Patent ID: 8953717
Filing Date: 2015-02-10
Classification: H04L

Abstract:
1. A receiving method in cooperative communications, comprising: demodulating a first signal received from a first source end to obtain a first log-likelihood ratio; demodulating a second signal received from a second source end to obtain a second log-likelihood ratio; demodulating a third signal received from a relay node to obtain a third log-likelihood ratio, wherein the third signal is a signal obtained by the relay node through network coding the first signal and the second signal; obtaining a first prior probability that the first signal transmitted by the first source end is 0 and a second prior probability that the first signal transmitted by the first source end is 1 according to the first log-likelihood ratio, the second log-likelihood ratio and the third log-likelihood ratio; calculating a posterior log-likelihood ratio of the first signal according to the first prior probability that the first signal transmitted by the first source end is 0 and the second prior probability that the first signal transmitted by the first source end is 1; and decoding the first signal by using the posterior log-likelihood ratio of the first signal.