| 摘要 |
A system is configured to receive a block of symbols, associated with a phase-modulated signal that includes data symbols that correspond to a payload associated with the signal, and control symbols; process the control symbols to identify an amount of phase noise associated with the control symbols; reset a phase, associated with each of the data symbols, based on the amount of phase noise and a reference phase; interleave the respective data samples, of each of the data symbols with other data samples, where the interleaved respective data samples cause errors, associated with the respective data samples, to be spread out among the other data samples and reduces an error rate relative to a prior data rate that existed before the interleaving; and perform forward error correction on the interleaved respective data samples. |
| 主权项 |
1. A method comprising:
receiving, by a network device, a block of symbols associated with a phase-modulated signal, the block of symbols including:
data symbols that correspond to a payload associated with the signal, each of the data symbols including a plurality of bits, andcontrol symbols; obtaining, by the network device, the control symbols from the block of symbols; processing, by the network device, the control symbols to identify an amount of phase noise associated with the control symbols; resetting, by the network device, a respective phase, associated with each of the data symbols, based on the amount of phase noise and at least one reference phase; interleaving, by the network device and as a result of resetting the phase, respective data samples, of each of the data symbols, with other data samples, where interleaving the respective data samples with the other samples:
causes consecutive errors, associated with the respective data samples, to be spread out among the other data samples, andreduces an error rate relative to a prior error rate that existed before the interleaving; and performing, by the network device, forward error correction on the interleaved respective data samples, where the control symbols include at least one of: a first control symbol, associated with a first polarization, that includes:
a first sample associated with an in-phase component of the first control symbol, anda second sample associated with a quadrature component of the first control symbol, or a second control symbol, associated with a second polarization, that includes:
a third sample associated with an in-phase component of the second control symbol, anda fourth sample associated with a quadrature component of the second control symbol,where processing the control symbols further includes: multiplying the first control symbol by a first reference signal, associated with a first phase, to identify first phase noise associated with the first control symbol; and multiplying the second control symbol by a second reference signal, associated with a second phase, to identify second phase noise associated with the second control symbol, where the first phase noise corresponds to a complex signal that includes a real part and an imaginary part, where the real part is based on a difference between a first product defined by a real portion of the first control symbol multiplied by a real portion of the first reference signal and a second product defined by an imaginary portion of the first control symbol multiplied by an imaginary portion of the first reference signal, and where the imaginary part is based on a sum of a third product defined by the real portion of the first control symbol multiplied by the imaginary portion of the first reference signal and a fourth product defined by the imaginary portion of the first control symbol multiplied by the real portion of the first reference signal. |
