energyminimized design for ip over wdm networks

... considers IP over WDM networks, which is an attractivearchitecture for optical backbone networks IP over WDM networks are more ad-vantageous compared to IP over Asynchronous Transfer Mode (ATM) over ... Trang 1IN IP OVER WDM NETWORKSWU GAOFENG NATIONAL UNIVERSITY OF SINGAPORE 2014 Trang 2ENERGY EFFICIENT CONNECTION PROVISIONINGIN IP OVER WDM NETWORKS WU GAOFENG (B Eng South ... Optical Layer Router Router Multiplexer Demultiplexer Figure 2.1: Architecture of an IP over WDM networknetworks All the lightpaths of provide by the optical layer form a virtual topologywhich is

Ngày tải lên: 09/09/2015, 08:12

... Media Layer Figure 1.4: IP-over-WDM layered modelsIP-over-ATM-over-SONET-over-WDM It is the commonly applied model for transporting IP traffic over WDM networks In this model, IP traffic is carried ... in heterogeneous IP-over-WDM networks con-It is expected that IP-over-WDM networks consist of multi-vendor network elements whichlead to a heterogeneous network environment Therefore, it is important ... section Trang 24Overlay modelIn the overlay model, IP networks behave as a client layer and the WDM networks behave as a server layer These IP networks and WDM networks are controlled by two separate

Ngày tải lên: 12/09/2015, 08:20

... integrated IP/WDM solution that simultaneously addresses the routing issue in both the IP and WDM networks. 1.4.1 Separate Routing for IP and WDM Networks In this approach, routing in IP-over-WDM ... resource usage information among network nodes (IP-MPLS routers and OXCs) in IP-over-WDM networks. For the IP layer, OSPF extensions can be used to distribute bandwidth usage information. For the optical ... [10]. 4 OXC IP Router Core-optical Network IP Router IP Router OXC OXC IP Router OXC (a) (b) Figure 1.4: Network level abstraction: (a) overlay (b)peer. 1.2 IP-over-WDM Network Architecture The IP-over-WDM architecture may use an overlay model

Ngày tải lên: 04/10/2015, 17:06

... cooperative schemes (for either strategy), several authors have adopted the diversity-multiplexing gain tradeoff proposed originally by Zheng and Tse for the MIMO channel, for single or multiple antenna ... communication over relay channels with no channel information [13–15] Schemes are also available for multiple antennas [16] Finally, distributed space-time codes have been consid-ered for asynchronous ... role of multiple anten-nas What the relays perform on their received signal de-pends on the chosen protocol, generally categorized between amplify-and-forward (AF) and decode-and-forward (DF).

Ngày tải lên: 22/06/2014, 19:20

... Over ATM Over SDH for WDM Transmission • IP Over ATM Directly on WDM • IP Over SDH; Packet Over SONET • IP Over SDL Directly Over WDM • IP Over GbE Over WDM  Tích h p IP over WDM d a trên quan ... h p IP over WDMầu về viêc tích hợp IP over WDM ề: ợp IP over WDM  Tích h p IP over WDM d a trên quan đi m Data Planeợp IP over WDM ựa trên quan điểm Data Plane ểm Data Plane • IP Over ATM Over ... 4.2 IP Over WDM—The Data Plane Perspective 4.2.1 IP Over ATM Over SDH for WDM Transmission4.2.2 IP Over ATM Directly on WDM 4.2.3 IP Over SDH; Packet Over SONET 4.2.4 IP Over SDL Directly Over WDM

Ngày tải lên: 29/06/2014, 07:20

... IP over WDM network Fang Yu 294 Class Presentation Outline  History of WDM networks  Current Internet: Multi-layer protocol stack between IP and WDM layers  Future: IP directly over WDM ... Reason for Multi-layer  SONET over WDM  Conventional WDM deployment is using SONET as standard interface to higher layers  IP over ATM  IP packets need to be mapped into ATM cells before transporting ... Simplified Protocol Stacks? IP Frame Relay ATM SONET WDM IP WDM WDM-aware Electronic layer Current Typical Protocol Stack Simplified Protocol Stack IP Directly Over WDM?  Establish high-speed

