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Workcell Concatenation Using WiFi -Based Wireless Networked Control Systems

SEAD GROUP American University in Cairo. Workcell Concatenation Using WiFi -Based Wireless Networked Control Systems. Tarek Refaat , Ramez Daoud , Mai Hassan, Hassanein Amer , Omneya Sultan. Agenda. Previous Work Proposed Model Simulated Scenarios OPNET Simulation Results

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Workcell Concatenation Using WiFi -Based Wireless Networked Control Systems

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  1. SEAD GROUPAmerican Universityin Cairo Workcell Concatenation Using WiFi-Based Wireless Networked Control Systems TarekRefaat, RamezDaoud, Mai Hassan,HassaneinAmer, Omneya Sultan

  2. Agenda • Previous Work • Proposed Model • Simulated Scenarios • OPNET Simulation Results • Conclusions

  3. Previous Work • Single-Cell • Results • Noiseless: • Correct Packet Transmission & Reception • Max Delay of 2.5ms per link • Effect of Noise: • Correct Packet Transmission & Reception • Max Delay of 14.8ms per link

  4. Goal Concatenation of Identical Industrial Workcells Based on WiFi without Modification

  5. Proposed Model Reused Channel

  6. Simulation Stages

  7. ISM Band Interference Alien Node Ch6 Ch1 Ch6 Ch1 Ch6 Ch11 Ch1 Ch11 Ch1 Alien Node Ch11

  8. OPNET Simulation Results Maximum FTP and Delays Per Scenario at 3m & -50dBm PRPT

  9. OPNET Results End-to-end delay from K to A in absence of noise

  10. OPNET Results End-to-end delay from K to A in presence of noise

  11. Conclusions • Concatenating Industrial Workcells using WiFi is Achievable. • Minimum Inter-Cell Distance = 3mwith PRPT = -50dBm • All Delays are within Acceptable Ranges with 95% Confidence Analysis • The System Operates Successfully with Zero Packet Loss in Presence of Noise due to Co-Channel Interference and ISM Band

  12. SEAD GROUPAmerican Universityin Cairo Thank You

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