... Satisfying QoS with a Learning Based Scheduling
Algorithm, School of Engineering, University of Durham,.
[24] M.Taghipoor,G Tavassoli and V.Hosseini(April 2010). Gurantee QoS in WiMAX
Networks ...
wireless-based access methods.
3.2 QoS and scheduling in WiMAX
A high level of QoS and scheduling support is one of the interesting features of the WiMAX
standard. These service- provider features are ... uplink traffic strongly depends on the CAC
algorithm.
Scheduling has also been studied intensively in many disciplines, such as CPU task
scheduling in operating systems, service scheduling in...
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Quality of Service and Resource Allocation in WiMAXFig Part 6 pot
Ngày tải lên :
21/06/2014, 05:20
... OFDMA in a downlink multi-cell
scenario, 9th International OFDM Workshop (InOWo).
S. Plass, X. G. Doukopoulos & R. Legouable (2006). Investigations on link-level inter-cell
interference in ... a further “wider holed” basin is not fully exploited in terms of water flow
increase. Reasoning in terms of TCP protocol, in fact, the congestion window moves following
the TCP layer acknowledgments ... basin, the water flow
splitting modality must be modified in such a way that the water in the two small basins is
136
Quality of Service and Resource Allocation in WiMAX
10 Will-be-set-by -IN- TECH
P
A
=...
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Quality of Service and Resource Allocation in WiMAXFig Part 7 doc
Ngày tải lên :
21/06/2014, 05:20
... will
be presented in following.
5.1.1 QoS constraints
In order to guarantee the quality of service required by these applications, the service provider
has to distinguish five service classes. ... Personal, Indoor and Mobile Radio
144
Quality of Service and Resource Allocation in WiMAX
4 Will-be-set-by -IN- TECH
In fact, using the channel quality feedback indicator, the downlink SNR is ... determine the burst profile
(c
n,s
, M
n,s
) of OFDMA slot s for user n. Todothis,simplydeterminetheSINR
n,s
corresponding to:
SINR
n,s
=
1
48
8
∑
f =1
6
∑
t∈1
SINR
n, f
(t) (14)
158
Quality of Service...
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Quality of Service and Resource Allocation in WiMAXFig Part 8 ppt
Ngày tải lên :
21/06/2014, 05:20
... SSs.
In this chapter, we focus on the WirelessMAN-SC air interface operating in the PMP mode.
In WiMAX networks, quality of service (QoS) is provided through five different services
classes in the ... used in the outer set of fixed point equations evolving
around the traffic load of an SS, ρ. In the following, we will develop the outer set of fixed point
equations for ρ.
3.2 Mean service time of ... defined in the IEEE 802.16 standard for TDD in
PMP mode is shown in Fig. 1. Each frame has a duration of Δ and is divided into uplink and
downlink subframes. At the beginning of a downlink subframe,...
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Quality of Service and Resource Allocation in WiMAXFig Part 9 docx
Ngày tải lên :
21/06/2014, 05:20
... the profits of the content providers.
With regard to Quality of Service (QoS) control, the WiMAX system provides service
differentiation based on the combination of a set of communication service ... mandatory set of QoS parameters that must be included in the service flow
definition when the class of service is adapted to a service flow. The main parameters are
the following: traffic priority, ... waiting time in the queue of an REQ for saturated
networks. So the delay of a packet can be changed to packet access delay as the time duration
from the beginning of the request interval in which...
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Quality of Service and Resource Allocation in WiMAXFig Part 10 pdf
Ngày tải lên :
21/06/2014, 05:20
... the main differences in handling QoS in both 4G
systems. Even though the underling technologies differ in many aspects, it is important to
Quality of Service and Resource Allocation in WiMAX ... results of assessing quality of VoIP (Voice Over IP)
conversations. CTC and nbLDPC codes are compared in terms of system capacity and
resulting quality of experience (QoE) performance of VoIP ... number of repetitions and for each set of repetitions the number of users in
the system increases as specified in Table 4. The number of users was chosen to show the
point where the perceived quality...
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Quality of Service and Resource Allocation in WiMAXFig Part 11 pot
Ngày tải lên :
21/06/2014, 05:20
... and feasible QoS means
to support quality- distinctive traffic distribution in the context of versatile telemedicine
services. Due to multiple telemedicine scenarios, the involved services are ... activity targeting QoS- accumulated techniques to maintain a certain
level of QoS assurance in healthcare services. (Vergados et. al, 2006) Vergados pushes
forward a challenge by proposing (Differentiated ... multi-disciplinary team meeting in Cancer Care
ã Support for Minor Injury Units
ã Training and supervision
ã Prison to hospital
Remote monitoring of
physiological or daily living
signs (real...
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Quality of Service and Resource Allocation in WiMAXFig Part 12 potx
Ngày tải lên :
21/06/2014, 05:20
... Division Multiplexing (OFDM) as a way of increasing symbol length
to guard against multi-path interference. The sub-carriers inherent in OFDM were adapted
for multi-user usage by means of Orthogonal ... Allocation in WiMAX
274
One of the drivers of WiMAX’s development is its suitability (because of centralized
scheduling using TDD) for video streaming. Video streaming, as a part of Internet ... settings
Quality of Service and Resource Allocation in WiMAX
280
generate new symbols that makes Fountain codes rateless. Decoding will succeed with small
probability of failure if any of...
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- khảo sát chương trình đào tạo của các đơn vị đào tạo tại nhật bản
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- khảo sát các chương trình đào tạo theo những bộ giáo trình tiêu biểu
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