A high-speed mobile OFDM receiver LSI with an iterative noise-reduction filter to enhance channel estimation

Abstract

This paper presents an OFDM receiver LSI wifh an iterafive noise-reducfion filter. Experimental results show that the LSI drasticaZly improves the mobile reception peflorrnunce, especially in high-speed envirolzment. The die is fabricated with 0. I8um CMOS process, including ALX, DAC and PLL.

The Implementation of a 2/4/8 Antennas Configurable Diversity OFDM Receiver for Mobile HDTV Application

“…Those SPs are located every 12 subcarriers in one OFDM symbol and the position of the SP shifts by 3 subcarriers every OFDM symbol. In previous work [7], 2-tap linear interpolation is performed by the two SPs in the linear interpolation zone. In this paper, the new SPLINE algorithm 4-tap interpolation is applied.…”

A 2/4/8 antennas configurable diversity OFDM receiver for mobile HDTV Application

“…Those SPs are located every 12 sub-carriers in one OFDM symbol and the position of SP shifts by 3 sub-carriers every OFDM symbol. In the previous work [2], 2-taps linear interpolation is performed by the two SPs in linear interpolation zone. Here, the new SPLINE algorithm 4-taps interpolation is applied.…”