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WIMAX聚合子層於嵌入式系統下之探討與實現

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Presentation on theme: "WIMAX聚合子層於嵌入式系統下之探討與實現"— Presentation transcript:

1 WIMAX聚合子層於嵌入式系統下之探討與實現
The research and implementation of WiMAX convergence sublayer system over an embedded system Advisor : Dr. Kai-Wei Ke Speaker : Chao-Sung Yah Data : /01

2 OUTLINE Introduction Service Flow Categorization Design
IEEE d MAC Layer IEEE d CS sub-layer Service Flow Categorization Design IEEE802.1Q/P Type of Service Diff-Serv Well-know Port RTP protocol IEEE d-2004 Convergence Sub-layer Implementation System Architecture Subsystem design System flow System over embedded system Conclusion and Future Work References

3 IEEE 802.16D MAC LAYER Convergence Sublayer (CS)
Mapping external network data into MAC SDU Classifying external network SDU Associating to MAC connection ID Payload header suppression (PHS) Common Part Sublayer (CPS) System access Bandwidth allocation Connection establishment Connection maintenance Security Sublayer Authentication Security key exchange Encryption

4 OUTLINE Introduction Service Flow Categorization Design
IEEE d MAC Layer IEEE d CS sub-layer Service Flow Categorization Design IEEE802.1Q/P Type of Service Diff-Serv Well-know Port RTP protocol IEEE d-2004 Convergence Sub-layer Implementation System Architecture Subsystem design System flow System over embedded system Conclusion and Future Work References

5 Asyncronous Transfer Mode (ATM) CS Packet CS
SERVICE SPECIFIC Asyncronous Transfer Mode (ATM) CS Packet CS The packet CS is used for transport for all packet-based protocols such as Internet Protocol (IP),Point-to-Point Protocol (PPP), and IEEE Std (Ethernet). Other CSs may be specified in the future

6 PACKET CONVERGENCE SUB-LAYER(PCS)
Down-link Classification of the higher-layer protocol PDU Suppression of payload header information (optional) Delivery of the resulting CS PDU to the MAC SAP UP-link Receipt of the CS PDU from MAC SAP Rebuilding of any suppressed payload header information (optional)

7 CLASSIFICATION

8 PAYLOAD HEADER SUPPRESSION (PHS) INFORMATION EXCHANGE

9 PAYLOAD HEADER SUPPRESSION (PHS) METHOD

10 OUTLINE Introduction Service Flow Categorization Design
IEEE d MAC Layer IEEE d CS sub-layer Service Flow Categorization Design IEEE802.1Q/P Type of Service Diff-Serv Well-know Port RTP protocol IEEE d-2004 Convergence Sub-layer Implementation System Architecture Subsystem design System flow System over embedded system Conclusion and Future Work References

11 IEEE802.1Q/P FIELD

12 PRIORITY AND SERVICE FLOW VALUE DESIGN
Priority value Service Flow Type Define No Priority 1 BE 2~3 NRTPS 4~5 RTPS 6~7 UGS

13 OUTLINE Introduction Service Flow Categorization Design
IEEE d MAC Layer IEEE d CS sub-layer Service Flow Categorization Design IEEE802.1Q/P Type of Service Diff-Serv Well-know Port RTP protocol IEEE d-2004 Convergence Sub-layer Implementation System Architecture Subsystem design System flow System over embedded system Conclusion and Future Work References

14 TYPE OF SERVICE 1 2 3 4 5 6 7 Precedence D T R C Reserved

15 TYPE OF SERVICE IP Precedence Priority 000 Routine (lowest priority)
001 010 Immediate 011 Flash 100 Flash Override 101 Critical 110 Internetworking Control 111 Network Control (highest priority)

16 SUGGESTION VALUE Application Delay Throughput Reliability Cost Telnet
1 FTP Command FTP DATA SMTP Command SMTP Data DNS ICMP NNTP

17 OUTLINE Introduction Service Flow Categorization Design
IEEE d MAC Layer IEEE d CS sub-layer Service Flow Categorization Design IEEE802.1Q/P Type of Service Diff-Serv Well-know Port RTP protocol IEEE d-2004 Convergence Sub-layer Implementation System Architecture Subsystem design System flow System over embedded system Conclusion and Future Work References

18 DIFFERENTIAL SERVICE(DIFFSERV)
1 2 3 4 5 6 7 Differential Service Code Point (DSCP) CU

19 DIFFERENTIAL SERVICE CODE POINT
Four kind of Per Hop Behavior : 一、The Default PHB:DCSP value is , Service type is Best Effort Service 。 二、Class-Selector PHBs,DSCP value is xxx000, the default Codepoint is also Class-Selector Codepoint 。 三、Expedited Forwarding(EF) PHB,low loss , low delay ,low jitter,bandwidth guarantee , DSCP value is 。 四、Assured Forwarding (AFxy) PHB , F4>F3>F2>F1 ,Fx3>Fx2>Fx1

