Abstract
Achieving high data rate is always a goal that could be met by developing new technologies and investigating potential ones. Recently, the concept of cell-free massive MIMO systems (CF-mMIMO) has been considered to enhance the performance of systems that operate merely with Radio Frequency (RF) or visible light communication (VLC) technologies. In this paper, a hybrid VLC/RF cell-free massive MIMO system is proposed where an RF cell-free network is used to support a VLC cell-free network. The idea is to utilize the benefits of each network and balance the load aiming at maximizing the system's sum-rate. The system is evaluated using zero-forcing (ZF) precoding scheme. A user association algorithm is proposed to assign users to either VLC or RF networks. Results show that the proposed algorithm outperforms a random network association of users. Results also show great potential for the proposed system compared to standalone cell-free networks.
| Original language | English |
|---|---|
| Title of host publication | ICC 2022 - IEEE International Conference on Communications |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 1871-1876 |
| Number of pages | 6 |
| ISBN (Electronic) | 9781538683477 |
| DOIs | |
| State | Published - 2022 |
Publication series
| Name | IEEE International Conference on Communications |
|---|---|
| Volume | 2022-May |
| ISSN (Print) | 1550-3607 |
Bibliographical note
Publisher Copyright:© 2022 IEEE.
Keywords
- Hybrid visible light communication/radio-frequency systems
- cell-Free massive MIMO
- user association
ASJC Scopus subject areas
- Computer Networks and Communications
- Electrical and Electronic Engineering