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检索条件"主题词=Multicode"
56 条 记 录,以下是51-60 订阅
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Performance analysis of a new multi-code high-speed mobile radio transmission scheme using cyclic modified M-sequence
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IEICE TRANSACTIONS ON COMMUNICATIONS 2000年 第9期E83B卷 2056-2067页
作者: Harada, H Minist Posts & Telecommun Commun Res Lab Yokosuka Kanagawa 2390847 Japan
This paper proposes a new parallel high speed mobile radio transmission scheme using cyclic-shifted-codes generated from a modified M-sequence. The modified M-sequence is biased with constant direct current (dc) on an... 详细信息
来源: 评论
An enhanced DQRUMA/MC-CDMA protocol for wireless packet networks
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IEICE TRANSACTIONS ON COMMUNICATIONS 2000年 第7期E83B卷 1567-1571页
作者: Park, JY Kim, DK Sung, DK Korea Adv Inst Sci & Technol Dept Elect Engn Yusong Gu Taejon 305701 South Korea NTT DoCoMo R&D Ctr Yokosuka Kanagawa 2398536 Japan
The original DQRUMA/MC-CDMA protocol may suffer severe code collisions due to a limited number of request codes. An enhanced DQRUMA/MC-CDMA protocol using minislots for request accesses is proposed to reduce request c... 详细信息
来源: 评论
Optical multimedia CDMA system with novel multiplexing techniques
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MICROWAVE AND OPTICAL TECHNOLOGY LETTERS 1999年 第6期22卷 424-426页
作者: Lee, YH Tamkang Univ Dept Elect Engn Tamsui 25137 Taiwan
Forts novel multiplexing techniques (VSM, PSM RPM, OIM) of an optical multimedia CDMA system haw been proposed by using prime codes with different code lengths. PSM and VSM have the advantages of easily adding and con... 详细信息
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Simulation study of different code system division multiple access (DCSDMA) for optical communication
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MICROWAVE AND OPTICAL TECHNOLOGY LETTERS 1999年 第4期21卷 291-295页
作者: Lee, YH Tamkang Univ Dept Elect Engn Tamsui Taipei Hsien Taiwan
In this paper, we propose a novel structure using different code system division multiple access (DCSDMA) for an optical communication system and a design algorithm to increase the system capacity. This DCSDMA system ... 详细信息
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Application of the VLC parallel transmission technique to motion vector transmission
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IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES 1999年 第12期E82A卷 2778-2782页
作者: Kasai, T Sanada, Y Araki, K Tokyo Inst Technol Fac Engn Meguro Ku Tokyo 1528552 Japan
Recently portable computers and mobile communications have been developed rapidly. Along with the developments of mobile computing environment, the demands of transmitting images over wireless channels are growing. Ho... 详细信息
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An advanced channel access scheme for integrated multimedia services with various bit rates in CDMA networks
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IEEE COMMUNICATIONS LETTERS 1999年 第4期3卷 91-93页
作者: Park, KS Cho, DH Mediacomm Inc Korea Adv Inst Sci & Technol R&D Ctr Seoul 130012 South Korea Korea Adv Inst Sci & Technol Dept Elect Engn Taejon 305701 South Korea
For efficient code sharing among users, a wireless medium access control (MAC) protocol for CDMA networks is proposed, which supports connection-oriented, as well as connectionless, services and provides the various b... 详细信息
来源: 评论