教師資料查詢 | 類別: 會議論文 | 教師: 李光啟 KELVIN KUANG-CHI LEE (瀏覽個人網頁)

標題:An Eigen-based Matrix Inverse Approximation Scheme with Stair Matrix Splitting for Massive MIMO Systems
學年
學期
發表日期2018/11/27
作品名稱An Eigen-based Matrix Inverse Approximation Scheme with Stair Matrix Splitting for Massive MIMO Systems
作品名稱(其他語言)
著者Phil Chia-Yang Tsai; Kelvin Kuang-Chi Lee; Chiao-En Chen
作品所屬單位
出版者
會議名稱2018 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)
會議地點沖繩縣石垣島日本
摘要Approximative matrix inversion (MIA) has been extensively researched with the aim of addressing the complexity issues encountered by Zero-forcing (ZF) precoder design in massive multiple-input multiple-output (MIMO) systems. The eigen-based MIA scheme with diagonal matrix splitting is presented recently where additional coefficients can be designed and optimized to improve MIA accuracy and bit-error-rate (BER) compared to the well-known Neumann series expansion (NS) or Newton iteration (NI) framework for Rayleigh flat fading channel, regardless the presence of transmit antenna correlation or not. In this paper, stair matrix splitting is proposed for the eigen-based MIA method for uncorrelated Rayleigh flat fading channel. Simulation result shows that, with additional information in the inverse of stair matrix, both the ZF precoder approximation precision and BER can be enhanced compared to the diagonal matrix splitting scenarios without sacrificing complexity.
關鍵字Massive MIMO;NS expansion;eigen-based MIA;stair matrix splitting
語言英文
收錄於
會議性質國際
校內研討會地點
研討會時間20181127~20181130
通訊作者
國別日本
公開徵稿
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