Comments on Degrees of freedom region for $K$-user interference channel with $M$ antennas

Details Comments on Degrees of freedom region for $K$-user interference channel with $M$ antennas Comments on Degrees of freedom region for $K$-user interference channel with $M$ antennas

2010-11-16

arxiv.org/abs/1011.3812v1

Computer Science

Information Theory

2 pages

Scientific paper

For a $K$-user interference channel with $M$ antenna at each transmitter and
each receiver, the maximum total DoF of this channel has been previously
determined to be $\max \sum_{k=1}^K d_k = MK/2$. However, the DoF region
remains to be unknown. In this short note, through a simple time-sharing
argument, we obtain the degrees of freedom (DoF) region of this channel.

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