Convolutional code for use in a communication system
AssigneeDecaWave, Ltd.
InventorsMichael McLaughlin, Billy Verso
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Abstract
In a communication system, a transmitter receives an input bit, and in response thereto, generates at least an n-bit codeword, each bit of which is generated by a respective one of n generators of which m are exactly the same, m being greater than n/2. A receiver comprises: m detectors, each adapted to receive the bit generated by a respective one of the m generators, and provide a respective one of m partial detection signals if a strength of the received bit exceeds a predetermined minimum threshold; and a majority logic element adapted to receive each of the m partial detection signals, and provide an output bit indicative of the input bit only if more than m/2 of the received m partial detection signals exceeds the minimum threshold.
Claims15
A communication system comprising:
- a transmitter adapted to receive an input bit, and in response thereto, generate at least an n-bit codeword, where n is a first predetermined number, each bit of which is generated by a respective one of n generators of which m are exactly the same, where m is a second predetermined number greater than n/2;
- and
- a receiver comprising:
- m detectors, each adapted to:
- receive said bit generated by a respective one of said m generators;
- and
- provide a respective one of m partial detection signals if a strength of said received bit exceeds a predetermined minimum threshold;
- and
- a majority logic element adapted to:
- receive each of said m partial detection signals;
- and;
- provide an output bit indicative of said input bit only if more than m/2 of said received m partial detection signals exceeds said minimum threshold.
In a communication system wherein a transmitter receives an input bit and, in response thereto, generates at least an n-bit codeword, where n is a first predetermined number, each bit of which is generated by a respective one of n generators of which m are exactly the same, where m is a second predetermined number greater than n/2, a receiver comprising:
- m detectors, each adapted to:
- receive said bit generated by a respective one of said m generators;
- and
- provide a respective one of m partial detection signals if a strength of said received bit exceeds a predetermined minimum threshold;
- and
- a majority logic element adapted to:
- receive each of said m partial detection signals;
- and;
- provide an output bit indicative of said input bit only if more than m/2 of said received m partial detection signals exceeds said minimum threshold.
In a communication system comprising a transmitter and a receiver, a method comprising the steps of:
- in the transmitter:
- receiving an input bit, and in response thereto, generating at least an n-bit codeword, where n is a first predetermined number, each bit of which is generated by a respective one of n generators of which m are exactly the same, where m is a second predetermined number greater than n/2;
- and
- in the receiver:
- in each of m detectors:
- receiving said bit generated by a respective one of said m generators;
- and
- providing a respective one of m partial detection signals if a strength of said received bit exceeds a predetermined minimum threshold;
- and
- in a majority logic element:
- receiving each of said m partial detection signals;
- and
- providing an output bit indicative of said input bit only if more than m/2 of said received m partial detection signals exceeds said minimum threshold.
Dependencies are inferred from the claim text.