Ngày tải lên: 07/07/2014, 00:20

... chuyển đổi bước sóng 23 Phần 2 Mạng IP trên WDM 26 2.1 Giới thiệu 26 2.2 Các ưu điểm của IP over WDM 27 2.3 Ba giải pháp IP over WDM 27 2.4 Kiến trúc mạng IP/WDM 30 2.5 Chuyển mạch gói quang (OPS) ... đề: Mạng quang WDM và xu hướng IP over WDM Lời mở đầu 2 Phần 1 Tổng quan về mạng quang WDM 3 1.1 Giới thiệu 3 1.2 Nguyên lí hoạt động của hệ thống WDM 5 1.3 Ưu điểm của hệ thống WDM 8 1.4 Vấn ... mạng đường trục và mạng đô thị Tiểu luận này tìm hiểu về vấn đề xu hướng tích hợp IP trong mạng quang WDM (IP over WDM) Nhóm thực hiện xin chân thành cảm ơn TS Nguyễn Hồng Sơn đã hướng dẫn và góp

Ngày tải lên: 14/04/2015, 01:15

... tin IP trên các bước sóng Trang 13Hình 1.5 chỉ ra 3 khả năng có thể cho IP over WDM Phương pháp thứ nhất là truyền dẫn IP over ATM, sau đó là IP over SONET/SDH và cuối cùng là IP over WDM WDM ... tại UChương 2: IP over wdm Trang 16Chương 2: IP Over WDM 2.1 Các kiến trúc mạng IP over WDM: Kỹ thuật mạng WDM có thể được chia ra làm 2 loại: WDM có thể cấu hình lại và WDM chuyển mạch Loại ... các mạng IP và mạng quang có thể liên thông được với nhau Hiện có 2 mô hình liên kết IP/WDM: • IP over reconfigurable WDM • IP over switched WDM Trong mô hình IP over reconfigurable WDM, ta đã

Ngày tải lên: 13/02/2021, 21:28

... mạng IP over WDM 24 30T 30T 30T 30 T 30T 30 T 2.2 Các mô hình liên kết mạng IP/WDM 28 30T 30T 2.2.1 IP over reconfigurable WDM 29 2.2.2 IP over WDM chuyển mạch (IP over ... T Chương 72 Khả tồn mạng IP over WDM 72 4.1 Tổng quan tồn mạng IP over WDM 72 4.2 Các phương pháp nâng cao khả sống sót mạng IP over WDM 75 30T 30T 30T 30T 30T ... mạng IP over WDM Tổng quan nguyên lý bảo vệ tích hợp mạng IP over WDM Mục tiêu phương pháp bảo vệ tích hợp tích hợp tìm đường lớp IP với tìm đường lớp WDM chuyển đổi bước sóng, cho phép lớp IP

Ngày tải lên: 14/02/2021, 11:06

... transmitter precoder design can be found in [38,39] 3.2 Systems with multiple receive antennas For systems with two or more receive antennas, channel es-timation can be performed at each receiver ... signal detection can be performed with the overall data rate much higher than that of the corresponding SISO system For a 2×2 system in a slow time-varying environment, for example, blind chan-nel ... SNR level For systems with a single-receive antenna, we chooseN = L + 1, resulting in an overall data rate of 1 For systems with two receive antennas, we choose N = 3(L + 1) so that the overall

Ngày tải lên: 22/06/2014, 19:20

... error concealment for video In Section 3, we briefly describe the channel models used and provide the performance analysis for the coded and uncoded systems employing nonuniform MPSK over Rician slow-fading ... alphabets withM =2m, for example, for 8-PSK,M =8, andm =3 For the information in the enhancement layer (i.e., the encoder output component sent using the fine modulation of the nonuniform MPSK constellation) ... either uniform QPSK or uniform 8-PSK without channel coding (2) A 2-layer system using nonuniform 8-PSK without channel coding (3) A single-layer system using either uniform QPSK or uniform 8-PSK

Ngày tải lên: 22/06/2014, 19:20

... (stop==false) z i = r i for alli =1∼ h For (j=1;j < = h; j + +) For (k=1;k < = h; k + +) z k = z k+ delta fork == j //Increase sublayer j z k = z k −delta/(h −1) fork! = j //Decrease others ... the total distortion after performing partial decoding; or (ii) be embedded in the for every frame Since the precoded video is transmitted over error prone wireless networks, sublayers are subject ... shaping can optimize video streaming for each link We start by giving the system description of BRS then provide the algorithm for RD optimization 2.1 System description of video streaming with baseline

