The 802.11 protocols usage for wireless systems construction with - - PowerPoint PPT Presentation

The 802.11 protocols usage for wireless systems construction with flexible architecture

National Technical University of Ukraine “Kyiv Polytechnic Institute”

Institute of Telecommunication Systems

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Leonid Uryvsky, DSc., Prof., Presenter  Serhiy Osypchuk, PhD, Assistant, Bogdan Shmigel, Stud.

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“The 802.11 protocols usage for wireless systems construction with flexible architecture”, presenter: Serhiy Osypchuk

Agenda

• 1. Problem statement
• 2. Laboratory network diagram built on 802.11

devices

• 3. Communication backbone line scheme
• 4. Communication backbone line theoretical

analysis

• 5. Communication backbone line laboratory and

real link testing

• 6. Conclusion

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“The 802.11 protocols usage for wireless systems construction with flexible architecture”, presenter: Serhiy Osypchuk

• 1. Problem statement

Requirements to networks:

• High speed (tens, hundreds of Mb/s or even Gb/s)
• Data transfer reliability and security
• Network availability

Problem: quick deployment of data transfer networks for long-term or short-term usage to satisfy the above requirements Applicability: wide range of users, public and corporate organizations, government structures Network components: transport, last mile Transport + last mile component = self-sufficient network Wireless standards 802.11 a/b/g/n/ac and newer: broadband frequencies, high modulation schemes, high-speed transmission  satisfy requirements, and (!) 802.11 solutions could be used not only for last mile access, but for transport networks too

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“The 802.11 protocols usage for wireless systems construction with flexible architecture”, presenter: Serhiy Osypchuk

• 2. Laboratory network diagram built on

802.11 devices

Phone1 10.0.0.111/8

5-40 km, 802.11ac

RB/921UAGS- 5SHPacT-NM 10.0.0.5/8 PC1 10.0.0.101/8 RB/921UAGS- 5SHPacT-NM 10.0.0.6/8

Phone2 10.0.0.112/8

1-100m Groove A-52HPn 10.0.0.25/8 DHCP

RB951G-2HnD Router

PC2 10.0.0.102/8

1-5 km, 802.11n

PC3 10.0.0.103/8

D A B C

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“The 802.11 protocols usage for wireless systems construction with flexible architecture”, presenter: Serhiy Osypchuk

• 3. Communication backbone line scheme

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11.56 km, 802.11ac RB/921UAGS-5SHPacT- NM 10.0.0.6/8 AT 10.0.0.102/8 RB/921UAGS-5SHPacT- NM 10.0.0.5/8 Switch Voice phone Voice phone AT 10.0.0.101/8 Switch VoIP adapter VoIP adapter

Testing scheme for CB line based on transceivers MikroTik RB/921UAGS-5SHPacT-NM with antennas MikroTik MTAD-5G-30D3-PA

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“The 802.11 protocols usage for wireless systems construction with flexible architecture”, presenter: Serhiy Osypchuk

• 4. Communication backbone line

theoretical analysis

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“The 802.11 protocols usage for wireless systems construction with flexible architecture”, presenter: Serhiy Osypchuk

• 5. Communication backbone line

laboratory and real link testing

The profile of real CB line 11.56 km Laboratory results of testing CB line based on MikroTik RB/921UAGS- 5SHPacT-NM devices: TCP, UDP and modulation-coding scheme (MCS) rates using two spatial channels Testing the TCP data rate in proprietary MikroTik tool - WinBox (!) Achieved data rates in CB line avg 133 Mbps in simplex transmission mode, and up to 60 Mbps in full-duplex transmission mode for TCP traffic. The signal level on the receiver input -43 dBm.

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“The 802.11 protocols usage for wireless systems construction with flexible architecture”, presenter: Serhiy Osypchuk

• 6. Conclusion

Construction of high-speed wireless data transfer with flexible architecture based on 802.11 standards is considered including basic architecture elements for flexible network: router, access point and communication backbone links Theoretical calculation, laboratory testing and real communication backbone line testing is performed. The coincidence of given results

• n real communication backbone link, laboratory testing and

theoretical link analysis is shown Performed tests of backbone line under real conditions showed predictability of parameters calculated for radio link, what proves that theoretical analysis and laboratory tests methodic is valid for networks design with flexible architecture based on the 802.11 equipment

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“The 802.11 protocols usage for wireless systems construction with flexible architecture”, presenter: Serhiy Osypchuk

Thank you for attention!