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專利授權區

專利授權區
專利名稱(英)	RELAY PRECODER SELECTION METHOD FOR TWO-WAY AMPLIFY-AND-FORWARD MIMO RELAY SYSTEMS AND OMMUNICATION DEVICES USING THE SELECTION METHOD OR THE SELECTED RELAY PRECODER
專利家族	中華民國：I605693 美國：10,218,418
專利權人	國立清華大學 100%
發明人	陳俊宇,彭怡萱,王晉良
技術領域	通信傳輸

專利摘要(英)
This invention provides a relay precoder selection method for two-way amplify-and-forward multiple-input multiple-output (MIMO) relay systems and communication devices using the selection method or the selected relay precoder. According to the relationship between a relay precoder and the singular values of the effective MIMO channels, a set of candidate relay precoders are constructed based on the singular vector subspaces of cascaded MIMO channels, and one of them is selected for meeting a specific design criterion, such as the minimum sum of MSEs, the maximum sum of capacities, and the minimum or maximum sum of condition numbers, where the condition number is defined as the ratio of the largest to the smallest singular value of a MIMO channel. As compared with the iterative design methods with the optimum performance, this invention achieves close performance while requiring much lower computational complexity.

專利摘要(英)

This invention provides a relay precoder selection method for two-way amplify-and-forward multiple-input multiple-output (MIMO) relay systems and communication devices using the selection method or the selected relay precoder. According to the relationship between a relay precoder and the singular values of the effective MIMO channels, a set of candidate relay precoders are constructed based on the singular vector subspaces of cascaded MIMO channels, and one of them is selected for meeting a specific design criterion, such as the minimum sum of MSEs, the maximum sum of capacities, and the minimum or maximum sum of condition numbers, where the condition number is defined as the ratio of the largest to the smallest singular value of a MIMO channel. As compared with the iterative design methods with the optimum performance, this invention achieves close performance while requiring much lower computational complexity.

聯絡資訊
承辦人姓名	李曉琪
承辦人電話	03-5715131 #31061
承辦人Email	hsiaochi@mx.nthu.edu.tw