National Technical University of Ukraine “Kyiv Polytechnic Institute” Institute of Telecommunication Systems The 802.11 protocols usage for wireless systems construction with flexible architecture Leonid Uryvsky , DSc., Prof., Presenter Serhiy Osypchuk , PhD, Assistant, Bogdan Shmigel , Stud. 1
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 2 “ 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 3 “ 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 Phone2 10.0.0.111/8 10.0.0.112/8 5-40 km, 802.11ac RB/921UAGS- RB/921UAGS- 5SHPacT-NM 5SHPacT-NM 10.0.0.6/8 10.0.0.5/8 PC1 10.0.0.101/8 D 1-100m 1-5 km, 802.11n RB951G-2HnD Groove A-52HPn Router 10.0.0.25/8 DHCP PC3 A B C 10.0.0.103/8 PC2 10.0.0.102/8 4 “ The 802.11 protocols usage for wireless systems construction with flexible architecture ”, presenter: Serhiy Osypchuk
3. Communication backbone line scheme 1 2 11.56 km, 802.11ac RB/921UAGS-5SHPacT- RB/921UAGS-5SHPacT- NM NM 10.0.0.5/8 10.0.0.6/8 Switch VoIP adapter Switch VoIP adapter AT Voice phone Voice phone AT 10.0.0.102/8 10.0.0.101/8 Testing scheme for CB line based on transceivers MikroTik RB/921UAGS-5SHPacT-NM with antennas MikroTik MTAD-5G-30D3-PA 5 “ The 802.11 protocols usage for wireless systems construction with flexible architecture ”, presenter: Serhiy Osypchuk
4. Communication backbone line theoretical analysis 6 “ 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 (!) 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. Laboratory results of testing CB line based on MikroTik RB/921UAGS- 5SHPacT-NM devices: TCP, UDP and modulation-coding scheme (MCS) Testing the TCP data rate in proprietary rates using two spatial channels MikroTik tool - WinBox 7 “ The 802.11 protocols usage for wireless systems construction with flexible architecture ”, presenter: Serhiy Osypchuk
6. Conclusion C onstruction 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 T heoretical calculation, laboratory testing and real communication backbone line testing is performed. The coincidence of given results on real communication backbone link, laboratory testing and theoretical link analysis is shown P erformed 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 8 “ The 802.11 protocols usage for wireless systems construction with flexible architecture ”, presenter: Serhiy Osypchuk
Thank you for attention! 9 “ The 802.11 protocols usage for wireless systems construction with flexible architecture ”, presenter: Serhiy Osypchuk
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