現今，有許多應用需要非常高的資料傳輸速率，然而當代科技尚無法支援如此高傳輸速率的需求，特別是針對室內無限通訊系統。為了要在室內通道達到高資料傳輸速率，六十秭技術已被發現是最具有前瞻性的技術之一。六十秭技術有許多優點，包括超高資料傳輸速率、在全球都有大量並且無需執照的頻寬、較少其他系統干擾等。為了要分析六十秭通訊系統，目前已提出一些新的通道模型如802.15.3c通道模型以符合六十秭通道的特點，主要是根據量測到的電磁訊號去定義出來的，此室內通道模型在空間與時間上都具有群集的特色。除此之外，系統方面如正交分頻多工系統 (Orthogonal Frequency Division Multiplexing)，因其卓越的特性，如較簡單的通道等化以及高頻譜效率，已被建議用於六十秭室內通道中。
然而，在目前已知的研究中，多是依據模擬或量測的資料，關於正交分頻多工系統於六十秭室內通道的實用分析還嫌欠缺。在本論文中，利用延伸密度函數 (Extended Density Function)，我們推導了在六十秭通道上隨機到來路徑的平均效應，推導分析也包括一個特別存在於六十秭室內通道中，在空間維度上的隨機效應。然後根據時間、到來路徑，以及空間維度上平均效應的影響，我們計算出在實際系統假設下正交分頻多工系統的確切訊號干擾雜訊比 (Signal-to-Interference-Plus-Noise Ratio, SINR)。最後，基於所得到的分析結果，我們也做了一些針對空間上的討論，以及根據分析結果觀察得到的實用法則，可套用在不同的六十秭室內通道環境中。

Many applications nowadays require high data rates, while the contemporary technology
cannot support such high rate demand, especially for indoor wireless communications. To
achieve a high data rate for indoor channels, 60 GHz technology has emerged as one of the
most promising candidates. There are many advantages in 60 GHz technology, such as very
high achievable data rates, huge unlicensed bandwidth available worldwide, and little intersystem
interference. In addition, systems such as orthogonal frequency division multiplexing
(OFDM) systems have been proposed for the 60 GHz indoor channels due to the remarkable
properties, such as simpler channel equalization and high spectral efficiency.
Yet practical analysis for OFDM systems over 60 GHz indoor channels is still rare in the literature. In this thesis, by the aid of the extended density function, the average effect of the random arrivals is derived and a special spatial domain randomness existing in the 60 GHz indoor channels is also included. An exact signal-to-interference-plus-noise ratio (SINR) analysis of OFDM systems over 60 GHz indoor channels is then provided. Finally, some discussions, mainly focused on the spatial domain, based on the SINR analysis are given.

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