Mitsubishi Electric Corporation

Akinori Nakajima

Satoshi Sasaki

Hiroyasu Sano

Masatsugu Higashinaka

Shinji Masuda

Takehiko Nishide

A wireless transmission device includes a repetition coding unit that prepares a basic waveform having a length less than a frequency conversion length that is used in a wireless reception device, generates a repetition waveform having a length greater than or equal to the frequency conversion length by repeating the basic waveform a plurality of times, and generates a data frame including the repetition waveform and a known signal.

Wireless transmission device, wireless reception device, remote communication monitoring system and wireless communication method

A wireless communication apparatus includes components below. An equalization unit performs equalization processing on a part of a received signal corresponding to a first range and a part of the received signal corresponding to a second range. The first range includes detection target data. The second range is outside the first range. A replica generation unit decomposes the second range, on which equalization processing has been performed, into a plurality of signal components, and reproduces the part of the received signal corresponding to the second range for each of the signal components to generate a replica of an interference component. An interference cancellation unit cancels the interference component from the part of the received signal corresponding to the first range by using the replica. A data extraction unit extracts the detection target data from the received signal.

Communication apparatus and received signal processing method

A receiving apparatus includes: a control signal channel estimator to estimate a channel for a control signal using a pilot signal extracted from a received signal, and generate a first channel estimate value; a control signal FED unit to perform frequency domain equalization processing on the control signal by using the first channel estimate value; a control signal demodulator to demodulate the equalized control signal; a control signal encoder to encode a demodulated equalized control signal; an FFT unit to generate, from the encoded equalized control signal, a control signal replica; a data channel estimator to estimate a channel for the data signal by using the control signal replica and the first channel estimate value; and a data FDE unit to perform frequency domain equalization processing on the data signal by using the second channel estimate value.

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Tokyo, Japan

Akinori Nakajima