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MicroPlay : A Networking Framework for Local Multiplayer Games

MicroPlay : A Networking Framework for Local Multiplayer Games. A. Le † , L. Keller ‡ , C. Fragouli ‡ , A. Markopoulou † † U niversity of California, Irvine ‡ École Polytechnique Fédérale de Lausanne. Mobile Games are the Killer Apps.

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MicroPlay : A Networking Framework for Local Multiplayer Games

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  1. MicroPlay: A Networking Frameworkfor Local Multiplayer Games A. Le †, L. Keller ‡, C. Fragouli‡,A. Markopoulou † † University of California, Irvine ‡ École Polytechnique Fédérale de Lausanne

  2. Mobile Games are the Killer Apps • Platform with enormous growth rate:700 million (2011) – 2.2 billion (2016) • Games dominated App Stores Out of Top 10 Paid Apps: - iOS: 6 are games - Android: 4 are games • Bike Baron: - Finnish developer: 7 employees- 1 million revenuein 3 months MicroPlay: Networking Framework for Smartphone Games

  3. Local Multiplayer Games • Highly entertaining • Social interaction- Team building MicroPlay: Networking Framework for Smartphone Games

  4. Smartphones are an Ideal Platform for Local Multiplayer Games • Powerful: - Quad-core CPU, Quad-core GPU • Rich connectivity:- 4G, WiFi, Bluetooth, NFC • Portability:- Carried all the time- Small footprint- Operate on battery MicroPlay: Networking Framework for Smartphone Games

  5. Overview of MicroPlayKey Design Aspects and Benefits • Characteristics of Local Multiplayer Games • Common wireless network, e.g., WiFi • Close proximity of players • Game is hosted locally • Avoid large latency from remote server • Support spontaneous, on-demand setup • Exploit WiFi overhearing • Reduce latency and overhead • Simplify game development MicroPlay: Networking Framework for Smartphone Games

  6. Outline • Introduction • Regular Networking • MicroPlay Networking • Performance Evaluation • Conclusion MicroPlay: Networking Framework for Smartphone Games

  7. Regular Networking Model MicroPlay: Networking Framework for Smartphone Games

  8. Game Latency and Player RenderingRegular Scheme MicroPlay: Networking Framework for Smartphone Games

  9. Game Latency and Player RenderingRegular Scheme MicroPlay: Networking Framework for Smartphone Games

  10. Game Latency and Player RenderingRegular Scheme MicroPlay: Networking Framework for Smartphone Games

  11. Game Latency and Player RenderingRegular Scheme MicroPlay: Networking Framework for Smartphone Games

  12. Game Latency and Player RenderingRegular Scheme MicroPlay: Networking Framework for Smartphone Games

  13. Game Latency and Player RenderingRegular Scheme MicroPlay: Networking Framework for Smartphone Games

  14. Game Latency and Player RenderingRegular Scheme MicroPlay: Networking Framework for Smartphone Games

  15. Outline • Introduction • Regular Networking • MicroPlay Networking • Performance Evaluation • Conclusion MicroPlay: Networking Framework for Smartphone Games

  16. MicroPlay Networking Model MicroPlay: Networking Framework for Smartphone Games

  17. Game Latency and Player RenderingMicroPlay MicroPlay: Networking Framework for Smartphone Games

  18. Game Latency and Player RenderingMicroPlay MicroPlay: Networking Framework for Smartphone Games

  19. Game Latency and Player RenderingMicroPlay MicroPlay: Networking Framework for Smartphone Games

  20. Game Latency and Player RenderingMicroPlay MicroPlay: Networking Framework for Smartphone Games

  21. Benefits of Overhearingin MicroPlay networking • Very low game latency- No interpolation is needed- Loss of state packet is not critical • Precise rendering- All rendering is based on inputsRendering of remote players can be done similar to the local player! • Simplified game development - No prediction (inter/extrapolation) is needed MicroPlay: Networking Framework for Smartphone Games

  22. MicroPlay Architecture MicroPlay: Networking Framework for Smartphone Games

  23. Outline • Introduction • Regular Networking • MicroPlay Networking • Performance Evaluation • Conclusion MicroPlay: Networking Framework for Smartphone Games

  24. Racer: Car Racing Game on MicroPlay MicroPlay: Networking Framework for Smartphone Games

  25. Racer: Car Racing Game on MicroPlay MicroPlay: Networking Framework for Smartphone Games

  26. Racer: Car Racing Game on MicroPlay MicroPlay: Networking Framework for Smartphone Games

  27. Racer: Car Racing Game on MicroPlay MicroPlay: Networking Framework for Smartphone Games

  28. Evaluation: Dissemination TimeCan overhearing help disseminating packets faster? MicroPlay: Networking Framework for Smartphone Games

  29. Evaluation: Overhearing QualityHow reliable is direct-input rendering? Server 2.7 m 3.5 m MicroPlay: Networking Framework for Smartphone Games

  30. Evaluation: Overhearing QualityHow reliable is direct-input rendering? MicroPlay: Networking Framework for Smartphone Games

  31. Conclusion MicroPlay: A Networking Framework for Local Multiplayer Games • Host game locally • Exploit broadcast nature of wireless medium Key benefits: • Spontaneous, on-demand setup • Simplified game development • Very low game latency MicroPlay: Networking Framework for Smartphone Games

  32. Live Demo(During Coffee Break) MicroPlay: Networking Framework for Smartphone Games

  33. Evaluation: Sync Errors4 Phones in a room MicroPlay: Networking Framework for Smartphone Games

  34. Evaluation: Overhearing Quality6 Phones on a line MicroPlay: Networking Framework for Smartphone Games

  35. Evaluation: Overhearing Quality4 Phones on a Table MicroPlay: Networking Framework for Smartphone Games

  36. Evaluation: Overhead of Sending a State Packet from the Server MicroPlay: Networking Framework for Smartphone Games

  37. MicroPlay with Network Coding Inter-Session Network Coding • Reliability, extended range • Gesture-Flow [Feng 2011] MicroPlay: Networking Framework for Smartphone Games

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