適用於多載波網路之有限維度干擾排列的可行條件

Feasibility Conditions of Interference Alignment with Limited Dimensions for Multi-Carrier Cellular Networks

邱孝聰(Shiau-Tsung Chiou)

指導教授 ： 蘇炫榮

國立臺灣大學/電機資訊學院/電信工程學研究所/碩士(2013年)

https://doi.org/10.6342/NTU.2013.01288

摘要

近幾年裡，干擾排列的相關研究被大量的研究出來，因為干擾排列可以大幅提升無線通訊網路的傳輸效能。由於干擾排列在有限信號空間維度的條件之下不一定都是可行的，因此干擾排列對於常見的網路架構的可行條件越來越受到重視。目前，關於可行條件的研究大部分只有探討多輸入多輸出的干擾網路的網路架構。對於多輸入多輸出的細胞網路的可行條件還大多是未知的狀態。在這篇論文中，我們延續了前人提出來的研究方法，將其運用到細胞網路之中。因此，我們更加確定了多輸入多輸出的細胞網路的可行條件，除此之外，我們也更進一步的利用單一輸入單一輸出的多載波細胞網路的對角恆定的特性，把多輸入多輸出的細胞網路的結果推廣到單一輸入單一輸出的多載波細胞網路的架構上，最後推出單一輸入單一輸出的多載波細胞網路的干擾排列的可行條件。

關鍵字

可行條件 ； 干擾排列 ； 多輸入多輸出 ； 多載波 ； 細胞網路

並列摘要

Interference alignment (IA) has been enormously studied in recent years, since it has shown the capacity of wireless network can be considerably improved. The feasibility conditions of IA with limited dimensions for most network topologies have caught the attention since IA with limited dimensions might not always feasible. Recently, a new mathematical framework which shows necessary and sufficient feasibility conditions of IA for MIMO interference networks with general antenna configurations is developed. However, the feasibility conditions of IA for MIMO cellular networks still remain unclear. In this thesis, we slightly modify the framework mentioned above, so that it can be applied to single-stream cellular networks. Consequently, the necessary and sufficient feasibility conditions of IA for single-stream MIMO cellular networks can be more confirmed. We further acquire the necessary and sufficient feasibility conditions of IA for single-stream multi-carrier cellular networks by diagonal-invariant property with respect to the transmit and receive beamforming.

並列關鍵字

Feasibility condition ； interference alignment ； MIMO ； multicarrier ； cellular network

參考文獻

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