Diversity-Multiplexing Tradeoff of Double Scattering MIMO Channels
Sheng Long Yang, Jean‐Claude Belfiore · IEEE Transactions on Information Theory · 2011
It is well known that the presence of double scattering degrades the performance of a MIMO channel, in terms of both the multiplexing gain and the diversity gain. In this paper, a closed-form expression of the diversity-multiplexing tradeoff (DMT) of double scattering MIMO channels is obtained. It is shown that, for a channel withnTtransmit antennas,nRreceive antennas. andnSscatterers, the DMT only depends on the ordered version of the triple (nT,nS,nR) , for arbitrarynT,nSandnR. The condition under which the double scattering channel has the same DMT as the single scattering channel is also established.