Modulation scheme for orthogonal frequency division multiplexing systems or the like
First Claim
Patent Images
1. A method, comprising:
- receiving channel state information of a communication channel;
resealing subcarrier power of a signal based on the channel state information; and
adjusting a modulation rate based on the channel state information.
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Abstract
Briefly, in accordance with one embodiment of the invention, bit and power loading may be utilized to select a modulation rate and subcarrier power scaling based on channel state information. As a result, a higher data rate may be utilized for a given signal-to-noise ratio while maintaining a constant bit error rate.
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Citations
20 Claims
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1. A method, comprising:
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receiving channel state information of a communication channel;
resealing subcarrier power of a signal based on the channel state information; and
adjusting a modulation rate based on the channel state information. - View Dependent Claims (2, 3, 4, 5, 12, 13, 14, 15)
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6. An article comprising:
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a storage medium having stored thereon instructions that, when executed by a computing platform, result in signal modulation adapted to a channel state by;
receiving channel state information of a communication channel;
resealing subcarrier power of a signal based on the channel state information; and
adjusting a modulation rate based on the channel state information. - View Dependent Claims (7, 8, 9, 10)
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11. An apparatus, comprising:
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a modulation encoder to modulate a signal at a modulation rate based on channel state information of a communication channel; and
a weighting block to rescale subcarrier power of the signal based on the channel state information.
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16. An apparatus, comprising:
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an orthogonal frequency division multiplexing transceiver; and
an omnidirectional antenna to couple to said orthogonal frequency division multiplexing transceiver;
said orthogonal frequency division multiplexing transceiver including a modulation encoder to modulate a signal at a modulation rate based on channel state information of a communication channel, and a weighting block to rescale subcarrier power of the signal based on the channel state information. - View Dependent Claims (17, 18, 19, 20)
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Specification