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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/57089
Title: | 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 |
Authors: | Hai-Han Wang 汪海瀚 |
Advisor: | 蘇炫榮(Hsuan-Jung Su) |
Keyword: | 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, |
Publication Year : | 2014 |
Degree: | 碩士 |
Abstract: | 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 |
Fulltext Rights: | 有償授權 |
Appears in Collections: | 電信工程學研究所 |
Files in This Item:
File | Size | Format | |
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ntu-103-1.pdf Restricted Access | 1.22 MB | Adobe PDF |
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