đồ án quality of service

... PHB giá trị DSCP 25 2.4 LAN Class of Service – CoS 28 2.5 Đánh dấu gói tin WAN 30 Giảng viên hướng dẫn: Nguyễn Ngọc Đai Quality of Service Congestion Management Queuing ... với giá trị DSCP gán CoS Giảng viên hướng dẫn: Nguyễn Ngọc Đai Quality of Service 2.5 Đánh dấu gói tin WAN Frame Relay ATM (Asynchronous Transfer Mode) hỗ trợ bit đơn dùng để đánh dấu, bit đơn ... cuối b...

Ngày tải lên: 20/09/2015, 13:54

Ngày tải lên: 18/02/2014, 11:20

... control plane for signaling, data plane for media transmission and knowledge plane for meta-data recording 3.3 QCMF M ANAGEMENT F UNCTIONS As an adaptive end- to -end QoS management framework, ... rich set of services for the configuration and management of the transmission quality (e.g., buffer management, flow synchronization and QoS-based handover) outside the k...

Ngày tải lên: 14/09/2015, 14:12

... Principles o Traffic shaping l l leaky bucket token bucket o Scheduling strategies l l l l l FIFO Priority Round Robin Fair Queueing RED o IntServ o DiffServ Queue Management Improving QOS in IP ... in IP Networks o IETF groups are working on proposals to provide better QOS control in IP networks, i.e., going beyond best effort to provide some assurance for QOS o Work in Prog...

Ngày tải lên: 06/04/2013, 11:05

... classes of service You can base policies on IP addresses, port numbers, protocols, or the size of packets You can use one of these descriptors to create a simple policy, or you can use all of them ... use the CID to index its table of stored session contexts 139 cRTP can compress the 40 bytes of header down to to bytes most of the time As such, about 98 percent of the time t...

Ngày tải lên: 30/09/2013, 05:20

... field application-perceived Quality of Service The work was done at the School of Engineering at Blekinge Institute of Technology (BTH) in the context of the Personal Information for Intelligent ... Messaging services, sending information essentially in one direction when required; • Interactive services, sending information in both directions in a request/response manner...

Ngày tải lên: 18/10/2013, 12:15

... Digivance® Simulcast Networks New Network Architecture Reduce Network Costs and Improve Quality of Service Improving Grade of Service (GOS) While Reducing RF Channels Wireless service ... adopting new deployment strategies to reduce network costs and improve quality of service In one urban market, a major national wireless service provider...

Ngày tải lên: 10/12/2013, 19:15

... sorted into various types of service at the basic perimeter of the network and that those types of service should be implemented in the core of the network Routers in the core of the network can then ... levels or classes of service When traffic descriptors are used to classify traffic, the source agrees to adhere to the contracted terms and the network promises a quality...

Ngày tải lên: 11/12/2013, 14:15

... Objectives Upon completion of this module, you will be able to perform the following tasks: • Explain the significance of Quality of Service (QoS) • Describe new Quality of Service (QoS) features ... QoS enables you to offer carefully tailored grades of service differentiation to your customers • Coexistence of mission-critical applications Cisco QoS features make...

Ngày tải lên: 11/12/2013, 14:15

... 802.1p field (referred to as class of service or CoS), which is part of the 802.1Q tag • At Layer using the bits of DSCP field in the type of service (ToS) byte of the IP header Classification is ... econ_387_05_010 pt p The objective of this module is to define the quality of service (QoS) tools which must be implemented to provide a voice-enabled transport service fo...

Ngày tải lên: 11/12/2013, 14:15

... 24- 1 DATA TRAFFIC The main focus of congestion control and quality of service is data traffic In congestion control we try to avoid traffic congestion In quality of service, we try ... new congestion avoidance phase starts 24. 17 Figure 24. 10 TCP congestion policy summary 24. 18 Figure 24. 11 Congestion example 24. 19 Figure 24. 12 BECN 24. 20 Figure...

Ngày tải lên: 06/03/2014, 12:20

... 5.9 References Quality of service 6.1 Introduction 6.2 Routing in mobile ad hoc networks 6.3 Routing with quality of service constraints 6.4 Quality of service routing in ad hoc networks 6.5 Conclusion ... Acknowledgements Introduction 1.1 Ad hoc networking 1.2 The ad hoc wireless network: operating principles 1.3 Ad hoc networks: vulnerabiliti...

Ngày tải lên: 25/03/2014, 12:07

... article as: Korger et al.: Quality of service implications of power control and multiuser detection-based cross-layer design EURASIP Journal on Wireless Communications and Networking 2011 2011:9 ... article we start out with a detailed review and discussion of available CLDs for both power control and MUD Eventually, we are concerned with the Quality of...

Ngày tải lên: 21/06/2014, 03:20

... QPSK 1/ 2 5.82 5.65 5.33 4.80 QPSK 3/4 8.73 8.47 8.00 7.20 16 -QAM 1/ 2 11 .64 11 .29 10 .67 9.60 16 -QAM 3/4 64-QAM 2/3 64-QAM 3/4 17 .45 16 .94 16 .00 14 .40 23.27 22.59 21. 33 19 .20 26 .18 25. 41 24.00 21. 60 ... orders@intechweb.org Quality of Service and Resource Allocation in WiMAX, Edited by Roberto C Hincapie and Javier E Sierra p cm 978-953-307-956 -1 ...

Ngày tải lên: 21/06/2014, 05:20

... WiMAX physical layer standard OFDM_BPSK_1_2 in our simulations [24] 100 Quality of Service and Resource Allocation in WiMAX UGS 350 0 3000 Throughput 250 0 2000 150 0 1000 50 0 300 800 1400 1900 2400 ... for the remaining users under high SINR assumption 114 Quality of Service and Resource Allocation in WiMAX Will-be-set-by -IN- TECH 10 3) Power minimization wi...

Ngày tải lên: 21/06/2014, 05:20