Space-time trellis code for orthogonal frequency division...

Details Space-time trellis code for orthogonal frequency division... Space-time trellis code for orthogonal frequency division...

2007-02-13

2007-02-13

Corrielus, Jean B. (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S279000, C375S299000, C375S347000, C341S180000, C370S203000

Reexamination Certificate

active

10011631

ABSTRACT:
A communication system for transmitting encoded signals over a communication channel is disclosed. The system includes a transmitter, which has a source that is configured to output a plurality of input signals. The transmitter also includes an encoder that is configured to generate a plurality of output signals in response to the plurality of the input signals to output a code word according to the plurality of output signals, wherein the code word has a predetermined algebraic construction for space-frequency coding based upon the communication channel being characterized as a frequency selective block fading channel. Further, the transmitter includes a modulator that is configured to modulate the code word for transmission over the communication channel, and a plurality of transmit antennas that configured to transmit the modulated code word over the communication channel. The system encompasses a receiver that includes a plurality of receive antennas, in which the receiver is configured to receive the transmitted code word via the plurality of receive antennas. The receiver employs an OFDM-front end to transform the Intersymbol Interference (ISI) channel characteristics of the communication channel to selective block fading characteristics.

REFERENCES:
patent: 6144711 (2000-11-01), Raleigh et al.
patent: 6614861 (2003-09-01), Terry et al.

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