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Urszula Ostrowska Tutor: Marek Amanowicz, Prof. AN ADAPTATION GENERATED PACKET STREAM IN SECURE NARROWBAND NETWORK IPV6.

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Presentation on theme: "Urszula Ostrowska Tutor: Marek Amanowicz, Prof. AN ADAPTATION GENERATED PACKET STREAM IN SECURE NARROWBAND NETWORK IPV6."— Presentation transcript:

1 Urszula Ostrowska Tutor: Marek Amanowicz, Prof. AN ADAPTATION GENERATED PACKET STREAM IN SECURE NARROWBAND NETWORK IPV6

2 An adaptation generated packet stream in secure narrowband IPv6 network2/16 Presentation scheme I.VoIPv6 application II.Requirements for IPSec procedure III.Procedure: header compression IPSec/IPv6, packet multiplexation RT i NRT IV.Test bed configuration V.Research results VI.Summary VII.Future tasks

3 An adaptation generated packet stream in secure narrowband IPv6 network3/ ms 200 ms 62.5 ms Codecs in VoIPv6 application a. Codec MELP 1200 bps – packet length 95 B b. Codec MELP 2400 bps – packet length 119 B c. Codec CELP 4800 bps – packet length 101 B

4 An adaptation generated packet stream in secure narrowband IPv6 network4/16 VoIPv6 application Codec change:  for value b < 5.8 kbps - MELP 1200 bps  for value 5.8 kbps < b < 11.2kbps - MELP 2400 bps  for value b > 11.2 kbps - CELP 4800 bps

5 An adaptation generated packet stream in secure narrowband IPv6 network5/16 Expectations for header compression and security mechanism  Reduce large information redundancy in IPv6 and IPSec protocols  Improve efficiency assurance used channel capacity in mobile network for real time stream (RT) and data (NRT)  Provide security information assurance

6 An adaptation generated packet stream in secure narrowband IPv6 network6/16 1)Perform RT service in IPv6 narrowband network 2)Classification and prioritization of RT and NRT packets 3)RT and NRT stream multiplexing mechanism 4)RT packet header compression 5)NRT packet and control packet segmentation 6)Use standard IPSec mechanism Requirements for IPSec procedure

7 An adaptation generated packet stream in secure narrowband IPv6 network7/16 Compression and multiplexing mechanism RT and NRT packets RT NRT RT NRT

8 An adaptation generated packet stream in secure narrowband IPv6 network8/16 RT NRT RT NRT Decompression and assemblation mechanism RT and NRT packets

9 An adaptation generated packet stream in secure narrowband IPv6 network9/16 RT and NRT multiplexing mechanism 40 Throughput 19.2 kbps Output multiplex stream VoIPv6 packet stream with codec 1200 bps Length NRT packet 1512B = 3x384B + 1x360B 200 ms ms160 ms 145 ms160 ms145 ms 160 ms 145 ms 200 ms ms ms ms40160 ms ms40160 ms ms ms40160 ms40160 ms 40

10 An adaptation generated packet stream in secure narrowband IPv6 network10/16 Test bed configuration Duplex channel 9,6 kbps Network 100Mbps Network 100Mbps Eth0 IPv6: 3ffe:ffff:0:ff33::2/64 Eth0 IPv6: 3ffe:ffff:0:ff33::1/64 Eth0 IPv6: 3ffe:ff::2/64 Eth0 IPv6: 3ffe:ff::2/64

11 An adaptation generated packet stream in secure narrowband IPv6 network11/16 Test results of segmentation and assemblation mechanism NRT packets

12 An adaptation generated packet stream in secure narrowband IPv6 network12/16 Test results of quality of RT service Time NA with CompIPSecv6 and NRT packet = 107B NA with CompIPSecv6 and NRT packet = 1300B PcPhone + NA and NRT packet = 107B PcPhone + NA and NRT packet = 1300B PcPhone and NRT packet = 107B PcPhone and NRT packet = 1300B

13 An adaptation generated packet stream in secure narrowband IPv6 network13/16 Summary (1)  Mechanism assurance efficient of IPv6 protocol in narrowband channel thanks to double header compression (IPv6+IPSec)  Mechanism assurance RT and NRT multiplexation and helps to succour QoS  Packet stream is secured by encryption methods available in IPSec

14 An adaptation generated packet stream in secure narrowband IPv6 network14/16 Summary (2) Mechanism of automatic codec change supports Quality of Service in VoIPv6 in case of network congestions VoIPv6 application performs procedure of available throughput measurement using VoIPv6 data stream

15 An adaptation generated packet stream in secure narrowband IPv6 network15/16 Future tasks  Research of mechanism in radio network (communication KF i UKF)  Research of influence cryptographic method on QoS RT data  Implement additional speech codecs in PC_Phone application  Research of influence of rapid codec change on time gap inserted into speech  Research of accuracy of measured throughput in VoIPv6 application

16 An adaptation generated packet stream in secure narrowband IPv6 network16/16


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