An Enhanced Channel Estimation with Partial Interference Cancelation for MU-MIMO System

In this letter, we propose an enhanced channel estimation method for multi-user multiple-input multiple output (MU-MIMO) transmission in long term evolution (LTE)-Advanced system. The proposed method partially estimates and eliminates the interference using simple matrix operations. After that, we a...

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Veröffentlicht in:	IEEE communications letters 2012-08, Vol.16 (8), p.1232-1235
Hauptverfasser:	Hwang, Won Jun, Jang, Jun Hee, Choi, Hyung Jin
Format:	Artikel
Sprache:	eng
Schlagworte:	Antennas Applied sciences Channel estimation Detection, estimation, filtering, equalization, prediction Estimation Exact sciences and technology Information, signal and communications theory Interference Iterative methods minimum mean squared error (MMSE) Mobile communication multi-user multiple-input multiple-output (MU-MIMO) Performance gain Signal and communications theory Signal, noise successive interference cancelation (SIC) Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Transmission and modulation (techniques and equipments)
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Beschreibung
Zusammenfassung:	In this letter, we propose an enhanced channel estimation method for multi-user multiple-input multiple output (MU-MIMO) transmission in long term evolution (LTE)-Advanced system. The proposed method partially estimates and eliminates the interference using simple matrix operations. After that, we apply an iterative channel estimation scheme. Due to the improvement of initial channel estimation performance, the proposed channel estimation method has significantly large performance gain compared to conventional method.
ISSN:	1089-7798 1558-2558
DOI:	10.1109/LCOMM.2012.060812.120705