Method and system for utilizing space-time and...

Details Method and system for utilizing space-time and... Method and system for utilizing space-time and...

2008-01-01

2008-01-01

Ha, Dac V. (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S267000, C375S346000, C455S063300, C455S296000

Reexamination Certificate

active

07315570

ABSTRACT:
A communication system for transmitting encoded signals over a communication channel is disclosed. The system includes a transmitter, which has a source that outputs a message signal. The transmitter also includes an encoder that generates a code word in response to the message signal. The code word has a construction that defines a plurality of paths associated with an intersymbol interference (ISI) environment of the communication channel, wherein the code word achieves a diversity based upon the number of transmit antennas and the number of ISI paths. Further, the transmitter includes a modulator that modulates the code word for transmission over the communication channel, and multiple antennas that transmit the modulated code word over the communication channel. The system encompasses a receiver that receives the transmitted code word via a number of receive antennas.

REFERENCES:
patent: 6377632 (2002-04-01), Paulraj et al.
patent: 6804307 (2004-10-01), Popovic
patent: 6888899 (2005-05-01), Raleigh et al.
patent: 2003/0026348 (2003-02-01), Lian et al.

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