Abstract
The cell-free massive multiple-input and multiple-output (CF-mMIMO) communication technology has the ability to handle inter-cell interference in MIMO systems, making it a potential candidate for sixth-generation (6G) wireless communication. A CF-mMIMO system is investigated in this paper for mission-critical ultra-reliable low latency communication (URLLC) applications involving a central processing unit (CPU), many distributed access points (APs), each with multiple antennas, and multiple single-antenna user equipment (UEs). In order to maximize energy efficiency (EE) and throughput gains, each AP is linked to the CPU through a fronthaul link with limited capacity, which handles the quantized uplink data to the CPU. We assume that each AP serves fewer UEs. Our approach has a minimal signal processing complexity and offers UEs uniform quality of service (QoS) as well as improved EE. Closed-form expression for outage probability (OP) in the uplink of the CF-mMIMO system considering Welch-Satterthwaite approximation is derived using a variety of Doppler power spectra (DPS) models that consider imperfect channel state information (CSI) and mobility of UEs. Our numerical simulations validate the correctness of the derived expressions.
| Original language | English |
|---|---|
| Title of host publication | ICC 2023 - IEEE International Conference on Communications |
| Subtitle of host publication | Sustainable Communications for Renaissance |
| Editors | Michele Zorzi, Meixia Tao, Walid Saad |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 4317-4322 |
| Number of pages | 6 |
| ISBN (Electronic) | 9781538674628 |
| DOIs | |
| Publication status | Published - 2023 |
| Externally published | Yes |
| Event | 2023 IEEE International Conference on Communications, ICC 2023 - Rome, Italy Duration: 28 May 2023 → 1 Jun 2023 |
Publication series
| Name | IEEE International Conference on Communications |
|---|---|
| Volume | 2023-May |
| ISSN (Print) | 1550-3607 |
Conference
| Conference | 2023 IEEE International Conference on Communications, ICC 2023 |
|---|---|
| Country/Territory | Italy |
| City | Rome |
| Period | 28/05/23 → 1/06/23 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Free Keywords
- Cell-free massive multiple-input and multiple-output
- Doppler power spectra models
- imperfect channel state information
- outage probability
- user mobility
ASJC Scopus subject areas
- Computer Networks and Communications
- Electrical and Electronic Engineering
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