這些年來隨著無線多媒體應用的增加，無線網路的技術不斷更新，頻譜資源利用情況則原地踏步，使得無線頻譜越來越缺乏，包括美國電機電子工程師學會(IEEE)和美國聯邦通訊委員會(FCC)，都已朝向感知無線電網路技術發展及制定規格，希望藉由感知無線電網路技術能對頻譜資源做進一步的整合與管理，來達到頻譜資源的分享。 本論文藉由IEEE 802.22提出的CBP協定，攜帶動態的資源租賃的訊息，以解決跨基地台之間無線電資源管理，基於模糊邏輯控制有效的作資源的估測與分配無線電資源，並考量到三種訊務，分別為聲音、影像和資料，動態調整系統的可用資源，以提升無線電資源的利用率，達到頻譜資源分享的目的。採用模糊邏輯控制的原因為，其擴充性高，且運作過程不複雜，模糊邏輯規則可以依據經驗法則作參數的微調，隨時可以動態的改善情況，使系統達到有效的資源管理。 The increasing of wireless multimedia application and the wireless network technology has significant progress in recent years. The inefficient spectrum resource utilization makes spectrum resources exhaust gradually. In order to satisfy growing demands for spectrum resources, IEEE are currently developing wireless network standards related to the cognitive radio network technology for the integration and management of radio resources to improve spectrum resource utilization to achieve the objective of spectrum sharing. This thesis follow IEEE 802.22 proposed coexistence beacon protocol (CBP), the mechanism carry the information of dynamic resource renting and offering to solve the problem of spectrum sharing for inter-BS (Base Station) coexistence mechanism. The proposed fuzzy logic based algorithm considering three kinds of traffic, voice, video and data respectively, can meet the dynamic management of radio resources to improve spectrum resource utilization. Due to high flexibility and low complexity, fuzzy rules based on empirical laws can dynamically adjust parameters to control the radio resources. The fuzzy logic control (FLC) spectrum sharing for Inter-BS coexistence mechanism is chosen to make effective utilization of resources in IEEE 802.22 WRAN.
