routing and wavelength assignment with multi granularity traffic in optical networks
the handbook of optical communication networks
Ngày tải lên :
24/08/2014, 17:52
... Routing and wavelength assignment with multi- granularity traffic in optical networks Pin-Han Ho and Hussein T Mouftah Chapter 12 Adaptive routing and wavelength assignment in all -optical networks: ... signaling protocol for setting up, maintaining, and tearing down the connections A routing process for handling the topology and resource usage, and for calculating the routes A naming and addressing ... optical networks Routing and wavelength assignment in WDM networks Connection management in optical networks Survivability in optical networks Enabling technologies for optical networks © 2003...
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Tài liệu Điều khiển chống tắc nghẽn trong các mạng NGN – toàn IP Congestion Control in NGN – All IP Networks pptx
Ngày tải lên :
24/12/2013, 07:16
... for Congestion Avoidance in Computer Network Computer Networks and ISDN Systems, 17:1-14, 1989 [19] Intelligen Streaming www.microsoft.com/windows/ windowsmedia/features/intellistream/default.asp, ... product networks Proceedings of ACM SIGCOMM’02, August 2002 [9] I Stoica, S Shenker, and H Zhang Core-stateless fair queueing: Achieving approximately fair bandwidth allocations in high speed networks ... Savori Improving congestion control in IP-based networks using feedback from routers Technical Report TKN-04-008, July 2004 [8] D Katabi, M Handley, and C Rohrs Congestion control for high bandwidth-delay...
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Advanced Security Management in Metro Ethernet Networks* pptx
Ngày tải lên :
05/03/2014, 23:20
... when traffic increases Multiple flavors of broadband fixed wireless have been deployed including Local Multipoint Distribution Service (LMDS) and Multi- channel Multi- point Distributed System ... switches and the backbone network connected into different ISPs, as shown in Figure Typically, there is an access switch residing in the basement of a building aggregating user traffic within the ... more interesting In this paper, we will focus on the security issues that arise in ETTx and introduce a solution which is a combination of hardware and software (network management) The combined...
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Báo cáo " GA-based dynamic survivable routing in WDM optical networks with shared backup paths " pdf
Ngày tải lên :
28/03/2014, 13:20
... attentions in the optical survivability research 1.3 Motivation and Contribution In this paper, the problem of dynamic routing and wavelength assignment with lightpath protection (survivable routing) in ... divided into path protection and link protection In the former, a working path and a link-disjoint protection path are pre-computed for each connection In the later, each link of the working path ... of connection requests, the problem of setting up lightpaths by routing and assigning a wavelength to each connection is called routing and wavelength assignment (RWA) problem [1] If we cannot...
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survivability and traffic grooming in wdm optical networks
Ngày tải lên :
01/06/2014, 11:37
... aspects and issues in the design xvi Preface of such networks, which include the routing and wavelength assignment problems, optical packet switching and optical burst switching, traffic grooming and ... Observations Traffic grooming in WDM networks 9.1 Traffic grooming in WDM rings 9.2 Static traffic grooming in rings 9.3 Dynamic traffic grooming in WDM networks Gains of traffic grooming 10.1 Network parameters ... respective destinations based on their wavelengths All -optical networks employing wavelength- division multiplexing and wavelength routing are now viable solutions for wide area networks (WANs) and metropolitan...
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Báo cáo toán học: " Probabilistic framework for opportunistic spectrum management in cognitive ad hoc networks" potx
Ngày tải lên :
20/06/2014, 21:20
... μP(i) = ln(E[Pint ]) − int ⎛ (i) ⎞ Var[Pint ] ⎝ ⎠ ln + (i) 2 E[Pint ] (7) Pint Using the probabilities of clear and unclear spectrum given by (5) and (6) and the multiple and single SU probabilities ... send(DATA) with probability q end if SU-TX Receiving Acknowledgement tx (Pint rx (Pint if receive(ACK) and Rmin < R(i) then max−1 Single_SU = increase(Rmin) else current_spectrum = Single_SU = Rmin = ... it linearly increases with the traffic demands at b equals to and %10 For instance, maximum gain of 119.5 and 138% is Page 11 of 15 achieved at Mbps and 7.5 Mbps for b equals to and 10%, respectively...
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Báo cáo hóa học: " Probabilistic framework for opportunistic spectrum management in cognitive ad hoc networks" pdf
Ngày tải lên :
20/06/2014, 22:20
... μP(i) = ln(E[Pint ]) − int ⎛ (i) ⎞ Var[Pint ] ⎝ ⎠ ln + (i) 2 E[Pint ] (7) Pint Using the probabilities of clear and unclear spectrum given by (5) and (6) and the multiple and single SU probabilities ... send(DATA) with probability q end if SU-TX Receiving Acknowledgement tx (Pint rx (Pint if receive(ACK) and Rmin < R(i) then max−1 Single_SU = increase(Rmin) else current_spectrum = Single_SU = Rmin = ... it linearly increases with the traffic demands at b equals to and %10 For instance, maximum gain of 119.5 and 138% is Page 11 of 15 achieved at Mbps and 7.5 Mbps for b equals to and 10%, respectively...
