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A reconfiguration algorithm with qos guaranteed in mobile ad-hoc network

A reconfiguration algorithm with qos guaranteed in mobile ad-hoc network. Yingyou Wen, Yongxin Feng, Yueqiu Jiang, Guanxing Wang Research Center for Network & Communication, Northeastern University, Shenyang, Chnia Internet Laboratory 2 nd Semester Heo Nam Ho. Contents. Introduction

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A reconfiguration algorithm with qos guaranteed in mobile ad-hoc network

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  1. A reconfiguration algorithm with qos guaranteed in mobile ad-hoc network Yingyou Wen, Yongxin Feng, Yueqiu Jiang, Guanxing Wang Research Center for Network & Communication, Northeastern University, Shenyang, Chnia Internet Laboratory 2nd Semester Heo Nam Ho

  2. Contents • Introduction • Original Algorithm • Algorithm with QoS Guaranteed • Analysis and evaluation • Conclusion

  3. Introduction • Reconfiguration • Handle the failure of link or device dynamically • Change flow distribution in network

  4. Original Algorithm • Used in small-scaled military ad-hoc network • High performance communication with high reliability, availability • Network reconfiguration • Link reconnect • Structure rebuild

  5. Original Algorithm • Link reconnect • Link deactivation • A  C1 • sol • Restore link l1 • B2 or B3 be relay node

  6. Original Algorithm • Structure rebuild • B1 is failed • All son-nodes(C1, C2) reassigned to node A as surpass-nodes of A. • All son-nodes(C1,C2) reassigned to other nodeas roam-nodes.

  7. Original Algorithm • Reconfiguration strategy • Backup-restore • Restoring the communication • Relay-restore • Choose best relay node • Shuffle-restore • Relay-restore failed • Invalid destination node eliminated

  8. Original Algorithm • Evaluation • Attribute • Best-suited node

  9. Algorithm with QoS Guaranteed • Description • V={N1, ….. Nm} • m=|V| number of nodes • {NiP, NiX, NiY, NiZ, NiF, Nig} • NiX, NiY, NiZ son-node, surpass-node,roam-node • Data Stream DATAA={a1,a2,….a6}

  10. Algorithm with QoS Guaranteed • Relay_config • Rebuild all potential link • Do_class, QoS_oper • Describing the QoS requirement • Classifying data stream

  11. Algorithm with QoS Guaranteed • Do_Rsvp • Application layer • Each relay node evaluate its resources • makes a decision if they will accept the reserve request with given QoS • Send status of resources back to source node • Source node add path • No path  give up relay-restore • Relay_comm • Restore link source destination

  12. Algorithm with QoS Guaranteed • Evaluation • time consumed by selection of relay node • t(V’) • Time consumed during the process of establishment of relay path through Nnh • t(Ni,Nnh)+t(Nnh,Nj) • Time consumed by description of QoS for user application • t’(Ni)+t’’(Ni)

  13. Algorithm with QoS Guaranteed • Evaluation • Original algorithm • QoS Guaranteed

  14. Algorithm with QoS Guaranteed • Process of reconfiguration

  15. Algorithm with QoS Guaranteed • Simulation • t1 = original algorithm • t2 = QoS Guaranteed

  16. Conclusion • Enhancement • During relay-restore performance • More robust • QoS considered • Stronger adaptability • Reference • A Refonfiguration Algorithm with QoS Guranteed in Mobile Ad-hoc Network Yingyou Wen, Yongxin Feng, Yueqiu Jiang, Guanxing Wang Research Center for Network & Communication, Northeastern University, Shenyang, Chnia ICCT2003

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