低複雜度的預編碼方法LOW COMPLEXITY PRE-CODING METHOD

專利類型

發明

專利國別 (專利申請國家)

中華民國

專利申請案號

102103355

專利證號

I 469558

專利獲證名稱

低複雜度的預編碼方法LOW COMPLEXITY PRE-CODING METHOD

專利所屬機關 (申請機關)

國立中興大學

獲證日期

2015/01/11

技術說明

一種適用於多輸入多數出通訊系統之低複雜度的預編碼方法，採用一種矩陣雙對角線化的前處理，並提供了一種使用分治法的觀念來完成幾何平均值分解。前處理將估測的通道矩陣分解為雙對角矩陣，而分治法則包括分割與合併兩個階段。在分割階段是先將所有矩陣斜對角元素先分成兩個相鄰元素一個子群組，進而將每個子群組內的元素轉換成其對應的幾何平均值。在合併階段則是將兩兩相鄰的子群組併成一包含四個元素的較大子群組，並將所有元素轉換成其對應的幾何平均值，直到所有矩陣斜對角元素都被併成單一群組並擁有同樣的幾何平均值。 A low complexity precoding scheme based on geometric mean decomposition (GMD) method for MIMO communication systems is provided. The proposed precoding scheme employs a bi-diagonalization pre-processing and adopts a divide-and-conquer approach. In the pre-processing step, the estimated channel is converted to a bi-diagonal matrix format. The divide-and-conquer approach includes the divide phase and the conquer phase. In the divide phase, the diagonal elements are first partitioned (divided) into groups of size two. The two elements in each group are then converted to the corresponding geometric mean. In the conquer phase, two groups of size two are first combined to form a group of size 4 and all elements are again converted to the corresponding geometric mean. Smaller sized groups are combined continuously to form larger sized groups. This procedure proceeds until all diagonal elements are combined into one group and assume the same geometric mean.

備註

本部(文號1090000062)同意該校108年12月31日興產字第1084300814號函申請終止維護專利(中興)

連絡單位 (專責單位/部門名稱)

技術授權中心

連絡電話

04-22851811

網址