Wireless network synchronization for multichannel multimedia services

Authors:
Yonghwan Bang;Jongpil Han;Kyusang Lee;Jongwon Yoon;Jinoo Joung;Sungbo Yang;June-Koo Kevin Rhee
Affiliations:
School of Engineering, Information and Communications University, Daejeon, S. Korea;School of Engineering, Information and Communications University, Daejeon, S. Korea;School of Engineering, Information and Communications University, Daejeon, S. Korea;Computer Science, Sangmyung University, Seoul, S. Korea;Computer Science, Sangmyung University, Seoul, S. Korea;Advanced Information Research Team, Hyundai Motor Co., Seoul, S. Korea;School of Engineering, Information and Communications University, Daejeon, S. Korea
Venue:
ICACT'09 Proceedings of the 11th international conference on Advanced Communication Technology - Volume 2
Year:
2009

Citing 5
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Abstract

When a single source of multimedia contents is distributed to multiple reproduction devices, the audio and video contents require synchronous play for multi-channel stereo sound and lip-synchronization. This paper investigates capability of IEEE 802.11n wireless LANs for providing synchronized services of real-time multimedia traffic. We implement IEEE 1588 Precision Time Protocol in wireless LAN devices to characterize delay jitter and clock synchronization accuracy. The results indicate a strong potential to provide a high fidelity real-time multi-channel multimedia networking service within 430-microsecond synchronization accuracy at an approximately 80 Mbps streaming rate.