【資料名稱】：A SEMI-BLIND TIME DOMAIN EQUALIZATION OF SCFDMA SIGNAL

【資料作者】：Sosthene Yameogo

【資料日期】：2009

【資料語(yǔ)言】：英文

【資料格式】：PDF

【資料目錄和簡(jiǎn)介】：

This paper proposes a new semi blind equalizer structure
for Single Carrier FDMA (SC-FDMA){l]{2]. SC-FDMA is
currently adopted for mobile radio uplink communications in 3G
Long Term Evolution (3G LTE). In this system, a Zero-Forcing(ZF)
equalization is performed thanks to the addition of a Cyclic Prefix
(CP), as in OFDM system, and pilots regularly inserted for channel
estimation which lead to the useful throughput degradation. Toreduce
this degradation we propose in this paper a new structure of semi
blind equalizer in time domain based on [3]. A ZF criterion and a
simple Minimum Mean Square Error (MMSE) are combined to reduce
the number of pilots inserted and to outperform the ZF optimum
mean square error. This equalizer is shared in two parts: Thefiltering
itself which is a linear time domain filtering performed before any
demodulation device in the receiver side, and the criterion algorithm
performed in the time domain after user selection and demodulation
which is sometimes a ZF criterion and sometimes MMSE criterion.
The results are very convincing both in terms ofMean Square Error
and in throughput gain compared to the performances of ZeroForcing
technique used in literature.

[ 本帖最后由 smartcat 于 2011-5-29 18:27 編輯 ]