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Báo cáo hóa học: " Research Article Tree Based Protocol for Key Management in Wireless Sensor Networks" pptx
Ngày tải lên :
21/06/2014, 11:20
... Cuti, C Gardiner, C Lynn, and P Kruus, “TinyPK: securing sensor networks with public key technology,” in Proceedings of the 2004 ACM Workshop on Security of Ad Hoc and Sensor Networks (SASN ’04), ... Networking [11] A Perrig, R Szewczyk, V Wen, D Culler, and J D Tygar, “SPINS: security protocols for sensor networks, ” in Proceedings of the 7th Annual International Conference on Mobile Computing and ... researchers investigated asymmetric cryptographic tools and propose adapted solutions Examples of such solutions are Tiny Public Key (TinyPK) [4] and Tiny Elliptic Curve Cryptosystem (TinyECC) [5] With...
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Báo cáo hóa học: "Research Article Admission Control and Interference Management in Dynamic Spectrum Access Networks" pot
Ngày tải lên :
21/06/2014, 17:20
... the impact of incorporating admission control on the forced termination of SUs and also the impact of deploying channel allocation with preference and repacking on the interference In Section 4, ... maximum of two SUs fit into the upper band At this point, it is more convenient to move the SU in the lower band to the empty channel in the upper band, avoiding in this way future interference if a ... also that in a system with reservation, and particularly for some reservation values like t = 10 or higher, the forced termination first decreases, attaining a minimum, and then ft increases The...
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Báo cáo hóa học: " Research Article Profile-Matching Techniques for On-Demand Software Management in Sensor Networks" potx
Ngày tải lên :
22/06/2014, 22:20
... Batalin and G S Sukhatme, “Coverage, exploration and deployment by a mobile robot and communication network,” in Proceedings of the International Workshop on Information Processing in Sensor Networks, ... J Heidemann, and S Kumar, “Next century challenges: scalable coordination in sensor networks, ” in Proceedings of ACM/IEEE International Conference on Mobile Computing and Networking, pp 263–270, ... scenario in our lab is depicted in Figure Five Mica2 and Mica2dot sensor motes are used to demonstrate the profile matching and reprogramming approach ON-DEMAND WSN MAINTENANCE: DETAILS AND METHODS In...
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Báo cáo hóa học: " Research Article Profile-Matching Techniques for On-Demand Software Management in Sensor Networks" doc
Ngày tải lên :
22/06/2014, 22:20
... Batalin and G S Sukhatme, “Coverage, exploration and deployment by a mobile robot and communication network,” in Proceedings of the International Workshop on Information Processing in Sensor Networks, ... J Heidemann, and S Kumar, “Next century challenges: scalable coordination in sensor networks, ” in Proceedings of ACM/IEEE International Conference on Mobile Computing and Networking, pp 263–270, ... scenario in our lab is depicted in Figure Five Mica2 and Mica2dot sensor motes are used to demonstrate the profile matching and reprogramming approach ON-DEMAND WSN MAINTENANCE: DETAILS AND METHODS In...
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Resource Management in Satellite Networks pot
Ngày tải lên :
27/06/2014, 01:21
... band), 28.35-28.6 and 29.25-30 GHz (Ka band) Downlink: 3.7-4.2 (C band), 11.7-12.2 (Ku band), 18.3-18.8 and 19.7-20.2 GHz (Ka band) IPStar GEO Broadband access, Intranet and VPN, Broadcast/Multicast, ... performing signal recovery before retransmitting it Since at some point base-band signals are available, other activities are also possible, such as routing and beam-switching (in case of multi- beam ... is the Inmarsat system, operating in the L band with GEO satellites for land-mobile services These bands have been assigned later also to non-GEO satellite networks Note that L, S and C bands are...
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Resource Management in Satellite Networks part 35 potx
Ngày tải lên :
05/07/2014, 19:20
... issues, and satellite orbits; and ITU-D, dealing with Telecommunications Developments ITU-R is charged with determining the technical characteristics and operational procedures for a huge and growing ... of international frequency use, recording and maintaining the Master International Frequency Register, which currently includes around 1,265,000 terrestrial frequency assignments, 325,000 assignments ... technologies In its role as global spectrum coordinator, ITU-R develops and adopts the Radio Regulations, a voluminous set of rules that serve as a binding international treaty governing the use...
