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Paper Abstract and Keywords
Presentation 2015-09-04 10:10
A Novel Rate Switching Method for Live Video Streaming via Mobile Network
Natsuki Kai, Hiroshi Yoshida, Koichi Nihei, Kozo Satoda, Dai Kanetomo (NEC Corp.)
Abstract (in Japanese) (See Japanese page) 
(in English) Live streaming services via a mobile network have become very popular.
However, playback interruption often occurs during a live streaming.
This is because TCP throughput fluctuates due to radio strength variation and cross-traffic, and the playback buffer on the client side is small.
To solve the playback interruption problem, adaptive rate control techniques are helpful.
However, feedback delay leads to control latency, which degrade the capability of the rate control.
This paper proposes a novel rate control method that uses plural codecs and detection of throughput degradation, and shows that the proposed method reduces playback interruptions.
We evaluate our proposed method with a live streaming for $600$ seconds in conditions in which the TCP throughput is fluctuated like a mobile network.
Playback interruption occurred $59$ times and lasted $46$ seconds in total with the conventional method, while playback interruption did not occur with the proposed method.
The proposed method is able to improve QoE (MOS) to $4.20$ from $2.88$ of conventional method.
Keyword (in Japanese) (See Japanese page) 
(in English) TCP Throughput / Adaptive Rate Control / Live Video Streaming / Mobile Network / / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 209, NS2015-77, pp. 35-40, Sept. 2015.
Paper # NS2015-77 
Date of Issue 2015-08-27 (NS) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380

Conference Information
Committee IN NS CS NV  
Conference Date 2015-09-03 - 2015-09-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Iwate-ken Kokaido 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Post IP networking, Next Generation Network (NGN)/New Generation Network (NWGN), Contingency Plan/BCP, Network Coding/Network Algorithms, Session Management (SIP/IMS), Internetworking/Standardization, Network configuration, etc. 
Paper Information
Registration To NS 
Conference Code 2015-09-IN-NS-CS-NV 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Novel Rate Switching Method for Live Video Streaming via Mobile Network 
Sub Title (in English)  
Keyword(1) TCP Throughput  
Keyword(2) Adaptive Rate Control  
Keyword(3) Live Video Streaming  
Keyword(4) Mobile Network  
1st Author's Name Natsuki Kai  
1st Author's Affiliation NEC Corporation (NEC Corp.)
2nd Author's Name Hiroshi Yoshida  
2nd Author's Affiliation NEC Corporation (NEC Corp.)
3rd Author's Name Koichi Nihei  
3rd Author's Affiliation NEC Corporation (NEC Corp.)
4th Author's Name Kozo Satoda  
4th Author's Affiliation NEC Corporation (NEC Corp.)
5th Author's Name Dai Kanetomo  
5th Author's Affiliation NEC Corporation (NEC Corp.)
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Date Time 2015-09-04 10:10:00 
Presentation Time 25 
Registration for NS 
Paper # IEICE-NS2015-77 
Volume (vol) IEICE-115 
Number (no) no.209 
Page pp.35-40 
#Pages IEICE-6 
Date of Issue IEICE-NS-2015-08-27 

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