Cell-Edge-Aware Precoding for Downlink Massive MIMO Cellular Networks

12 Oct 2017 Yang Hao (Howard) ISTD Massive MIMO Cellular Networks

PhD Student
Yang Hao (Howard), Information Systems Technology and Design

Supervisor
Tony Quek, Associate Professor and Associate Head of Pillar, Information Systems Technology and Design


Multiple-input multiple-output (MIMO) cellular networks provide for high-capacity wireless communication (e.g. Wi-Fi, 3G, 4G LTE, etc.). Massive MIMO networks are a key enabling technology to achieve 5G requirements. However, signals from adjacent base station antennas can create interference, which reduces capacity significantly, especially at the edge of a base station antenna’s service area (or cell).
 
This research project proposes a cell-edge-aware signal processing scheme for suppressing inter-cell interference. Compared to a conventional cell-edge-unaware scheme, the proposed cell-edge-aware scheme provides better downlink performance for massive MIMO cellular networks, in terms of:

1. higher aggregate data rate per cell;
2. better coverage probability; and
3. higher 95%-likely (or edge user) rate.

Read more here.