Wireless communication system with rate selection mechanism and method of operation thereof

1. A wireless communication system comprising:

a control module configured to:

calculate a first throughput level based on modeling a communication process using automatic repeat request based on ignoring a channel in successive transmissions corresponding to the automatic repeat request;

calculate a second throughput level based on modeling the channel across transmissions corresponding to the automatic repeat request;

calculate a maximum throughput based on the first throughput level and the second throughput level to represent a spectral efficiency;

a storage module, coupled to the control module, configured to store the maximum throughput in a throughput table; and

a communication module, coupled to the control module, configured to transmit a channel quality indicator as a feedback, selected from the throughput table, based on a largest value of the maximum throughput.

2. The system as claimed in claim 1 wherein the control module is configured to calculate the maximum throughput based on applying a scaling factor.

3. The system as claimed in claim 1 wherein the storage module includes a storage interface configured to transfer the feedback to a communication interface.

4. The system as claimed in claim 1 wherein the control module is configured to calculate the first throughput level corresponding to a Markov decision process (MDP) throughput and the second throughput level corresponding to a quasi-static (QS) throughput for each possible entry of the throughput table.

5. The system as claimed in claim 1 wherein the communication module includes a communication interface coupled to the control module, the communication interface configured to select a largest value of the maximum throughput transferred to the communication interface.

6. The system as claimed in claim 1 wherein:

the communication module includes a communication interface configured to receive an arriving communication; and

the control module is configured to calculate a channel estimate from the arriving communication.

7. The system as claimed in claim 1 wherein the control module is configured to apply a scaling factor to the first throughput level corresponding to a Markov decision process (MDP) throughput and to the second throughput level corresponding to a quasi-static (QS) throughput.

8. The system as claimed in claim 1 wherein the storage module includes a storage interface configured to transfer the feedback to a communication interface by a controller interface.

9. The system as claimed in claim 1 wherein:

the communication module includes a communication interface configured to receive an arriving signal; and

the storage module includes a storage interface configured to access the throughput table.

10. The system as claimed in claim 1 wherein the control module is configured to apply a scaling factor for each entry in the throughput table.

11. A method of operation of a wireless communication system comprising:

calculating a first throughput level based on modeling a communication process using automatic repeat request based on ignoring a channel in successive transmissions corresponding to the automatic repeat request;

calculating a second throughput level based on a different process for modeling the communication process using the automatic repeat request;

calculating a maximum throughput, representing a spectral efficiency, based on the first throughput level and the second throughput level, the maximum throughput level for each possible entry of a channel quality indicator;

storing, in a throughput table, the maximum throughput; and

selecting a channel quality indicator for transmitting a feedback, including accessing the throughput table for selecting the feedback having a largest value of the maximum throughput.

12. The method as claimed in claim 11 wherein calculating the maximum throughput based on applying a scaling factor.

13. The method as claimed in claim 11 wherein selecting the channel quality indicator includes copying the feedback to a communication interface.

14. The method as claimed in claim 11 wherein:

calculating the first throughput level includes calculating the first throughput level corresponding to a Markov decision process (MDP) throughput for each of the possible entry of the throughput table; and

calculating the second throughput level includes calculating the second throughput level corresponding to a quasi-static (QS) throughput for each of the possible entry of the throughput table.

15. The method as claimed in claim 11 wherein selecting the channel quality indicator includes transferring a selected value of the channel quality indicator to a communication interface.

16. The method as claimed in claim 11 further comprising:

configuring a communication interface for receiving an arriving communication; and

calculating a channel estimate from the arriving communication.

17. The method as claimed in claim 11 wherein calculating the maximum throughput includes applying a scaling factor to the first throughput level corresponding to a Markov decision process (MDP) throughput and to the second throughput level corresponding to a quasi-static (QS) throughput.

18. The method as claimed in claim 11 wherein selecting the channel quality indicator includes copying the feedback to a communication interface by a controller interface.

19. The method as claimed in claim 11 further comprising:

receiving an arriving signal for calculating a scaling factor; and

wherein:

accessing the throughput table includes configuring a storage interface to access the throughput table.

20. The method as claimed in claim 11 wherein calculating the maximum throughput includes applying a scaling factor for each entry in the throughput table.