Method and Apparatus for Using Multicarrier Interferometry to Enhance optical Fiber Communications
First Claim
Patent Images
1. A multicarrier receiver, comprising:
- a sampler configured for sampling a plurality of received multicarrier signals to produce a plurality of multicarrier signal values, a combiner configured for combining the plurality of multicarrier signal values to produce at least one information signal and at least one interference signal, and a multi-user detector configured to separate the at least one information signal from the at least one interference signal.
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Abstract
Multicarrier spreading codes map data symbols to a sequence of orthogonal pulse shapes generated from a superposition of orthogonal subcarriers. The orthogonal subcarriers may include OFDM subcarriers, frequency-hopped subcarriers, or chirped subcarriers. Multicarrier spread spectrum may employ a combination of orthogonal frequency division multiple access, time division multiple access, and code division multiple access. Receivers configured to use multi-user detection may employ a combination of time-domain processing and frequency-domain processing.
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Citations
15 Claims
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1. A multicarrier receiver, comprising:
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a sampler configured for sampling a plurality of received multicarrier signals to produce a plurality of multicarrier signal values, a combiner configured for combining the plurality of multicarrier signal values to produce at least one information signal and at least one interference signal, and a multi-user detector configured to separate the at least one information signal from the at least one interference signal. - View Dependent Claims (2, 3, 4, 5)
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6. A method of receiving a multicarrier signal, comprising:
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providing for sampling a plurality of received multicarrier signals to produce a plurality of multicarrier signal values, providing for combining the plurality of multicarrier signal values to produce at least one information signal and at least one interference signal, and providing for performing multi-user detection to separate the at least one information signal from the at least one interference signal. - View Dependent Claims (7, 8, 9, 10)
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11. A system, comprising:
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a sampling means configured for sampling a plurality of received multicarrier signals to produce a plurality of multicarrier signal values, a combining means configured for combining the plurality of multicarrier signal values to produce at least one information signal and at least one interference signal, and a multi-user detection means configured to separate the at least one information signal from the at least one interference signal. - View Dependent Claims (12, 13, 14, 15)
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Specification