Pulse or digital communications – Transceivers
Patent
1996-09-30
1999-11-09
Vo, Don N.
Pulse or digital communications
Transceivers
375295, 375377, 370232, 370468, H04B 138
Patent
active
059828137
ABSTRACT:
In a communication system in which a transmitter transmits data over a communication channel of a fixed bandwidth to a receiver, the method according to which the transmit data rate is continuously adjusted to a rate which is substantially equal to a short-term average data rate. The channel capacity and/or other characteristics of the system, is continuously adjusted, through changes in transmit power, symbol rate and modulation format, to a level at which the ratio of received signal energy per bit to noise spectral density (E.sub.b /N.sub.o) at the receiver is close to but above its minimum acceptable level, thereby matching the channel capacity and/or other characteristics of the system to the traffic. The system has further attributes which adjust the transmit data rate responsive to conditions involving at least one of data traffic levels, power reserve emergency, thermal load and message priority.
REFERENCES:
patent: 5115429 (1992-05-01), Hluchyj et al.
patent: 5452009 (1995-09-01), Citta
patent: 5463656 (1995-10-01), Polivka et al.
patent: 5471497 (1995-11-01), Zehavi
patent: 5475711 (1995-12-01), Betts et al.
Dutta Santanu
Mahany Richard J.
AMSC Subsidiary Corporation
Donner Irah H.
Hamilton LLP Pepper
Vo Don N.
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