|
Ergodic Rate in Non-Orthogonal Multiple Access-Based Random Heterogeneous Networks
|
| |
|
|
|
Abstract: (22 Views) |
In response to the challenges for design of 5G and beyond, new technologies for wireless networks have been proposed, including heterogeneous networks (HetNets) and non-orthogonal multiple access (NOMA) to enhance spectral efficiency. In this paper, the performance of spectral efficiency in random NOMA-enabled heterogeneous networks is analyzed. A K-tier multi-cell heterogeneous networks is considered, where the two-user NOMA technique is applied in all tiers. The base stations and users are equipped with a single-antenna. The locations of base stations and users are randomly distributed regarding homogeneous Poisson point processes (HPPPs). Stochastic geometry approaches are exploited to characterize the ergodic rate. The effects of HetNets and NOMA technologies are investigated using numerical results. The results reveal that applying NOMA to a HetNet improves the spectrum efficiency performance. Furthermore, considering NOMA technology in all tiers of the heterogeneous networks significantly improves the ergodic rate.
|
|
| Keywords: Non-orthogonal multiple access (NOMA), Heterogeneous networks (HetNets), Ergodic rate, Stochastic geometry. |
|
|
Full-Text [PDF 909 kb]
(35 Downloads)
|
Type of Study: Scientific-extension |
Subject:
Special
Received: 2026/05/10 | Accepted: 2026/03/16 | Published: 2026/03/16
|
|
|
|
|
|
|
| Add your comments about this article |
|
|
|
