... tuyÕn Lí p truyÒn t¶i IP POS SDH WDM IP Ethernet GbE SDH WDM IP MAPOS WDM SDL RPR Ethernet SDH SDH (VCnc)/LAPS IP ATM ATM Cell Based SDH WDM ATM IP ATM DTM SDH frame DTM frame based WDM DTM Lí p m¹ng ... thời gian ngắn. Điều này đảm bảo 14 • IP/ DTM/SDH(khung) /WDM • IP/ LAPS/SDH(khung) /WDM • IP- MPLS/SDH(khung) /WDM • IP- MPLS/quang (Digital Wrapper -G.907) • IP- GMPLS/quang Cần biết rằng nguyên lý ... cung cấp thiệt bị. Đã có nhiều phương pháp để cung cấp dịch vụ gói IP trên mạng WDM được đề nghị: IP/ ATM/SDH over WDM, IP/ SDH over WDM, v.v.v. Tuy nhiên việc quản lý mạng theo các phương pháp trên...
Ngày tải lên: 20/06/2014, 22:49
Ngày tải lên: 22/06/2014, 19:20
Chuyên đề Mạng truyền dẫn quang (TS. Võ Viết Minh Nhật) - Bài 4 IP Over WDM Integration pdf
Ngày tải lên: 29/06/2014, 07:20
Tài liệu AN ALGORITHMIC FRAMEWORK FOR PROTECTION SWITCHING IN WDM NETWORKS doc
... algorithms for WDM optical networks, ” in Proceedings of IEEE INFOCOM ’98. [6] S. Lumetta and M. Medard, “Towards a deeper understanding of link restoration algorithms for mesh networks, ” ... Le Boudec, Design of a survivable WDM photonic network,” in Proceedings of IEEE INFOCOM ’97. [14] E. Modiano and A. Narula-Tam, “Survivable routing of logical topologies in WDM networks, ” ... Sivarajan, Optical Networks: A Practical Perspective, Morgan Kaufmann Publishers, 1998. [21] R. Ramaswami and K. Sivarajan, Design of logical topologies for wavelength-routed optical networks, ”...
Ngày tải lên: 20/01/2014, 23:20
Báo cáo hóa học: "Novel low-PAPR parallel FSOK transceiver design for MC-CDMA system over multipath fading channels" pdf
... 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
báo cáo hóa học: " TCP NCE: A unified solution for non-congestion events to improve the performance of TCP over wireless networks" docx
... receiving TCP. For delivering information successfully over wireless networks, the modification of TCP congestion control algorithms is necessary especially fast retransmission and recovery. For the ... Improving TCP performance in integrated wireless communications networks. Comput Netw. 47, 219–237 (2005) 5. CP Fu, SC Liew, TCP Veno, TCP enhancement for transmission over wireless access networks. ... for non-conges tion events in addition t o net- work congestion to improve the performance of TCP over wireless networks. To address this issue, we propose a unified solution called TCP NCE for...
Ngày tải lên: 21/06/2014, 02:20
Báo cáo hóa học: " Research Article Design and Analysis of an Energy-Saving Distributed MAC Mechanism for Wireless Body Sensor Networks" doc
... Multiple Access (TDMA) MAC protocol especially designed for biosensors in BSNs. It improves energy efficiency by exploiting human heartbeat rhythm information to perform time synchronization for TDMA. ... performance at eliminating collisions in data transmissions, while minimizing the control overhead and hence the overall energy consumption per information bit. Acknowledgments ThisworkwasperformedwhileB.OtalwasatCTTCand was ... in 43.31% for a payload length packet of 50 bytes; (iii) BSN-MAC outperforms IEEE 802.15.4 MAC in 7.20% for payload length packet of 80 bytes; (iv) DQ-MAC outperforms IEEE 802.15.4 MAC in 36.65% for...
