在多輸入多輸出系統下使用QR分解之 疊代干擾消除接收機

Iterative Parallel Interference Cancellation Receiver with QR Decomposition in MIMO System

游英信(Ying-Shin Yu)

指導教授 ： 劉大勇 ； 劉宏煥

中原大學/工學院/電子工程研究所/碩士(2008年)

https://doi.org/10.6840/cycu200800006

摘要

此篇論文中，我們提出一種新的疊代平行雜訊消除接收機架構，首先使用QR分解(QR Decomposition)先行粗略估算傳送訊號，其後利用疊代平行干擾消除(Iterative PIC)方法進行多次估計，比較原有標準疊代平行干擾消除(Iterative PIC-STD)與決策統計疊代平行干擾消除(Iterative PIC-DSC)架構，模擬結果顯示新架構在相同次數疊代下，保有原有圖框錯誤率，此外也使得運算量大幅減少。

關鍵字

決策統計 ； 標準疊代平行干擾消除 ； 疊代平行干擾消除 ； QR分解

並列摘要

In this thesis, we propose a new iterative parallel interference cancellation receiver architecture. QR-decomposition algorithm is used to compute the transmitted signals roughly in advance, and followed by an iterative parallel interference cancellation (Iterative PIC) to calculate them several times. The simulation shows that the new receiver architecture not only keeps the original frame error rate(FER) in several iteration but also reduces large number of operations comparing with standard iterative parallel interference cancellation (Iterative PIC-STD) and iterative parallel interference cancellation with decision statistics combining (Iterative PIC-DSC).

並列關鍵字

PIC-DSC ； PIC-STD ； QR Decomposition ； Iterative PIC

參考文獻

[1] V. Tarko, N. Seshadri, and A. R. Calderbank, “Space-time codes for high data rate wireless communication : Performance criterion and construct-

ion,’’IEEE Trans. Inform. theory, vol.44, pp.744-765, Mar. 1988.

[3] Shu Lin, Daniel J Costello, “Error Control Coding,’’2nd Ed., 2004.

[6] Simon Haykin, “Communication Systems,” 4th Ed., Wiley, 2001.

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