20

21 DSCP/TOS VALUE DESIGN

22 OUTLINE Introduction Service Flow Categorization Design
IEEE d MAC Layer IEEE d CS sub-layer Service Flow Categorization Design IEEE802.1Q/P Type of Service Diff-Serv Well-Know Port RTP protocol IEEE d-2004 Convergence Sub-layer Implementation System Architecture Subsystem design System flow System over embedded system Conclusion and Future Work References

23 WELL-KNOW PORT AND SERVICE FLOW VALUE DESIGN
Port Number Service Name Transport Protocol Application Service Server Flow 7 Echo TCP/UDP Reply test BE 20 FTP Data TCP FTP Data Port NRTPS 21 FTP FTP Control Poet 23 Telnet Telnet Server Port 25 SMTP Simple Mail Transfer Protocol 43 Who is Who、Nickname 53 Domain Domain Name Server(DNS) 69 TFTP UDP Trivial File Transfer Protocol 80 HTTP Web Server 110 POP3 Post Office Protocol 3 443 HTTPS Encryption HTTP 554 RTSP Real Time Stream Control Protocol RTPS

24 OUTLINE Introduction Service Flow Categorization Design
IEEE d MAC Layer IEEE d CS sub-layer Service Flow Categorization Design IEEE802.1Q/P Type of Service Diff-Serv Well-Know Port RTP protocol IEEE d-2004 Convergence Sub-layer Implementation System Architecture Subsystem design System flow System over embedded system Conclusion and Future Work References

25 RTP Header IP header UDP header RTP header RTP payload

26 RTP PAYLOAD TYPE AND SERVICE FLOW VALUE DESIGN
Server Flow Audio 0~23 UGS Vedio 24~33 RTPS Unknow 33 up

27 OUTLINE Introduction Service Flow Categorization Design
IEEE d MAC Layer IEEE d CS sub-layer Service Flow Categorization Design IEEE802.1Q/P Type of Service Diff-Serv Well-Know Port RTP protocol IEEE d-2004 Convergence Sub-layer Implementation System Architecture Subsystem design System over embedded system Conclusion and Future Work References

28 SYSTEM ARCHITECTURE

29 OUTLINE Introduction Service Flow Categorization Design
IEEE d MAC Layer IEEE d CS sub-layer Service Flow Categorization Design IEEE802.1Q/P Type of Service Diff-Serv Well-Know Port RTP protocol IEEE d-2004 Convergence Sub-layer Implementation System Architecture Subsystem design System over embedded system Conclusion and Future Work References

30 SENDER SIDE FLOW CHART

31 RECEIVER SIDE FLOW CHART

32 OUTLINE Introduction Service Flow Categorization Design
IEEE d MAC Layer IEEE d CS sub-layer Service Flow Categorization Design IEEE802.1Q/P Type of Service Diff-Serv Well-Know Port RTP protocol IEEE d-2004 Convergence Sub-layer Implementation System Architecture Subsystem design System over embedded system Conclusion and Future Work References

33 System over embedded system

34 OUTLINE Introduction Service Flow Categorization Design
IEEE d MAC Layer IEEE d CS sub-layer Service Flow Categorization Design IEEE802.1Q/P Type of Service Diff-Serv Well-Know Port RTP protocol IEEE d-2004 Convergence Sub-layer Implementation System Architecture Subsystem design System over embedded system Conclusion and Future Work References

35 CONCLUSION AND FUTURE WORK
To design A strong Classification is difficult, especially to differentiate multimedia. A complex Classification can enhance QoS efficiency. Future Work 1.IPv6 Classification impletement. 2.IEEE802.16e silence voice categorization.

36 OUTLINE Introduction Service Flow Categorization Design
IEEE d MAC Layer IEEE d CS sub-layer Service Flow Categorization Design IEEE802.1Q/P Type of Service Diff-Serv Well-Know Port RTP protocol IEEE d-2004 Convergence Sub-layer Implementation System Architecture Subsystem design System over embedded system Conclusion and Future Work References

37 REFERENCES RFC Source Book
標籤交換虛擬網路下端點對端點服務品質保證之研究 c/view_etd?URN= Point-to-Point Protocol over Ethernet Point_Protocol_over_Ethernet#PADI RFC 2474 : Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers RFC 1890 : RTP Profile for Audio and Video Conferences with Minimal Control Status of this Memo


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