Method and system for adaptive interleaving
View Patent ↗A method a system for automatically controlling an adaptive interleaver involves monitoring performance parameters of a transmission system and controlling the adaptive interleaver in response to the performance parameters. The SNR and the data rate of the transmission system are preferably determined. The data rate is analyzed and the adaptive interleaver is adjusted in response to the data rate and the SNR. Alternatively, the BER and the data rate of the transmission system are determined. The data rate is analyzed and the adaptive interleaver is adjusted in response to the data rate and the BER. Alternatively, any one of the SNR, BER or data rate can alone be monitored and used to the adaptive interleaver. The system provides a effective system for adjusting an adaptive interleaver in response to performance parameters of a transmission system.
1. A controller for an adaptive interleaver comprising:
a processor that is operative to determine a signal to noise ratio of a transmission channel, determine a data rate of the transmission channel, analyze the signal to noise ratio, analyze the data rate, and generate a control signal.
2. The invention of claim 1 , wherein the processor is further operative determine a signal power by measuring a maximum amplitude deviation and a maximum phase deviation of data received via the transmission channel.
3. The invention of claim 1 , wherein the processor is further operative determine a noise power by measuring an amplitude distance and a phase distance between adjacent points in a modulation constellation.
4. The invention of claim 1 , wherein the processor is further operative to determine whether the signal to noise ratio exceeds a threshold.
5. The invention of claim 1 , wherein the processor is further operative to determine whether the data rate exceeds a threshold.
6. The invention of claim 1 , further comprising an adaptive interleaver coupled with the processor, the adaptive interleaver being operative to receive the control signal.
7. The invention of claim 6 , wherein the adaptive interleaver is operative to alter an interleaved signal in response to the control signal.
8. The invention of claim 6 , wherein the adaptive interleaver is operative to alter the interleave depth of an interleaved signal in response to the control signal.