1. 1 以 PSC 為基礎之光學網路架構與群播機制 之研究 The study of PSC Based Optical Networks and Multicast Mechanisms Speaker ：劉政德 Advisor ：吳和庭 教授 Date ： 2008 November 13 th

2. 2 Outline  Background  PSC-WDM PON Architecture and Multicast Algorithm  PSC-WDM PON Simulation  PSC-Star Network Architecture and Multicast Algorithms  PSC-Star Network Simulation  Conclusion and Feature works

3. 3 Background  Passive Optical Network (PON)

4. 4 Background  TDM PON (Four PON combined)

5. 5 Background  AWG-WDM PON

6. 6 PSC-WDM PON Architecture and Multicast Algorithm

7. 7 PSC-WDM PON Simulation term definition  Packet’s type ： unicast ， single PON ， multi PON single PON  Offered Load As Source ：  average packet’s number per slot  Performance Evaluation ： Multicast Failed Ratio of Low Priority

8. 8 PSC-WDM PON Simulation Environment 系統環境參數參數值 可使用波長範圍 4 AWG or PSC 輸出端連接的 PON 個數 4 每個 PON 的 ONU Group 裡 ONU 個數 16 時槽傳輸時間 0.0005s 優先權個數 2 高優先權封包封包到達時間 Exponential 分佈 (0.0075s  0.00075s) 低優先權封包封包到達時間 Exponential 分佈 (0.00375s  0.000375s) 封包目的端數 Int uniform 分佈 (3,12) (3,24) (3,32) (3,48) (3,64) Single_PON,Unicast,Multi_PON 封包產生比例 (50%,10%,40%) (0%,50%,50%) (0%,40%,60%) 高優先權封包 TTL 0.005s 低優先權封包 TTL 0.01s 總模擬時槽數 60000 time slot

9. 9 PSC-WDM PON Simulation AWG-WDM PON & TDM PON

10. 10 PSC-WDM PON Simulation AWG-WDM PON & TDM PON

11. 11 PSC-WDM PON Simulation AWG-WDM PON & TDM PON & PSC-WDM PON

12. 12 PSC-WDM PON Simulation

13. 13 PSC-Star Network Architecture

14. 14 PSC-Star Network Multicast Algorithms  LookBack Queue Medium Access with Priority (LBQAP)LBQAP  shortest TTL first MAC (STTLF)STTLF  Partitioned-shortest TTL first MAC (PSTTLF)PSTTLF

15. 15

16. 16

17. 17

18. 18 PSC-Star Network Simulation Environment 系統環境參數參數值 可使用波長範圍 4 ， 8 ， 12 ONT 個數 8 ， 16 ， 24 時槽傳輸時間 0.0005s 優先權個數 2 每一個 ONT 高優先權封包到達時間 Exponential 分佈 (0.06s  0.006s) 每一個 ONT 低優先權封包到達時間 Exponential 分佈 (0.03s  0.003s) 封包目的端數 Int uniform(2,5) ， (2,8) Unicast, Multicast 封包產生比例 (70%,30%) (50%,50%) (30%,70%) 高優先權封包 TTL 0.005s 低優先權封包 TTL 0.01s 總模擬時槽數 60000 time slot

19. 19 PSC-Star Network Simulation packet’s destination fixed wavelength fixed

20. 20 PSC-Star Network Simulation packet’s destination fixed wavelength fixed  channel limit

21. 21 PSC-Star Network Simulation packet’s destination fixed wavelength increase

22. 22 PSC-Star Network Simulation packet’s destination fixed wavelength increase

23. 23 PSC-Star Network Simulation packet’s destination increase wavelength fixed

24. 24 PSC-Star Network Simulation packet’s destination increase wavelength increase

25. 25 PSC-Star Network Simulation Receiver Utilization

26. 26 Conclusion  Proposed PSC-WDM PON Architecture and Multicast Algorithm with priority. By using simulation result,compare the achieved performances with those from AWG-WDM PON, TDM PON (four PON combined) architectures.  Propose three different multicast access protocols, called LBQAP Protocol 、 STTLF Protocol and PSTTLF Protocol, for be employment in an asynchronous slotted optical star network with priority.

27. 27 Feature works  Many fixed receivers composed an receive array.  A proper scheduling to transmit unfixed length packets.  Extension PSC Star PON.

28. 28 Reference  Kyeong Soo Kim, “On the evolution of PON-based FTTH solutions,” Information Sciences—Informatics and Computer Science: An International Journal, Volume 149, January 2003  Glen Kramer and Gerry Pesavento, “Ethernet Passive Optical Access Network (EPON): Building a Next-Generation Optical Access Network,” Communications Magazine, IEEE, Volume: 40, Issue: 2, Feb. 2002, Pages:66 – 73  IEEE Standards for Information technology: Standard for port based network access control. IEEE Draft 802.3ah, July.2004  Yu-Li Hsueh, Rogge, M.S., Wei-Tao Shaw, Kazovsky, L.G. and Yamamoto, S., “SUCCESS-DWA: a highly scalable and cost-effective optical access network,” Communications Magazine, IEEE, Volume 42, Issue 8, Aug. 2004 Page(s):S24 - S30

29. 29 Reference  Leo Spiekman, David Piehler, “Semiconductor Optical Amplifiers for FTTx,” ICTON Mo.D2.4 IEEE 2007  P.P. Iannone, et al. “Hybrid CWDM Amplifier Shared by Multiple TDM PONs, ” in Proc. OFC 2007 Anaheim, CA, 2007, post-deadline papers.  黃舜雍， ” 多重星狀光學網路下群播協定之設計 ”, 台北科技大學電腦通訊與控制研究所， 2000.  洪博信，適用於光學互連網路中群播分割機制之設計，碩士論文，國立台北科技大學 電腦通訊與控制研究所，民國 91 年。  林澤賢，能支援群播服務之分波多工被動式光纖網路的架構，碩士論文，台北科技大 學，資訊工程所，民國 94 年。

30. 30 Q&A