蜂巢網絡已經充斥在我們的生活中並以無縫的方式提供行動用戶各種語音和數據服務。在個人通信服務網絡中，行動裝置的通訊可能在發起通訊或切換通訊過程中 (我們稱為換手) 的過程中因為基地台資源不足和連線的的可靠性不佳被迫中斷。本篇論文利用隨機幾何的技術建置網路模型，並研究分析在個人通信服務網絡中通訊無法完成的機率。我們提出了阻擋機率和覆蓋機率兩個影響通訊完成的因素的數學分析，阻擋機率代表通訊因為資源不足而被強制終止的機率，而覆蓋機率表示在網絡系統中的連線的可靠性。我們根據從 OpenCellID 中的基地台地理位置數據進行模擬實驗以評估比較提出的隨機幾何模型與現實環境的差異。

Cellular networks have been integrated with our lives to provide various voice and data services to mobile users in a seamless approach. In PCS (Personal Communications Services) networks, calls of portables devices may not be completed due to resource insufficiency and link reliability during the call initiation or the handover process. This paper present a study of call incomplete probability for PCS networks, using a stochastic geometry perspective. We present analytic expressions for both blocking probability and coverage probability. Blocking probability is probability that a call is forced to terminate due to resource insufficiency and coverage probability expresses the link reliability in the network system. We also conduct simulation experiments according to data from OpenCellID to comprehensively evaluate the proposed stochastic geometry model in realistic environment.

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