下一代车联网多媒体应用的自适应QoS机制

2010 5th International ICST Conference on Communications and Networking in China Pub Date : 2010-12-01 DOI:10.4108/CHINACOM.2010.120

Jiann-Liang Chen, Yi-Wei Ma, Yueh-Min Huang, Qing-Tai Yang

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引用次数: 5

摘要

本研究针对新一代车载多媒体网路，提出一种新的IEEE 802.21媒体独立切换(MIH)机制。提出了一种自适应QoS管理机制。该框架通过获取接收信号强度参数，确定最佳可用网络。自适应QoS机制大大提高了实时多媒体应用的性能。仿真结果表明，在车载网络中采用MIH机制时，平均切换时间比UMTS和WiMAX都要慢。然而，仿真结果证实，使用IEEE 802.21 MIH机制可以提高整体吞吐量。增加的吞吐量是对增加的切换时间的满意补偿。

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An Adaptive QoS mechanism for multimedia applications over next generation vehicular network

This study develops a novel IEEE 802.21 MIH (Media Independent Handover) mechanism for next generation vehicular multimedia network. An adaptive QoS management mechanism is also proposed. By obtaining received signal strength parameters, the proposed MIH framework can determine the best available network. The adaptive QoS mechanism substantially improves the performance of real-time multimedia applications. The simulation results show that average handover time is slower than both UMTS and WiMAX when the MIH mechanism is used in vehicular network. However, the simulation results confirm that using the IEEE 802.21 MIH mechanism can increase overall throughput. Increased throughput is satisfactory compensation for increased handover time.

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来源期刊

2010 5th International ICST Conference on Communications and Networking in China

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