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OSU-OKI Collaboration on Wireless Safety and Comfort Technologies: Phase 2 Development Plan

The OSU-OKI Development Plan Phase 2 outlines cutting-edge R&D focused on enhancing vehicle safety and comfort. Targeting advanced collision avoidance systems like left turn assistance and intersection safety, this plan incorporates performance evaluation through simulation and field tests. Key developments include a prototype for a driver-fellow passenger communication system and optimized wireless communication using new Oki radios and WLAN. This collaboration aims at refining safety applications while ensuring high-quality wireless communication standards, ultimately aiming for a reduction in traffic accidents.

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OSU-OKI Collaboration on Wireless Safety and Comfort Technologies: Phase 2 Development Plan

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  1. Phase 2 Development Plan between OSU and OKIVer.0.2 2003.11.16 Kiyohito Tokuda Wireless Technology R&D Department SSC(System Solutions Company), Oki Electric Industry Co.,Ltd E-mail: tokuda315@oki.com OSU-OKI Meeting

  2. Our R&D Target ◆Safety: Driving Assistant ・Collision Avoidance System at Intersection - Left Turn Assistant - Crossing Collision Avoidance ◆Comfort (Including Amusement) ・Chat System with Voice ・Information Exchange for Driver/Fellow Passenger 1) Performance Evaluation with Simulation and Field Test 2) Development of Prototype → Demonstration OSU-OKI Meeting

  3. Retransmission Phase 1 Phase 2 Success Veh.1 Veh.1 1 Collision 1 Success 2 Collision Veh.2 Veh.2 1 1 Success Veh.3 Veh.3 1 1 2 Fading Fading Success Shadowing Shadowing Veh.n Veh.n 1 1 2 Transmission Number=1 Transmission Number>1 Each Vehicle Broadcasts a packet within data updating interval Each Vehicle Broadcasts packets within data updating interval Parameters: -Data Updating Interval -Transmission(Retransmission) Interval -Packet Data Size -Vehicle Number etc. OSU-OKI Meeting

  4. Broadcast Mechanism Phase 1 Phase 2 Transmission Interval Packet Veh.1 Veh.1 50m Collision Packet Veh.2 Veh.2 50m Veh.3 Veh.3 50m Veh.n Veh.n 50m Constant Interval Transmission Type Event Driven Type Each Vehicle Broadcasts a packet when 50 meters away from an intersection Each Vehicle Broadcasts packets with constant interval Parameters: -Transmission Interval -Packet Data Size -Vehicle Number etc. OSU-OKI Meeting

  5. PHY Layer Phase 1 Phase 2 1) Single Path Model 2) SNR Threshold Based Model (No Considering Modulation Type) 3) No Building at Intersection 1) Multi-Path Model (Reflection & Diffraction) 2) Considering Modulation Type 3) Buildings at Intersection Parameters: -Number of Multi-Path -Modulation Type(QPSK, OFDM) -Type of Building etc. OSU-OKI Meeting

  6. IVC Simulator Phase 1 Vehicle Traffic Simulator Wireless Simulator Trace Files Results - VTS and WS Runs independently each other. - It is difficult to evaluate QoS of safety application. Phase 2 Vehicle Traffic Simulator Wireless Simulator Results - VTS and WS Runs Simultaneously. - It is possible to evaluate QoS of safety application and reduction effect of traffic accident rate with IVC. OSU-OKI Meeting

  7. Plan for Phase 1 <Phase1:Feasibility Study>2002.05-2003.12 • Investigation of Wireless-LAN(IEEE 802.11x) Specification • Simulation Study and Analysis on Communication QoS Needs for Intersection Applications - Utilizing W-LAN/Oki Radios(DOLPHIN) - Utilizing New Oki Radios ↓ Modifythis simulator and advance simulation study in Phase 2 OSU-OKI Meeting

  8. Plan for Phase 2 (2004.01-2004.06) <Phase2:Simulation>2004.01-2004.06 • Simulation Study and Analysis on Communication QoS Needs for Intersection Applications Utilizing New Oki Radios and W-LAN - Retransmission - Broadcast Mechanism - Multi-Path Model - Consider Modulation Type - Evaluate QoS of Safety Applications OSU-OKI Meeting

  9. Plan for Phase 2 (2004.07-2004.12) <Phase2:Development & Field Test>2004.07-2004.12 • Production of Wireless Communication System with New Oki Radios (5.8 GHz DSRC,T75++) and W-LAN - GUI - Interface • Field Test and Performance Estimation 1) Left Turn Assistant - Utilize W-LAN/New Oki Radios 2) Crossing Collision Avoidance - Utilize Both New Oki Radios and W-LAN • Demonstration for Car Companies OSU-OKI Meeting

  10. Time Table Phase 1 Phase 2 03/ 11 04/ 01 10 12 02 03 04 05 06 07 08 09 11 12 Meeting & Demo OSU & OKI Meeting Meeting Meeting & Field Test Meeting & Demo Phase 1 Report Mini- Report of Simulation Retransmission Event Driven Type - W-LAN/DOLPHIN Broadcast Mechanism -Constant Interval Transmission Type Simulation OSU Event Driven Type - New Oki Radios Multi-Path(Considering Buildings) Consider Modulation Type (QPSK, OFDM) Evaluate QoS of Safety Applications (VTS & WS Run Simultaneously) Product Prototype GUI OSU Interface OKI Interface Product New Oki Radios OSU Field Test Field Test Phase 2 Report OSU-OKI Meeting OKI Develop Software for Field Test

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