An Efficient Frequency Diversity Scheme for Ultra-Reliable Communications in Two-Path Fading Channels
Fuente:
arXiv
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Preprint |
| Published: |
2022
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866916381983768576 |
|---|---|
| author | Besser, Karl-Ludwig Jorswieck, Eduard A. Coon, Justin P. |
| author_facet | Besser, Karl-Ludwig Jorswieck, Eduard A. Coon, Justin P. |
| contents | We consider a two-ray ground reflection scenario with unknown distance between transmitter and receiver. By utilizing two frequencies in parallel, we can mitigate possible destructive interference and ensure ultra-reliability with only very limited knowledge at the transmitter. In order to achieve this ultra-reliability, we optimize the frequency spacing such that the worst-case receive power is maximized. Additionally, we provide an algorithm to calculate the optimal frequency spacing. Besides the receive power, we also analyze the achievable rate and outage probability. It is shown that the frequency diversity scheme achieves a significant improvement in terms of reliability over using a single frequency. In particular, we demonstrate the effectiveness of the proposed approach by a numerical simulation of an unmanned aerial vehicle (UAV) flying above flat terrain. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2206_13459 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | An Efficient Frequency Diversity Scheme for Ultra-Reliable Communications in Two-Path Fading Channels Besser, Karl-Ludwig Jorswieck, Eduard A. Coon, Justin P. Information Theory We consider a two-ray ground reflection scenario with unknown distance between transmitter and receiver. By utilizing two frequencies in parallel, we can mitigate possible destructive interference and ensure ultra-reliability with only very limited knowledge at the transmitter. In order to achieve this ultra-reliability, we optimize the frequency spacing such that the worst-case receive power is maximized. Additionally, we provide an algorithm to calculate the optimal frequency spacing. Besides the receive power, we also analyze the achievable rate and outage probability. It is shown that the frequency diversity scheme achieves a significant improvement in terms of reliability over using a single frequency. In particular, we demonstrate the effectiveness of the proposed approach by a numerical simulation of an unmanned aerial vehicle (UAV) flying above flat terrain. |
| title | An Efficient Frequency Diversity Scheme for Ultra-Reliable Communications in Two-Path Fading Channels |
| topic | Information Theory |
| url | https://arxiv.org/abs/2206.13459 |