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CLC number: TN929.5

On-line Access: 2014-10-09

Received: 2014-02-16

Revision Accepted: 2014-05-24

Crosschecked: 2014-09-17

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Journal of Zhejiang University SCIENCE C 2014 Vol.15 No.10 P.929-942


Seamless handover between unicast and multicast multimedia streams

Author(s):  Mau-Luen Tham, Chee-Onn Chow, Yi-han Xu, Khong Neng Choong, Cheng Suan Lee

Affiliation(s):  Department of Electrical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia; more

Corresponding email(s):   thammauluen@siswa.um.edu.my, cochow@um.edu.my, xuyihan86@gmail.com, kn.choong@mimos.my, cslee@powerallnetworks.com

Key Words:  Experimental approach, Multimedia session continuity, Seamless handover, Unicast/multicast switching, Multi-media streaming

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Mau-Luen Tham, Chee-Onn Chow, Yi-han Xu, Khong Neng Choong, Cheng Suan Lee. Seamless handover between unicast and multicast multimedia streams[J]. Journal of Zhejiang University Science C, 2014, 15(10): 929-942.

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journal="Journal of Zhejiang University Science C",
publisher="Zhejiang University Press & Springer",

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%T Seamless handover between unicast and multicast multimedia streams
%A Mau-Luen Tham
%A Chee-Onn Chow
%A Yi-han Xu
%A Khong Neng Choong
%A Cheng Suan Lee
%J Journal of Zhejiang University SCIENCE C
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%N 10
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%@ 1869-1951
%D 2014
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.C1400052

T1 - Seamless handover between unicast and multicast multimedia streams
A1 - Mau-Luen Tham
A1 - Chee-Onn Chow
A1 - Yi-han Xu
A1 - Khong Neng Choong
A1 - Cheng Suan Lee
J0 - Journal of Zhejiang University Science C
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.C1400052

With the deployment of heterogeneous networks, mobile users are expecting ubiquitous connectivity when using applications. For bandwidth-intensive applications such as Internet Protocol Television (IPTV), multimedia contents are typically transmitted using a multicast delivery method due to its bandwidth efficiency. However, not all networks support multicasting. Multicasting alone could lead to service disruption when the users move from a multicast-capable network to a non-multicast network. In this paper, we propose a handover scheme called application layer seamless switching (ALSS) to provide smooth real-time multimedia delivery across unicast and multicast networks. ALSS adopts a soft handover to achieve seamless playback during the handover period. A real-time streaming testbed is implemented to investigate the overall handover performance, especially the overlapping period where both network interfaces are receiving audio and video packets. Both the quality of service (QoS) and objective-mapped quality of experience (QoE) metrics are measured. Experimental results show that the overlapping period takes a minimum of 56 and 4 ms for multicast-to-unicast (M2U) and unicast-to-multicast (U2M) handover, respectively. The measured peak signal-to-noise ratio (PSNR) confirms that the frame-by-frame quality of the streamed video during the handover is at least 33 dB, which is categorized as good based on ITU-T recommendations. The estimated mean opinion score (MOS) in terms of video playback smoothness is also at a satisfactory level.


重要结论:实验结果表明,在网络的重叠区域内,多播网络—单播网络和单播网络—多播网络的切换时间分别为56毫秒和4毫秒。依据ITU-T建议书,利用本文方法得到的视频画质被归为"好"。平均意见得分(mean opinion score, MOS)证实了视频播放流畅度。

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


[1]Åström, B., Edlund, P., 2009. Switching Between Delivery Methods in an IPTV Communication Network. US Patent 20110067081 A1.

[2]Brooks, P., Hestnes, B., 2010. User measures of quality of experience: why being objective and quantitative is important. IEEE Network, 24(2):8-13.

[3]Chan, A., Zeng, K., Mohapatra, P., et al., 2010. Metrics for evaluating video streaming quality in lossy IEEE 802.11 wireless networks. IEEE INFOCOM, p.1-9.

[4]Choong, K.N., Lee, C.S., Tham, M.L., et al., 2011. Prototype implementation of a connection handover system for video streaming with different delivery methods. 17th Asia-Pacific Conf. on Communications, p.794-799.

[5]Cunningham, G., Perry, P., Murphy, J., et al., 2009. Seamless handover of IPTV streams in a wireless LAN network. IEEE Trans. Broadcast., 55(4):796-801.

[6]Hilt, B., Sarni, M., Lorenz, P., 2009. Enhancement of channel switching scenario and IGMPv3 protocol implementation in multicast IPTV networks. Int. J. Adv. Networks Serv., 2(2-3):167-181.

[7]ISO, 1996. ISO/IEC 13818-1:1996. Information Technology— Generic Coding of Moving Pictures and Associated Audio Information: Systems. International Organization for Standardization, Geneva.

[8]ITU, 2002. ITU-R Recommendation BT.500-11. Methodology for the Subjective Assessment of the Quality of Television Pictures. International Telecommunication Union, Geneva.

[9]ITU-T, 2008. Recommendation P.910. Telephone Trans-mission Quality, Telephone Installations, Local Line Network. International Telecommunication Union, Geneva.

[10]Kiraly, C., Abeni, L., Lo Cigno, R., 2010. Effects of P2P streaming on video quality. IEEE ICC, p.1-5.

[11]Lu, G., 2010. Enable multimedia mobility with IEEE 802.21. IEEE WoWMoM, p.1-6.

[12]Namburi, P., Sarac, K., Almeroth, K., 2006. Practical utilities for monitoring multicast service availability. Comput. Commun., 29(10):1675-1686.

[13]Piamrat, K., Singh, K.D., Ksentini, A., et al., 2010. QoE-aware scheduling for video-streaming in high speed downlink packet access. IEEE WCNC, p.1-6.

[14]Pitsillides, A., Christophorou, C., 2007. MBMS handover control: a new approach for efficient handover in MBMS enabled 3G cellular networks. Comput. Networks, 51(18): 4897-4918.

[15]Politis, I., Dounis, L., Dagiuklas, T., 2010. H.264/SVC vs. H.264/AVC video quality comparison under QoE driven seamless handoff. Signal Process. Image Commun., 27(8):814-826.

[16]Quadros, C., Cerqueira, E., Neto, A., et al., 2013. A quality of experience handover system for heterogeneous multimedia wireless networks. IEEE ICNC, p.1064-1068.

[17]Saxena, N., Roy, A., 2011. Novel framework for proactive handover with seamless multimedia over WLANs. IET Commun., 5(9):1204-1212.

[18]Tong, S.R., Yang, S.H., 2008. Buffer control to support a seamless stream handoff in a WLAN that employs simulcast streaming. IEEE Trans. Wirel. Commun., 7(1): 260-268.

[19]Wang, Z., Bovik, A.C., Sheikh, H.R., et al., 2004. Image quality assessment: from error visibility to structural similarity. IEEE Trans. Image Process., 13(4):600-612.

[20]Xu, X., Cui, Y., Liu, J., et al., 2013. Seamless handover scheme for real-time multimedia services in PMIPv6. CHINACOM, p.834-839.

[21]Xu, Y.H., Chow, C.O., Tham, M.L., et al., 2014. An enhanced framework for providing multimedia broadcast/ multicast service over heterogeneous networks. J. Zhejiang Univ.-Sci. C (Comput. & Electron.), 15(1):63-80.

[22]Younkin, A., Corriveau, P., 2008. The effects of quantity and location of video playback errors on the average end-user’s experience. IEEE BMSB, p.1-5.

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