標題: Interpolation-Based QR Decomposition and Channel Estimation Processor for MIMO-OFDM System
作者: Chiu, Po-Lin
Huang, Lin-Zheng
Chai, Li-Wei
Huang, Yuan-Hao
電信工程研究所
Institute of Communications Engineering
關鍵字: Interpolation;multiple-input multiple-output (MIMO);QR decomposition (QRD)
公開日期: 1-五月-2011
摘要: This paper presents a modified interpolation-based QR decomposition algorithm for the grouped-ordering multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems. Based on the original research that integrates the calculations of the frequency-domain channel estimation and the QR decomposition for the MIMO-OFDM system, this study proposes a modified algorithm that possesses a scalable property to save the power consumption for interpolation-based QR decomposition in the variable-rank MIMO scheme. Furthermore, we also develop the general equations and a timing scheduling method for the hardware design of the proposed QR decomposition processor for the higher-dimension MIMO system. Based on the proposed algorithm, a configurable interpolation-based QR decomposition and channel estimation processor was designed and implemented using a 90-nm one-poly nine-metal CMOS technology. The processor supports 2 2, 2 4 and 4 4 QR-based MIMO detection for the 3GPP-LTE MIMO-OFDM system and achieves the throughput of 35.16 MQRD/s at its maximum clock rate 140.65 MHz.
URI: http://dx.doi.org/10.1109/TCSI.2010.2092090
http://hdl.handle.net/11536/8943
ISSN: 1549-8328
DOI: 10.1109/TCSI.2010.2092090
期刊: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
Volume: 58
Issue: 5
起始頁: 1129
結束頁: 1141
顯示於類別:期刊論文


文件中的檔案:

  1. 000289900800026.pdf

若為 zip 檔案,請下載檔案解壓縮後,用瀏覽器開啟資料夾中的 index.html 瀏覽全文。