Receiver system and method of operation thereof
A method of operation of a communication system includes: utilizing an estimation module estimating a log-likelihood ratio for a transmission; and utilizing a slicing module, coupled to the estimation module, slicing a constellation by: reading the log-likelihood ratio from the estimation module, defining a threshold within the constellation, and adjusting the threshold based on the log-likelihood ratio for determining a symbol.
1. A method of operation of a communication system comprising:
utilizing an estimation module estimating a log-likelihood ratio for a transmission; and
utilizing a slicing module, coupled to the estimation module, slicing a constellation by:
reading the log-likelihood ratio from the estimation module,
defining a threshold within the constellation, and
adjusting the threshold based on the log-likelihood ratio for determining a symbol.
2. The method as claimed in claim 1 wherein utilizing the slicing module includes slicing a first bit in a real dimension and a second bit in an imaginary dimension.
3. The method as claimed in claim 1 wherein utilizing the slicing module includes parallel slicing a first bit and a second bit from the constellation.
4. The method as claimed in claim 1 wherein:
utilizing the slicing module includes slicing the transmission in a real dimension separately from an imaginary dimension; and
examining only a pulse-amplitude modulation of the transmission.
5. The method as claimed in claim 1 wherein utilizing the slicing module includes slicing with the slicing module within a detector block.
6. A method of operation of a communication system comprising:
utilizing an estimation module, having an a priori read block, and estimating a log-likelihood ratio for a transmission; and
utilizing a slicing module, coupled to the a priori read block, slicing a Gray coded constellation by:
reading the log-likelihood ratio from the estimation module,
defining a threshold within the Gray coded constellation, and
adjusting the threshold based on the log-likelihood ratio for determining a symbol by determining a bit in the dimension by magnitude only.
7. The method as claimed in claim 6 wherein utilizing the estimation module includes providing the estimation module having a conversion block cancelling interference and converting a transmission to an additive white Gaussian noise system by maximal ratio combining.
8. The method as claimed in claim 6 wherein utilizing the slicing module includes distinguishing between neighboring pulse-amplitude modulation signals with a single bit.
9. The method as claimed in claim 6 wherein utilizing the estimation module includes estimating the log-likelihood ratio based on information from two or more transmit antennae.
10. The method as claimed in claim 6 wherein utilizing the slicing module includes detecting the symbol with a hard detection.
11. A communication system comprising:
an estimation module for estimating a log-likelihood ratio for bits of a transmission; and
a slicing module, coupled to the estimation module, and the slicing module for slicing a constellation by reading the log-likelihood ratio from the estimation module, defining a threshold within the constellation, and adjusting the threshold based on the log-likelihood ratio for determining a symbol.
12. The system as claimed in claim 11 wherein the slicing module is for slicing a first bit in a real dimension and a second bit in an imaginary dimension.
13. The system as claimed in claim 11 wherein the slicing module slices, in parallel, a first bit and a second bit from the constellation.
14. The system as claimed in claim 11 wherein the slicing module slices the transmission in a real dimension separately from an imaginary dimension by examining only a pulse-amplitude modulation of the transmission.
15. The system as claimed in claim 11 wherein the slicing module slices within a detector block.
16. The system as claimed in claim 11 wherein the slicing module determines a bit in the dimension by magnitude only.
17. The system as claimed in claim 16 wherein the estimation module includes a conversion block cancelling interference and converting a transmission to an additive white Gaussian noise system by maximal ratio combining.
18. The system as claimed in claim 16 wherein the slicing module distinguishes between neighboring pulse-amplitude modulation signals with a single bit.
19. The system as claimed in claim 16 wherein the estimation module estimates the log-likelihood ratio based on information from two or more transmit antennae.
20. The system as claimed in claim 16 wherein the slicing module detects the symbol with a hard detection.