Abstract
In this paper, the outage probabilities of relay-assisted millimeter wave (mmWave) cellular systems employing joint spatial division and multiplexing (JSDM) are investigated. It is assumed that the macro base station (BS) equipped with a large number of antennas serves the single antenna relay and users simultaneously and that the relay is located at the edge of the macro cell. Theoretical analysis of the signal-to-interference-plus-noise ratio (SINR) outage probabilities of each user with and without the second stage precoding is first obtained, respectively. The cell SINR outage probabilities are then derived. Under the noise-limited assumption, simplified closed-form expressions of the outage probabilities are given as well. The simulation results demonstrating the performance improvement due to the relay are provided. Overall, the impact of deploying a relay in the mmWave cellular systems on the outage probabilities is characterized.
| Original language | English |
|---|---|
| Article number | 8709762 |
| Pages (from-to) | 60793-60805 |
| Number of pages | 13 |
| Journal | IEEE Access |
| Volume | 7 |
| DOIs | |
| State | Published - 2019 |
Keywords
- Millimeter wave
- joint spatial division and multiplexing
- outage probability
- relay