نتایج جستجو برای: radio transmission
تعداد نتایج: 339363 فیلتر نتایج به سال:
—For designing maritime wireless transmission system, the radio propagation over sea surface needs to be known first. One of the distinct characteristics of maritime radio propagation is the impact of ship motions due to the fluctuation of sea waves. This paper establishes a radio propagation model with the integration of the effects of ship motions. Using such an integrated radio propagation ...
100-GHz and 300-GHz coherent radio-over-fiber transmission using optical frequency comb source Author(s): Atsushi Kanno; Toshiaki Kuri; Iwao Hosako; Tetsuya Kawanishi; Yoshihiro Yasumura; Yuki Yoshida; Ken-ichi Kitayama Millimeter-wave and sub-millimeter-wave radio-over-fiber (RoF) technology with digital-signal-processing aided coherent detection can be a promising candidate for high-speed rad...
Introduction The Great East Japan Earthquake on 11th March 2011 seriously damaged telecommunication networks, which were indispensable to share and collect information for disaster recovery activities. Telecom operators in Japan used various types of transmission media, including communication satellites, to resume services quickly [1]. Radio-wave communications can have agile deployment capabi...
2 Introduction and Background 4 Objective 5 Motivation/Problem Statement 5 Analysis/Implementation 5 Operating Band Structure 5 W-CDMA Schemes 7 Data and Chip rate 8 Channel Bandwidth 8 Spreading and Modulation 9 Transmitter Specifications 9 Receiver Sensitivity 10 Handover 10 Wideband CDMA comparisons 11 Conclusion 11 References 12
A very crucial task of a Wireless Acoustic Sensor Network (WASN) is the wireless transmission of the acoustic signal to a central fusion node. The positioned microphones experience different radio channel qualities, since they may be, e.g., positioned at different distances to the fusion node. The design of the coding and modulation scheme is usually governed by the worst-case radio channel qua...
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