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Degrees of Freedom of Two-Hop Wireless Networks: "Everyone Gets the Entire Cake" by Shomorony, Ilan; Avestimehr, A. Salman is a scholarly article available to read on EtoBox.

What is Degrees of Freedom of Two-Hop Wireless Networks: "Everyone Gets the Entire Cake" about?

We show that fully connected two-hop wireless networks with K sources, K relays and K destinations have K degrees of freedom both in the case of time-varying channel coefficients and in the case of constant channel coefficients (in which case the result holds for almost all values of constant channel coefficients). Our main contribution is a new achievability scheme which we call Aligned Network Diagonalization. This scheme allows the data streams transmitted by the sources to undergo a diagonal linear transformation from the sources to the destinations, thus being received free of interference by their intended destination. In addition, we extend our scheme to multi-hop networks with fully connected hops, and multi-hop networks with MIMO nodes, for which the degrees of freedom are also fully characterized.

Author

Shomorony, Ilan; Avestimehr, A. Salman

Published

2012

Language

EN