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Resource Management in Satellite Networks part 1 doc
Ngày tải lên :
05/07/2014, 19:20
... four growing market areas are messaging and navigation services, mobility services, video delivery services, and interactive multimedia services In addition to this, interesting areas for investigation ... purposes, including sensors and data collection, weather, maritime navigation and timing, Earth observation, and communications In particular, satellite transmissions have an important role in telephone ... (Springer Science+Business Media, LLC, 233 Spring Street, New York, NY 10013, USA), except for brief excerpts in connection with reviews or scholarly analysis Use in connection with any form of information...
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Resource Management in Satellite Networks part 2 pot
Ngày tải lên :
05/07/2014, 19:20
... for MF-TDMA networks 6.3.2 CAC schemes for CDMA networks 6.4 Handover and CAC algorithms for non-GEO satellite systems 6.4.1 Intra-satellite handover and CAC schemes ... timeslot optimization and fair dynamic bandwidth allocation in a system employing adaptive coding 7.3.5 Dynamic bandwidth allocation for handover calls ... Telecommunications and Systems Engineering, Engineering School, Bellaterra 08193 - Barcelona, Spain gonzalo.seco@uab.es xxii List of Contributors Petia Todorova FhI - Fraunhofer Institute for Open...
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Resource Management in Satellite Networks part 3 pptx
Ngày tải lên :
05/07/2014, 19:20
... Division Multiple Access Maximum Legal Increment Multi- Level Priority Queuing Markov-Modulated Poisson Processes Multimedia Messaging Service Mobile Node Modulation and Coding Mean Opinion Score Multi ... is the Inmarsat system, operating in the L band with GEO satellites for land-mobile services These bands have been assigned later also to non-GEO satellite networks Note that L, S and C bands are ... Access System Internet Protocol over Satellite Integrated Services Digital Network Integral Satcom Initiative Inter-Satellite Links Interactive Satellite Network International Standard Organization/Open...
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Resource Management in Satellite Networks part 4 doc
Ngày tải lên :
05/07/2014, 19:20
... band), 28.35-28.6 and 29.25-30 GHz (Ka band) Downlink: 3.7-4.2 (C band), 11.7-12.2 (Ku band), 18.3-18.8 and 19.7-20.2 GHz (Ka band) IPStar GEO Broadband access, Intranet and VPN, Broadcast/Multicast, ... voice and data services TDMA TDD for both uplink and downlink Uplink: 1616-1626.5 MHz (L Band) Downlink: 1610-1626.5 MHz (L Band) ICO is planning a family FDMA/ of quality voice, wireless TDMA Internet ... broadcasting, interactive multimedia services and Internet connectivity Uplink: DVB-RCS (TDMA) Downlink: DVB-S Uplink: 13.75, 1414.50, 29.50-30 GHz Downlink: 10.70, 10.8612.75, 19.70-20.20 GHz Ku and...
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Resource Management in Satellite Networks part 5 pdf
Ngày tải lên :
05/07/2014, 19:20
... Therefore, Bandwidth on Demand (BoD) schemes (also known with the name of Demand Assignment Multiple Access, DAMA, techniques) have been introduced in the DVB-RCS standardization in order to ... the resources in the MF-TDMA air interface The RCST is responsible for analyzing, estimating and requesting the needed capacity for uplink transmissions (DAMA case), and for distributing the allocated ... typically employed to send control and administrative information to the NCC Out-of-band signaling A minislot method is used (with or without contentions): minislots are periodically assigned...
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Resource Management in Satellite Networks part 6 pps
Ngày tải lên :
05/07/2014, 19:20
... resulting in frequent intra- and inter-satellite handovers We assume a two-dimensional mobility model: users move in straight lines and at constant speed (satellite ground track speed composed with ... endpoints of BSM bearer services SI-SAP is used to define standard SI bearer services that are built upon lower layer transmission services Point-to-point, point-to-multipoint, multipointto-multipoint ... level and application level PEPs, communicates with bandwidth brokers and potentially with service discovery and security/authentication functions BPM directly interacts with IP protocols, including...
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Resource Management in Satellite Networks part 7 docx
Ngày tải lên :
05/07/2014, 19:20
... as heavy rain Guaranteed bandwidth must be provided at the data link layer by using efficient bandwidth-on-demand multiple access schemes and by studying the interaction of mechanisms in the presence ... channel-state information and the point-to-multipoint service set the difference between the packet scheduler in the satellite radio interface from its counterpart in point-to-point terrestrial mobile networks ... in scheduling, by limiting the SL as much as possible, and also achieves high resource utilization, by smoothing the time-varying demands with an overload control In [10], the packet-scheduling...
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