Computer Science ›› 2016, Vol. 43 ›› Issue (11): 180-183.doi: 10.11896/j.issn.1002-137X.2016.11.035

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Research on Degrees of Freedom of Interference Channel (IC) of Two Parallel Users in Cognition between Transmitting End Nets

QIN Wen-ming, WANG Xiao-feng and LIU Feng   

  • Online:2018-12-01 Published:2018-12-01

Abstract: This paper,applying a strategic research method combining interference alignment,interference neutralization and perception network together,studies the freedom degrees of IC when it is respectively paralleled with the main network and the sub-network,considering the cognition between the main network and the sub-network.It summarizes all the 11 cases in the related studies,makes an ergodic analysis of the interference management strategy of every case,and finally finds that,the IC of the inner bound freedoms in Case 11 have increased compared with 4 users.The final conclusion is that the inner bound freedom-degree maximum is 3 under the condition of IC inter-network cognition of two parallelusers.

Key words: Interference channel,Cognitive network,Degrees of freedom,Interference alignment,Interference neutralization

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