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Systems and methods for a multicarrier modulation system with a variable margin

DC CAFC
  • US 8,937,988 B2
  • Filed: 11/13/2013
  • Issued: 01/20/2015
  • Est. Priority Date: 04/18/2000
  • Status: Expired due to Fees
First Claim
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1. A multicarrier communications method, comprising:

  • modulating for transmission, in a transceiver, a first plurality of bits onto a first carrier using a first Signal to Noise Ratio (SNR) margin;

    modulating for transmission, in the transceiver, a second plurality of bits onto a second carrier using a second Signal to Noise Ratio (SNR) margin; and

    modulating for transmission, in said transceiver, a third plurality of bits onto said first carrier using a third SNR margin,wherein the first SNR margin specifies a first value for an allowable increase in noise without an increase in the bit error rate (BER) associated with the first carrier,wherein the second SNR margin specifies a second value for an allowable increase in noise without an increase in the bit error rate (BER) associated with the second carrier,wherein the third SNR margin specifies a third value for an allowable increase in noise without an increase in the bit error rate (BER) associated with said first carrier,wherein the first SNR margin is different than the second SNR margin,wherein the first SNR margin is different than the third SNR margin, andwherein the first plurality of bits, the second plurality of bits and the third plurality of bits are each different from one another.

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