| 摘要: | 預期次世代網路將以高效率和高度自動化網路資源管理的方式提供新型電信服務和使用者操作行為。在有限的頻譜資源下，WiMAX和LTE二系統在媒介存取層也都支援multi-carrier之運作以及異質性網路單元。這些不同的支援在頻譜分享、頻道訊號干擾及資源管理等種種層面帶來了前所未有的挑戰，這也是此研究計畫的研究重心。利用LTE-A的多載波聚合技術和頻譜共享技術，讓訊號避開使用不理 想的頻道並減少訊號衰減，並聚合閒置波道，可大幅改善行動用戶所接收到的訊號品質，提升網路系統將能達到提升傳輸速率、增加系統容量、延伸服務範圍等。本子計畫將探討次世代網路技術在媒介存取層之上將面臨的挑戰和待解決的問題，並利用跨層的網路技術，提升其系統效能。研究項目包括：資源管理與頻譜分享機制之學習的模型和規則, 資源管理與頻譜分享整合方法, 頻譜分享的相關協定和禮儀, 次居家環境多波道共享控制、環境感知頻譜換手管理、流量卸載、自組織網路等。透過多波道聚合技術建立一套具有動態頻譜介接、動態頻譜共享和動態多波道頻譜操作功能的資源管理的系統，將可大幅提昇頻譜的使用率並整合異質網路的傳輸品質。也將探討具多載波自動聚合之次世代多點傳輸網路技術及由人對人通訊延伸到機器對機器的通訊。The next-generation mobile communication networks are designed to accommodate high data rate and high mobility. The next-generation mobile communication networks support the services for varieties of application and huge number of users. The mobile data usage and traffic are expected to increase exponentially in next five years. The scarce spectrum and fragment bandwidth lead the demand for radio resources to often exceed the available bandwidth. Therefore, dynamic spectrum sharing and flexible resource management are very important. Because the possibility for WiMAX/LTE/LTE-Advanced co-existence, these heterogeneous networks also support different tire cells, such as macro, micro and femto cells. Therefore, to establish and maintain good resource management and spectrum sharing are crucial issues. In this project, we will investigate mechanisms for handling flexible spectrum and resource requirements in the next-generation mobile communication networks. The main purpose of this subproject is to design the resource management and spectrum sharing mechanisms. The resource allocation and spectrum aggregation procedures are also considered. The cognitive-radio mechanisms can be used in the next-generation mobile communication networks. Consequently, spectrum aware spectrum sharing and flexible spectrum use are built to construct the cognitive resource management model. The research topics also include: intra-cell and inter-cell spectrum sharing, environmental awareness spectrum handover, etiquette protocol and cross layer design for resource allocation and spectrum aggregation. We also adopt the carrier aggregation concepts to build a resource management system with Dynamic Spectrum Access (DSA), Dynamic Spectrum Sharing (DSS) and Dynamic Spectrum Multi-channel Operation (DSM). Accordingly, the spectrum utilization, fairness and throughput can be maximized. Finally, we will consider the Layer-encoded Multimedia Server Design, Opportunistic Multicast Scheduling and Resource Allocation, Machine to Machine communication. 研究期間：10008 ~ 10107 |
