Outage Analysis of Cooperative NOMA Using Maximum Ratio Combining at Intersections
arXiv:1909.01989
Abstract
The paper investigates the improvement of using maximum ratio combining (MRC) in cooperative vehicular communications (VCs) transmission schemes considering non-orthogonal multiple access scheme (NOMA) at intersections. The transmission occurs between a source and two destination nodes with a help of a relay. The transmission is subject to interference originated from vehicles that are located on the roads. Closed form outage probability expressions are obtained. We compare the performance of MRC cooperative NOMA with a classical cooperative NOMA, and show that implementing MRC in cooperative NOMA transmission offers a significant improvement over the classical cooperative NOMA in terms of outage probability. We also compare the performance of MRC cooperative NOMA with MRC cooperative orthogonal multiple access (OMA), and we show that NOMA has a better performance than OMA. Finally, we show that the outage probability increases when the nodes come closer to the intersection, and that using MRC considering NOMA improves the performance in this context. The analysis is verified with Monte Carlo simulations.
arXiv commentarXiv admin note: substantial text overlap with arXiv:1904.11022
References in corpus (6)
- On the Performance of Non-Orthogonal Multiple Access in 5G Systems with Randomly Deployed Users
- Relay Selection for Cooperative NOMA
- MIMO-NOMA Design for Small Packet Transmission in the Internet of Things
- Outage Analysis of Cooperative NOMA Using Maximum Ratio Combining at Intersections
- Outage Analysis of Cooperative NOMA in Millimeter Wave Vehicular Network at Intersections
- Non-Orthogonal Multiple Access Performance for Millimeter Wave in Vehicular Communications