本計畫為二年期個別研究計畫，目的在於【應用於IEEE 802.16m 家用基地台網路以提昇網路傳輸效能之自我組織網路技術的設計與製作】。本計畫預計於IEEE802.16m 家用基地台網路中討論如何藉由頻道配置、電量管理、合作分集與上下行框架轉換的調整等自我組織網路(SON)機制的設計與使用以避免頻寬浪費並提昇頻道利用率並提昇整體網路傳輸效能。本計畫將針對下列幾個子目標進行深入的探討。目標一：分析家用基地台之間的運作模式對於整體網路傳輸效能影響。目標二：分析家用基地台之間電量大小對網路傳輸效能影響。目標三：分析下行與上行框架轉換時機對於對網路傳輸效能影響。目標四：分析家用基地台之間合作分集技術對於傳輸效能之影響。目標五：應用於家用基地台網路的電量管理與配置機制之設計與製作。目標六：家用基地台之間的動態頻道配置機制之設計與製作。目標七：應用於家用基地台網路的上下行框架轉換機制之設計與製作。目標八：家用基地台之間合作分集技術之設計與製作。針對於上述目標，本計畫將考慮訊號品質、AMSs 的傳輸需求、Femto BS 的運作模式與使用之合作分集技術對於資源管理與分配的影響，並於Femto BS 網路中討論如何在符合IEEE802.16m 標準的前提下來調整上下行框架轉換時機與分配電量集頻寬等資源以提供較佳的傳輸品質並服務更多的使用者。計畫進行的過程中，會根據不同的目標開發出相對應之演算法或通訊協定，包涵頻寬管理機制、各個行動節點訊號品質的收集機制、各個行動節點資料傳輸需求的交換機制、Femto BS 電量調節機制與 Femto BSs 之間的協調機制。接著透過模擬程式驗證所開發之演算法或協定並持續改良，同時評估演算法或協定之效能，使所開發之演算法或協定符合本計畫預期目標。
The project is a two-year personal project. The theme of the project is “The development of Bandwidth Efficient Self-Organizing Network (SON) Techniques for IEEE 802.16m Femtocell Networks.”The major objective of the project intends to improve the bandwidth utilization and the network throughput through using heuristic self-organizing network techniques for IEEE 802.16m Femto BS networks. In the project, the impacts of the Femto BS modes, the boundaries of uplink and downlink subframes, energy used on subchannels, and the cooperative diversity techniques on the bandwidth utilization and the network throughput of the IEEE 802.16m Femtocell networks will be studied, respectively. Based on the study and the analysis, many s SON schemes are designed to decrease the co-channel interference and improve the bandwidth utilization. Due to the decrease the interference, better modulation and coding schemes can be used and the network throughput can be improved. The bullets listed below are the issues concerned in the project. Investigate the impact of Femto BS modes on the network performance. Investigate the impacts of the power levels of subchannels used by Femto ABS on subchannel utilization and network throughput of IEEE 802.16m Femtocell networks, Investigate the impacts of the boundaries of downlink and uplink subframes of all Femto ABSs serviced by the same Femto Gateway on the network throughput of IEEE 802.16m Femtocell networks, Investigate the impact of cooperative diversity techniques on the network performance and, Design a power control and allocation SON mechanism with high subchannel utilization and low interference for IEEE 802.16m Femtocell networks. Design a dynamic channel segment allocation mechanism for IEEE 802.16m Femtocell networks. Design a subframe boundary determination mechanism with low bandwidth wastage for IEEE 802.16m Femtocell networks. Design a cooperative diversity transmission mechanism based on FFR for IEEE 802.16m Femtocell networks. Comprehensively, the proposed project is expected to efficiently improve the channel utilization and increase the network throughput with low control overhead. Cooperative diversity techniques and subchannel quality are considered to design the SON techniques for IEEE 802.16m Femto BS. Therefore, the project can enhance the subchannel utilization and the network throughput.
