Random matrix analysis of large wireless networks

H. Bölcskei, ETH Zürich

Wednesday, April 23
at 16.15
in HG E1.2

We analyze fading interference relay networks where M single-antenna source-destination terminal pairs communicate concurrently and in the same frequency band through a set of K single-antenna relays using half duplex two-hop relaying. The relays do not have channel state information, perform amplify-and-forward (AF) relaying, and the destination terminals can cooperate and perform joint decoding. Our main results are as follows: 1) We compute the per source-destination terminal pair capacity for M and K both going to infinity with the ratio K/M=beta fixed, using tools from large random matrix theory. 2) We show that for beta going to infinity, the AF relay network is turned into a point-to point multiple-input multiple-output link. We will also provide a brief overview of the key tools from large random matrix theory used in this talk.