Method and system for detecting messages using enhanced distributed signaling

Abstract

The present invention discloses a method and system for detecting messages using enhanced distributed signaling in a wireless communication network that offers transmission diversity to improve the throughput of participating wireless stations.

Description

BRIEF DESCRIPTION OF THE DRAWING

The drawings accompanying and forming part of this specification are included to depict certain aspects of the invention. A clearer conception of the invention and of operation of systems provided with the invention, will become more readily apparent by referring to the exemplary, and therefore non-limiting, embodiments illustrated in the drawings, wherein like reference numbers (if they occur in more than one view) designate the same elements. The invention may be better understood by reference to one or more of these drawings in combination with the description presented herein. It should be noted that the features illustrated in the drawings are not necessarily drawn to scale.

FIG. 1 shows a flow diagram of the operation of a distributed signaling method.

FIG. 2 illustrates a wireless communication network using a distributed signaling method.

FIG. 3 illustrates one embodiment of a wireless communication network with two wireless stations participating in the enhanced distributed signaling method.

FIG. 4 illustrates one embodiment of a wireless communication network with the enhanced distributed signaling method with relaying function.

Claims

1. A method for detecting messages using distributed signaling in a wireless communication network when messages are transmitted from at least one source wireless station to at least one destination wireless station through one or more participating wireless stations, the method comprising: receiving a copy of a first predetermined message from the source wireless station;receiving a copy of a second predetermined message from the participating wireless station;receiving a first supplementary message from at least one participating wireless station based on a received copy of the first predetermined message by the participating wireless station and the second predetermined message generated by the participating wireless station;receiving a second supplementary message from the source wireless station based on the first predetermined message generated by the source wireless station and a received copy of the second predetermined message; anddetecting the first predetermined message based on the copy of the first predetermined message, the copy of the second predetermined message, and the copies of the first and second supplementary messages.

2. The method of claim 1, wherein the received copy of the predetermined message includes radio noise.

3. The method of claim 1, further comprising generating, by the participating wireless stations, a predetermined codeword for encoding the second supplementary message with a larger length than that for the first predetermined message.

4. The method of claim 3, wherein the generating further includes employing a concatenated coding method for generating the codeword.

5. The method of claim 3, wherein the generating further includes employing a Low Density Parity-Check coding method for generating the codeword.

6. The method of claim 1, further comprising transmitting, by the participating wireless stations, the second supplementary message based on the received copy of the first predetermined message asynchronously.

7. The method of claim 1, wherein the detecting further includes employing a joint-decoding algorithm to retrieve the predetermined first message.

8. The method of claim 1, wherein the supplementary message is sent from the second wireless station only when the first predetermined message is retrieved error-free at the second wireless station, determined through possible usage of one or more cyclic redundancy check codes, or only when the signal-to-noise ratio between the first and second wireless stations exceeds a predetermined threshold.

9. A method for detecting messaging using distributed signaling in a wireless communication network, the method comprising: receiving a copy of a first predetermined message from a first source wireless station;receiving a copy of a second predetermined message from a second source wireless station;receiving a supplementary message from at least one participating wireless station based on the copies of the first and second predetermined messages received by the participating wireless station; anddetecting the first and second predetermined message based on the received copy of the first predetermined message, the received copy of the second predetermined message, and a received copy of the supplementary message(s).

10. The method of claim 9, wherein the received copy of the first predetermined message includes radio noise.

11. The method of claim 9, further comprising generating, by the participating wireless station, a predetermined codeword for encoding the supplementary message with a larger length than that for the first predetermined message.

12. The method of claim 11, wherein the generating further includes employing a concatenated coding method for generating the codeword.

13. The method of claim 11, wherein the generating further includes employing a Low Density Parity-Check coding method for generating the codeword.

14. The method of claim 9, further comprising transmitting, by the participating wireless station, the supplementary message based on the received copy of the first predetermined message asynchronously.

15. The method of claim 9, wherein the detecting further includes employing a joint-decoding algorithm to retrieve the first predetermined message.

16. The method of claim 9, wherein the supplementary message is sent from the second wireless station only when the first predetermined message is retrieved error-free at the second wireless station, determined through possible usage of one or more cyclic redundancy check codes, or only when the signal-to-noise ratio between the first and second wireless stations exceeds a predetermined threshold.

17. A wireless communication network using distributed signaling for detecting messages, the network comprising: a first wireless station for transmitting a first predetermined message;a second wireless station for transmitting a second predetermined message and for generating and transmitting at least one first supplementary message based on the first predetermined message received from the first wireless station and the second predetermined message; anda destination wireless station for detecting the first predetermined message based on a received copy of the first predetermined message transmitted by the first wireless station, a received copy of the second predetermined message transmitted by the second wireless station, and a received copy of the first supplementary message.

18. The network of claim 17, wherein the destination wireless station detects the first predetermined message further based on at least one second supplementary message generated by the first wireless station based on the first predetermined message and a received copy of the second predetermined message.

19. The network of claim 17, wherein the received copy of the predetermined message includes radio noise.

20. The network of claim 17, wherein the participating wireless stations generate codewords for encoding the second supplementary message having a length longer than that for encoding the first predetermined message.

21. The network of claim 19, wherein the participating wireless stations employ a concatenated coding method for generating the codeword.

22. The network of claim 19, wherein the participating wireless stations employ a Low Density Parity-Check coding method for generating the codeword.

23. The network of claim 17, wherein the destination wireless station further includes employing a joint-decoding algorithm to detect the predetermined original message.

24. The method of claim 17, wherein the supplementary message is sent from the second wireless station only when the first predetermined message is retrieved error-free at the second wireless station, determined through possible usage of one or more cyclic redundancy check codes, or only when the signal-to-noise ratio between the first and second wireless stations exceeds a predetermined threshold