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Pedro Pablo Garrido Abenza1, Manuel P Malumbres2, Pablo Piñol3

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Summary
This summary is machine-generated.

Improving video delivery in Vehicular Ad-hoc NETworks (VANETs) is crucial. This study shows that INTRA refresh and tile coding enhance HEVC video quality despite packet losses in urban VANETs.

Keywords:
HEVCOMNeT++QoEQoSSUMOVeinsvehicular networksvideo delivery

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Area of Science:

  • Computer Science
  • Electrical Engineering
  • Telecommunications

Background:

  • Vehicular Ad-hoc NETworks (VANETs) face challenges in multimedia streaming due to high mobility, resource demands, and interference.
  • Packet losses significantly degrade video quality in VANETs, especially in urban environments with low interference.

Purpose of the Study:

  • To present a simulation framework for evaluating video delivery techniques in VANETs.
  • To investigate HEVC (High Efficiency Video Coding) options for improving perceived video quality in VANETs.
  • To enhance the resilience of video streaming services in urban VANET scenarios.

Main Methods:

  • Developed a simulation framework using OMNeT++, Veins, and SUMO.
  • Evaluated different HEVC coding options, focusing on INTRA refresh and tile coding.
  • Analyzed the impact of packet loss and interference on video quality.

Main Results:

  • Packet losses were found to significantly reduce video quality under low interference conditions in urban settings.
  • Specific INTRA refresh and tile coding strategies were identified to mitigate quality degradation.
  • The simulation framework effectively demonstrated the impact of network conditions on video delivery.

Conclusions:

  • Optimized HEVC coding, specifically INTRA refresh and tile coding, can substantially improve video delivery resilience in urban VANETs.
  • The proposed simulation framework provides a valuable tool for designing and evaluating future VANET video streaming solutions.
  • Addressing packet loss through intelligent video coding is key to reliable multimedia services in VANETs.