Degrees of Freedom of the $K$ User $M \times N$ MIMO Interference Channel
作者： Tiangao Gou , Syed A. Jafar
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摘要: We provide inner bound and outer for the total number of degrees freedom K user multiple-input multiple-output (MIMO) Gaussian interference channel with M antennas at each transmitter N receiver if coefficients are time-varying drawn from a continuous distribution. The bounds tight when ratio [(max(M,N))/(min(M,N))]=R is equal to an integer. For this case, we show that min(M,N)K ≤ R min(M,N)[(R)/(R+1)]K > R. Achievability based on alignment. also examples where using alignment combined zero forcing can achieve more than merely some MIMO channels constant coefficients.
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arxiv-vanity.com参考文章(23)
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