Receiver apparatus

Details Receiver apparatus Receiver apparatus

2011-06-14

2011-06-14

Fan, Chieh M (Department: 2611)

Pulse or digital communications

Receivers

Interference or noise reduction

C375S316000, C375S340000, C375S347000, C375S349000

Reexamination Certificate

active

07961824

ABSTRACT:
A receiving apparatus includes a CE unit that estimates a propagation channel, a PG unit that reproduces a pilot signal included in the reception signal based on the estimated channel information, an EMG unit that generates, assuming that a pilot signal included in the reception signal is a null carrier, a frequency equalization matrix based on the channel information, a PR unit that subtracts the reproduced pilot signal from a result of the DFT, and an EMM unit that multiplies the frequency equalization matrix with a signal after the subtraction.

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Satoshi Suyama, et al., “A Scattered Pilot OFDM Equalizer for Multipath Environments With the Delay Difference Greater Than Guard Interval”, The Institute of Electronics, Information and Communication Engineers, vol. 102, No. 204, pp. 79-84, 2002. (with English abstract).
Yoichi Maeda, et al., “A Study on Optimum Coefficient of Multi Dimensional Lattice Filter for OFDM”, The Institute of Electronics, Information and Communication Engineers, vol. 100, No. 664, pp. 35-40, 2001.
Steffen Trautmann, et al., “Perfect Equalization for DMT Systems Without Guard Interval”, IEEE Journal on Selected Areas in Communications, vol. 20, No. 5, pp. 987-996, 2002.
Akihiro Akazaki, et al., “Frequency Domain Equalization of Multipath Signals With Insufficient Guard Interval”, The Institute of Electronics, Information and Communication Engineers, pp. 470, 2005. (with English translation).

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