| Autor: |
Sezer C. Tokgoz, Saud Althunibat, Scott L. Miller, Khalid A. Qaraqe |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
IEEE Access, Vol 10, Pp 2895-2907 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2169-3536 |
| DOI: |
10.1109/ACCESS.2021.3134951 |
| Popis: |
Bearing in mind the high data rate and volume requirements of 5G and beyond networks, millimeter wave (mmWave) systems can be utilized with the assistance of free-space optical (FSO) systems since both technologies exhibit distinctive behaviors under different weather conditions. Therefore, in this study, we investigate a relay-based dual-hop hybrid FSO-mmWave systems from an outage performance point of view, where the communication in each hop is established on both FSO and mmWave links simultaneously. Specifically, Nakagami-m distribution is used for mmWave fading channels, while gamma-gamma distribution is assumed for FSO turbulence channels. Two well-known amplify-and-forward (AF) relaying schemes are examined during data transmission, in which the power amplification operation is based on partial and full channel state information of the system, namely, fixed-gain and variable-gain AF relaying methods. The effects of fundamental system variables on the outage analysis of the relay-based hybrid transmissions are investigated by obtaining exact closed-form derivations of the outage probability and effective throughput. Based upon the results, it is shown that the proposed closed-form expressions are in good match with the Monte-Carlo simulations. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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