Ngày tải lên: 21/06/2014, 11:20
báo cáo hóa học:" Performance assessment of IP over vehicular delay-tolerant networks through the VDTN@Lab testbed EURASIP Journal on Wireless Communications and Networking 2012, 2012:13 " pptx
... in a testbed (prototype) network for performance assessing under real-world conditions. In this sense, this article focuses on the performance evaluation of IP over VDTNs through a prototype, ... research works related to vehicular networks. The design of the proposed testbed for VDTN networks is presented in Section 4. Section 5 focuses on the performance evaluation and validation of ... VDTN@Lab testbed. 5 the design, and construction of a laboratory testbed for VDTNs, called VDTN@Lab. The motivation for this prototype is to provide a framework for demonstration and validation...
Ngày tải lên: 21/06/2014, 17:20
Báo cáo hóa học: "Research Article Auction-Based Resource Allocation for Cooperative Video Transmission Protocols over Wireless Networks" ppt
... protocols for video transmission to better utilize system resources for performance improvement. Moreover, because of the broad- cast nature of the phase 1 in cooperative transmission, the source information ... schemes are compared for the perfor- mance improvement over different scenarios and for the implementation concerns. The proposed video cooperative scheme has the best performance among all schemes, ... 19]. For our proposed cooperative video transmission, we study the video communications over the full-fledged coop- erativenetwork,andwefocusonhowtouserelaynodes to improve the overall system performance,...
Ngày tải lên: 21/06/2014, 20:20
Báo cáo hóa học: "Research Article An Energy-Efficient Link Layer Protocol for Reliable Transmission over Wireless Networks" pdf
... know that K = 3 for 802.15.4 residual channels [19]andK = 10 for 802.11 residual channels [21], and we perform all our analysis for a parameterized value of K so that the analysis is valid for Markov ... Therefore, we ignore collision overhead in our analysis. 3.2. Simple Positive-ACK Protocol. Simple Positive-ACK is the de-facto standard for hop-by-hop reliable transmission over multihop ad hoc networks. ... scenarios of multihop wireless networks require high transmission reliability; for instance, wireless ad hoc and sensor networks are anticipated to be deployed in disaster recovery areas, battlefields,...
Ngày tải lên: 21/06/2014, 22:20
Báo cáo hóa học: "Research Article A Cross-Layer Routing Design for Multi-Interface Wireless Mesh Networks" pptx
Ngày tải lên: 21/06/2014, 23:20
Báo cáo hóa học: " Research Article Transmit Delay Structure Design for Blind Channel Estimation over Multipath Channels" pot
Ngày tải lên: 22/06/2014, 19:20
Báo cáo hóa học: " Joint MIMO-OFDM and MAC Design for Broadband Multihop Ad Hoc Networks" pot
Ngày tải lên: 22/06/2014, 22:20
Báo cáo hóa học: " Fine-Grained Rate Shaping for Video Streaming over Wireless Networks" pot
Ngày tải lên: 23/06/2014, 01:20
DESIGN AND IMPLEMENTATION OF WEB-BASED DATA AND NETWORK MANAGEMENT SYSTEM FOR HETEROGENEOUS WIRELESS SENSOR NETWORKS
Ngày tải lên: 24/08/2014, 10:50
Chất lượng dịch vụ trong mạng IP trên WDM
... chùm quang dữ liệu tạ i bộ định tuyến IP đầu vào và sau đó 35 Chương 3 TRUYỀN DẪN IP TRÊN MẠNG WDM 3.1 SỰ TÍCH HỢP IP VÀ MẠNG QUANG Ngày nay lưu lượng IP đã trở thành lưu lượng lấn át trên ... dành cho vận chuyển IP trên mạng WDM hiện nay là thông qua mạng ATM và SONET và đã được ứng dụng trong mạng WDM. Hơn nữa, sự vận chuyển trực tiếp IP trên mạng WDM đang được theo đuổi cho các ... lượng IP trong các mạng WDM. Các kỹ thuật này bao gồm: - Định tuyến bước sóng - Chuyển mạch gói quang - Chuyển mạch chùm quang Do vậy, dựa vào các kỹ thuật chuyển mạch, các mạng IP/ WDM có...
Ngày tải lên: 12/11/2012, 11:13