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題 名 | 行通無線通信通道軟體模擬程式之設計=Software Simulator for Mobile Wireless Communication Channel |
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作 者 | 陳瓊華; | 書刊名 | 電信研究 |
卷 期 | 30:2 2000.04[民89.04] |
頁 次 | 頁135-147 |
分類號 | 448.82 |
關鍵詞 | 無線通信; 多路徑干擾; Wireless; Multipath interference; |
語 文 | 中文(Chinese) |
中文摘要 | 在移動無線通信環境中,由於電波受到障礙物反射、繞射、散射等因素造成多路徑干擾(multipath interference),以及由於移動接收所造成的都卜勒效應(Doppler effect),都會使得傳送的信號受到嚴重的干擾,影響傳輸品質。在本文中,我們將設計一軟體程式來模擬Rayleigh衰落(fading)通道(Jakes模型),並以此模擬程式為基礎,可以很容易擴充為模擬GSM、IS95、WCDMA所規定的市區、郊區以及室內環境,受到多路徑干擾及都卜勒效應影響的移動無線通信通道的軟體產生器。當我們欲對移動無線通信環境進行系統驗證,或者設計移動無線通信發射或接收機時,就可以很有效率的利用此一程式來做為模擬各種移動無線通信通道的測試平臺。 |
英文摘要 | In wireless mobile communication environments, the presence of reflecting objects and scatters creates a constantly changing environments that dissipates the signal energy in amplitude, phase and time (multipath interference fading). At the same time, the relative motion between the mobile and the base station results in random frequency modulation of the multipath wave (Doppler shift effect). Consequently, transmission signal is severely distorted and the performance is degraded. We will implement a software simulator to simulate a Rayleigh fading channel based on Jakes model. Furthermore, we can easily extend it to simulate urban, suburban and indoor wireless mobile communication environments defined by GSM, IS95 and WCDMA. Whenever we need to verify the performance of the wireless mobile communication system or to design a transmitter of receiver, the software simulator provides a platform that we can efficiently take advantage of. |
本系統中英文摘要資訊取自各篇刊載內容。