請用此 Handle URI 來引用此文件:
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/57089
標題: | 多細胞群播廣播系統中多群組群播結合式集波束設計 Joint Beamforming for Multicell Multigroup Multicast with Per-cell Power Constraints |
作者: | Hai-Han Wang 汪海瀚 |
指導教授: | 蘇炫榮(Hsuan-Jung Su) |
關鍵字: | 群播,結合式集波束,最佳化設計,半正定規劃,最小平衡值, Multicast,joint beamforming,convex optimization,semidefinite relaxation,minimum balanced level, |
出版年 : | 2014 |
學位: | 碩士 |
摘要: | This thesis considers a joint beamforming design problem in the multicell multicast system with multiple groups that provide different multicast services using the same time-frequency resource. By jointly design beamforming vectors among
cooperative cells, the worst received signal-to-interference-plus-noise-ratio (SINR) of all serving users in the multiple multicast groups can be improved. Inspired by previous works in the literature, we apply semidefinite relaxation (SDR) technique to perform joint beamforming design among the cooperating base stations. Per-cell power constraints are considered which makes solving the problem challenging. We propose two algorithms to accommodate the per-cell power constraints while performing joint beamforming. Simulation results show that the proposed algorithms provide better performance compared to the existing multicast methods in the multicell environment. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/57089 |
全文授權: | 有償授權 |
顯示於系所單位: | 電信工程學研究所 |
文件中的檔案:
檔案 | 大小 | 格式 | |
---|---|---|---|
ntu-103-1.pdf 目前未授權公開取用 | 1.22 MB | Adobe PDF |
系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。