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Paper Abstract and Keywords
Presentation 2005-01-27 09:00
Spreading-Code Assignment for Wireless P-MP Video Transmission
Hiroshi Nakamura, Ryoichi Shinkuma, Tatsuro Takahashi (Kyoto Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) In third generation (3G) mobile communication systems, the demand for wireless P-MP (Point-to-MultiPoint) transmission,
which send a single video to multiple users, has been growing.
Authors proposed a spreading-code assignment algorithm for P-MP video transmission.
This algorithm classifies mobile stations receiving a video stream into two groups - high quality and low quality,
according to their channel quality,
and controls the transmission power and the transmission rate of each group independently.
Although this scheme can improve the throughput and video quality, it needs to transform a video stream to two streams.
In this paper, we apply scalable video coding to P-MP transmission and
propose a new algorithm.
The combination P-MP transmission and scalable video coding can improve video quality drastically.
Keyword (in Japanese) (See Japanese page) 
(in English) W-CDMA / multicode transmission / point-to-multipoint transmission / scalable video coding / / / /  
Reference Info. IEICE Tech. Rep., vol. 104, no. 598, RCS2004-274, pp. 89-94, Jan. 2005.
Paper # RCS2004-274 
Date of Issue 2005-01-20 (CS, RCS) 
ISSN Print edition: ISSN 0913-5685
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Conference Information
Committee RCS CS  
Conference Date 2005-01-26 - 2005-01-28 
Place (in Japanese) (See Japanese page) 
Place (in English) University of the Ryukyus 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Broadband Wireless Access Techniques, Wireless Access Technologies for IP Networks, Optical Wireless Systems, Wireless Communication Systems, etc. 
Paper Information
Registration To RCS 
Conference Code 2005-01-RCS-CS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Spreading-Code Assignment for Wireless P-MP Video Transmission 
Sub Title (in English)  
Keyword(1) W-CDMA  
Keyword(2) multicode transmission  
Keyword(3) point-to-multipoint transmission  
Keyword(4) scalable video coding  
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1st Author's Name Hiroshi Nakamura  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Ryoichi Shinkuma  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Tatsuro Takahashi  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
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Speaker Author-1 
Date Time 2005-01-27 09:00:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # CS2004-167, RCS2004-274 
Volume (vol) vol.104 
Number (no) no.595(CS), no.598(RCS) 
Page pp.89-94 
#Pages
Date of Issue 2005-01-20 (CS, RCS) 


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