Ngày tải lên: 23/06/2014, 01:20

... Service for Voice over IP Solutions Guide Version 1.0 Preface This preface introduces the QoS for Voice Over IP Solutions Guide, which explains quality of service for Voice over IP (QoS for VoIP) ... expenses. 1-4 Quality of Service for Voice over IP Solutions Guide Version 1.0 Chapter 1 QoS for Voice over IP Solutions Overview About QoS for VoIP QoS features for voice that implement reliability ... Bytes X Bytes 27091 1-3 Quality of Service for Voice over IP Solutions Guide Version 1.0 Chapter 1 QoS for Voice over IP Solutions Overview About QoS for VoIP TCP offers reliability in that it guarantees

Ngày tải lên: 16/11/2014, 19:57

... aver-aged over all data flows 187 7.23 Delay in scenario in fig 7.21 for varying load, averaged over all flows 187 7.24 Power for scenario in fig 7.21 for varying load, averaged over all flows ... layerprotocol is the Session Initiation Protocol (SIP) which can for example be used toset up an IP based telephone call (Voice over IP, VoIP) Presentation Layer When exchanging data, it must ... own format • The sender knows the data format of the receiver and converts the data intothe receiver format before transmitting • The sender and the receiver use a special format dedicated for

Ngày tải lên: 15/01/2018, 11:08

... conventional methods for image compression are based on DCT transform which is used on JPEG format The improved methods are based on Wavelet transform which is used in JPEG 2000 format Recently, ... phần cứng trên lõi IP Lõi IP sẽ được mô tả bằng ngôn ngữ Verilog và kiểm tra trên FPGA Sản phẩm của đề tài có thể được ứng dụng trong hệ thống trên chip (SoC – System on Chip) dành cho hệ thống ... scheme adopted for Contourlet transform [11] Giải thuật này được đề nghị bởi Xi Zhi-hong, Xiao Yi-han, trong bài báo “An Image conpression scheme adopted for Contourlet transform”, Image and

Ngày tải lên: 23/01/2021, 10:36

... Infrastructure Solutions for High-Performance Data Networks A Planning Guide for Network Managers www.adc.com/ip Welcome to The Planning Guide for Network Managers Your data center ... full of equipment and there is no room for any more 75 to 99%; our data center is heavily utilized, but we have room for some more equipment 50 to 74%; our data center has plenty of room for expansion ... cooling equipment for our existing needs OK; we cope well with most situations but sometimes experience a limited amount of overheating in some equipment Poor; we often have to address overheating

Ngày tải lên: 27/10/2013, 17:15

... assign Internet Protocol (IP) addresses to client computers, you must configure the IP addresses that the Routing and Remote Access service uses for the VPN For more information about VPNs, see ... server to connect remote users and remote networks to a local network Trang 102 Module 5: Configuring Access for Remote Clients and Networks " VPN Overview ! Understanding VPNs ! Connecting ... authentication and encryption methods. Open static packet filters for allowing PPTP and L2TP over IPSEC protocols. The number of ports available for clients to connect is 128, but this number can be Next

Ngày tải lên: 10/12/2013, 16:16

... Trang 1for Data Requirements Trang 2Module 1: Course Overview Module 4: Deriving a Logical Data Design Module 5: Normalizing the Logical Data Design Module 6: Deriving a Physical Data Design ... Integrity Module 2: Solution Design Processes Module 3: Using a Conceptual Design for Data Requirements Module 8: Designing Data Services Module 9: Data Storage Considerations Designing Data Services ... Identification of relationships The team must identify the relationships between objects For example, “manager approves timesheet” is a relationship Prioritization After all relationships have been identified,

Ngày tải lên: 10/12/2013, 17:15

... 2011:144 http://jwcn.eurasipjournals.com/content/2011/1/144 Page 11 of 14 RESEARCH Open Access Novel low-PAPR parallel FSOK transceiver design for MC-CDMA system over multipath fading channels Juinn-Horng ... MAI and approach the optimal BER performance given by the MFB. More- over, for large N, the proposed system can ever outper- form the theoretical QPSK BER performance. Because the proposed system ... rate and high perfor- mance over multipath fading channels. First, for a mul- tiuser uplink, the parallel FSOK scheme with interlea ved subcarrier assig nments is designed to provide multiuser transmissions...

Ngày tải lên: 20/06/2014, 22:20