Projects per year
Abstract
Conjugate beamforming (CB) and zero-forcing (ZF) are well-known linear precoders, which have optimized hardware implementations. In this work, a linear precoder is proposed based on switching between CB and ZF for line-of-sight propagation environments. The proposed idea is to predict and use the precoder, which results in the highest sum-rate for a given channel. To this end, three regimes are introduced for the ratio of power per user at the base station (BS) over noise power at a user receiver. For low values of this ratio, CB and for high values, ZF result in the highest sum-rate. For moderate values, a precoding strategy is proposed to switch to the best precoder. The switching mechanism is based on an upper bound for the ZF sum-rate, which we introduced in this work. The proposed precoding strategy achieves a sum-rate higher than both CB and ZF. Simulation results for a massive MIMO system including a l00-antenna BS, show up to 8% improvement on the sum-rate compared to CB and ZF. In addition, the proposed precoder reduces computational complexity up to 16.5% compared to the ZF precoding.
Original language | English |
---|---|
Title of host publication | 2018 25th International Conference on Telecommunications, ICT 2018 |
Publisher | Institute of Electrical and Electronics Engineers |
Pages | 121-126 |
Number of pages | 6 |
ISBN (Print) | 9781538623213 |
DOIs | |
Publication status | Published - 13 Sept 2018 |
Event | 25th International Conference on Telecommunications, ICT 2018 - Saint Malo, France Duration: 26 Jun 2018 → 28 Jun 2018 |
Conference
Conference | 25th International Conference on Telecommunications, ICT 2018 |
---|---|
Country/Territory | France |
City | Saint Malo |
Period | 26/06/18 → 28/06/18 |
Fingerprint
Dive into the research topics of 'A reduced-complexity linear precoding strategy for massive MIMO base stations'. Together they form a unique fingerprint.Projects
- 1 Finished
-
SILIKA: Silicon-based Ka-band massive MIMO antenna systems for new telecommunication services SPS
Willems, F. M. J., Farsaei, A., Alvarado, A., Sanders, R., Barreiro, A. & de Jonge, M.
1/09/16 → 31/08/20
Project: Research direct
File