Systematic Raptor Codes-Based Multipath Multimedia Transport Protocol over HetNets

This work presents a multipath multimedia transport protocol (MPMTP), which exploits path diversity over heterogeneous wireless networks. The goal of MPMTP is to provide a seamless high-quality video streaming service by using multiple wireless networks simultaneously. In MPMTP, systematic Raptor co...

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Bibliographic Details
Published in2015 IEEE 81st Vehicular Technology Conference (VTC Spring) pp. 1 - 5
Main Authors Oh Chan Kwon, Yunmin Go, Hwangjun Song
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.2015
Subjects
Encoding
Quality assessment
Receivers
Scheduling algorithms
Streaming media
Wireless networks
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Summary:This work presents a multipath multimedia transport protocol (MPMTP), which exploits path diversity over heterogeneous wireless networks. The goal of MPMTP is to provide a seamless high-quality video streaming service by using multiple wireless networks simultaneously. In MPMTP, systematic Raptor codes are adopted to mitigate video quality degradation caused by wireless channel errors, as well as to alleviate a head-of-line blocking problem in multipath environments, and their encoding parameters such as code rate, symbol size, and the number of source symbols are determined on the fly by considering the wireless channel state, Raptor encoding and decoding complexity, and receiver video buffer occupancy. Furthermore, MPMTP performs packet scheduling considering not only wireless network conditions but also packet payload characteristics for smooth video playback. The proposed MPMTP is fully implemented in a Linux kernel and examined over real wireless network environments.
ISSN:1550-2252
DOI:10.1109/VTCSpring.2015.7146119