無線通訊訊號傳輸過程中無可避免會遭受到屏蔽效應，使得訊號在功率上呈現高斯分佈。1991年Gudmundson 的研究實驗指出，行動通訊系統之訊號變化可用高斯-馬可夫模型表達其空間關聯特性。此模型已被廣泛地使用在有關訊號強度的分析上。
然而，在行動通訊之系統分析及網路分析上，同頻干擾是相當重要的課題，相關的研究也很多。本論文首先研究行動通訊系統中，針對使用者的移動性，模擬同頻干擾之變化程度；然後提出一個高斯-馬可夫模型，表達其所接收到的同頻干擾之空間關聯特性，以期用以預測下一刻使用者將會接收到的同頻干擾之變化量。
訊雜比，無線通訊系統中一個評量傳輸通訊品質的重要指標。在本論文我們將提出方法及模型分別在有無多重存取干擾的情況下，用以預測使用者下一刻將接收到的訊雜比之變化程度。
所提出來的-行動通訊系統同頻干擾及訊雜比之空間關聯特性模型及方法。藉由和電腦模擬實際的比較上，可發現在預測下一刻使用者接收到的同頻干擾及訊雜比之變化程度有相當程度的準確性，並且具有省時的優點。此論文可應用於2G, 3G, B3G等行動通訊系統上的系統分析及網路分析。
所提出來的-行動通訊系統同頻干擾及訊雜比之空間關聯特性模型及方法。藉由和電腦模擬實際的比較上，可發現在預測下一刻使用者接收到的同頻干擾及訊雜比之變化程度有相當程度的準確性，並且具有省時的優點。

Shadowing effect, caused by the obstructions in the propagation path, is inevitable in mobile radio environments and will cause large variation in the received signal strength. The spatial correlation of shadow fading is exponentially decayed with the increasing of propagation distance and is modeled by Gudmundson as a stochastic process.
For a decade, the Gudmundson’s model for the spatial correlation of the shadowing is widely used for handoff and signals strength computation. However, none of papers has involved in the spatial correlation of total co-channel interference (CCI) according to the mobiles’ movement although the CCI have been discussed extensively. In this research we will propose a Gaussian-Markov model for the spatial correlation of total CCI and characterize the variations of total CCI with the simulation.
When the co-channel interference is present, the carrier-to-interference ratio is a figure of merit commonly used for quantifying the transmission quality in wireless communications. We wish to capture the CIR behavior as far as possible. A similar model and a methodology will be developed for the variation prediction of the carrier-to-interference ratio in mobile communications with/ without multiple access interference in CDMA systems.
The results show that the proposed models have high degree of accuracy to describe the spatial correlation properties and to predict the random behaviors of total CCI and the CIR in mobile communication with shadowing effect. Moreover, they can be applied to the applications such as handoff schemes design, link performance prediction, quality of service (QoS), downlink capacity analysis, and performance simulations, etc. in frequency-reused communications, such as 2G, 3G, and B3G.

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Part of this research have been accepted by IEEE GLOBECOM 2004