Page 47 - 陽明交大電機學院院刊

IEEE Open Journal of the Communications Society (2023)
Joint Beamforming and Aerial IRS
Positioning Design for IRS-Assisted
MISO System With Multiple Access Points

電子研究所 馮智豪 副教授（通訊作者、共同作者）

multiple users scenario. Moreover, the multiple
Intelligent reflecting surface (IRS) is a
access problem is also considered with the
promising concept for 6G wireless
beamformer design which has not been addressed
communications that allows tuning of the wireless
in literature, except in the context of joint
environments to increase spectral and energy
transmission, which is not considered herein. To
efficiency. Many optimization techniques have
further maximize ground based and support non-
been proposed in literature to deal with the joint
terrestrial communications, the joint aerial IRS
passive and active beamforming design problem,
(AIRS) positioning and beamformer design
but without any optimality guarantees for the
problem is also considered.
multiple access points (APs), multiple IRSs, and

npj Quantum Information (2023)
Exploiting degeneracy in belief propagation
decoding of quantum codes

電信工程研究所 賴青沂 副教授（共同作者）

目前推測的量子計算模型需要使用約百萬個
可靠度傳遞是傳統通訊中最實用的解碼
量子位元，且需要不斷地、快速地完成錯誤
演算法，但是它並無法處理有量子退化現象
更正，因此我們的可靠度傳遞演算法接近線
的量子錯誤更正碼，對目前最受重視的平面
性的複雜度。現在最成功的完美匹配演算法
碼更是完全無法作用，這已經是接近 20 年的
需要平方至立方的複雜度，相較之下，我們
難題。在此論文中我們對這難題給出答案。
的演算法更具優勢。

46