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Title: 基於行動醫療之正交分頻多工Ka頻帶低軌道衛星傳輸架構設計
Design of a Ka Band LEO OFDM Transport Architecture with Application to Mobile Medicine
Authors: Kuo-Tseng Chang
Contributors: NTOU:Department of Electrical Engineering
Keywords: 正交分頻多工技術;功率配置;行動醫療系統
OFDM;power assignment;mobile telemedicine systems
Date: 2008
Issue Date: 2011-07-04
Abstract: 在此篇論文中, 我們應用正交分頻多工技術在Ka頻段建置行動多衛星遠距醫療系統是一個是實行的平台。我們藉由正交分頻多工技術、多衛星傳輸架構、時空區塊碼、直接映射、功率配置機制、錯誤更正機制、通道估測、以及適應性調變技術來傳輸醫療生醫訊號。模擬的結果顯示,我們所提出的正交分頻多工Ka頻段建置行動多衛星遠距醫療系統,在四種天氣狀況晴天、小雨、中雨、大雨,三種地形城市、郊區、空曠地區,可利用通道估測和功率控制機制達成行動遠端醫療系統的服務品質,同時可達到系統最大傳輸位元率和最小傳輸功率目的。模擬結果也顯示,通道估測可移除在Ka頻段的降雨量衰減效應。
In this thesis, we propose a power assignment mechanism in Ka band orthogonal frequency division multiplexing (OFDM)-based multi-satellites mobile telemedicine. The mobile telemedicine system considers the employment of OFDM techniques, multi-satellites transmission architectures, space time block code (STBC) strategies, direct map (DM) strategies, power assignment mechanisms, unequal error protection mechanism, channel estimation, and adaptive modulation schemes in a Ka band. Simulation results show that the proposed scheme can not only fulfill the quality of services (QoS) required by a mobile telemedicine system, but can also achieve maximum transmission bit rates as well as minimum transmission power. On the other hand, channel estimation scheme can combat Ka band rain fading effect well.
Appears in Collections:[Department of Electrical Engineering] Dissertations and Theses

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