Abstract
The performance of non-orthogonal multiple access (NOMA) terahertz communications under beam misalignment is investigated. In particular, closed-form expressions are derived for the probability density function and cumulative distribution function of the signal-to-noise ratio for the near user, and the signal-to-interference-plus-noise for both the far and near users. Capitalizing on the derived statistical expressions for both users, closed-form expressions for the outage probability, average bit error rate, and average channel capacity are derived. Moreover, simple and accurate asymptotic expressions for the aforementioned performance metrics are also provided. Furthermore, an algorithm that jointly considers fair power allocation and the number of antenna array elements to maximize the sum rate is proposed. Our theoretical results are supported by Monte-Carlo simulation results, which emphasize the correctness of the analysis.
| Original language | English |
|---|---|
| Pages (from-to) | 16521-16526 |
| Number of pages | 6 |
| Journal | IEEE Transactions on Vehicular Technology |
| Volume | 74 |
| Issue number | 10 |
| DOIs | |
| State | Published - 2025 |
Bibliographical note
Publisher Copyright:© 1967-2012 IEEE.
Keywords
- Beam misalignment
- NOMA
- THz
- beyond 5G
- power allocation
ASJC Scopus subject areas
- Automotive Engineering
- Aerospace Engineering
- Computer Networks and Communications
- Electrical and Electronic Engineering