Skip to main content
eScholarship
Open Access Publications from the University of California

Degrees of Freedom of the Cellular System with Relays and Partial CSIT

Abstract

We consider a two-tier cellular system where there is a macrocell base station equipped with multiple antennas transmitting to multiple microcells, each equipped with a microcell base station (relay) equipped with one antenna. Each microcell has one user. We explore the degrees of freedom (DoF) of several configurations of this network with the assumption that no channel state information (CSI) of the users is available at the macrocell base station and different assumptions on the CSI between other transmitter-receiver pairs. With very limited CSI and the relays, the achievable DoF can be greatly increased compared to the case when there is no relays.

Main Content
For improved accessibility of PDF content, download the file to your device.
Current View