Analysis of Multi-User-Based UAV System With Outdated CSI
In this paper, we investigate the performance of multiple-input and multiple-output (MIMO) unmanned air vehicle (UAV) based multi-user communication systems over generalized Nakagami-<inline-formula> <tex-math notation="LaTeX">$m$ </tex-math></inline-formula> fading...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2024-01-01
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| Series: | IEEE Open Journal of the Communications Society |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10374186/ |
| _version_ | 1797351676708913152 |
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| author | Parvez Shaik Cihat Kececi Kamal K. Garg Muhammad Ismail Erchin Serpedin |
| author_facet | Parvez Shaik Cihat Kececi Kamal K. Garg Muhammad Ismail Erchin Serpedin |
| author_sort | Parvez Shaik |
| collection | DOAJ |
| description | In this paper, we investigate the performance of multiple-input and multiple-output (MIMO) unmanned air vehicle (UAV) based multi-user communication systems over generalized Nakagami-<inline-formula> <tex-math notation="LaTeX">$m$ </tex-math></inline-formula> fading channels subject to channel feedback delays. The impact of decode-and-forward (DF) based relaying and outdated channel state information is assessed at the receiver nodes. To reduce the complexity and retain the MIMO gains, the transmit antenna selection (TAS) strategy is used to select the best antenna at the source and UAV nodes. A generic framework in the form of closed-form analytical expressions for outage probability (OP), asymptotic OP, and the average symbol error rate of higher-order quadrature amplitude modulation (QAM) schemes such as hexagonal QAM, rectangular QAM, and cross QAM are derived. In addition, energy efficiency analysis is also performed for the considered system model. In this framework, altitude and location-dependent path loss modeling are considered for the air-to-ground links. Optimization of UAV location and altitude is performed through a limited-memory Broyden-Fletcher-Goldfarb-Shanno (LBFGS) algorithm to attain minimum OP (MOP). Results illustrate optimal performance dependent on the channel correlation parameters, antenna elements, and fading conditions. Monte-Carlo simulations are performed to validate the derived analytical results and compared with the existing works. |
| first_indexed | 2024-03-08T13:04:00Z |
| format | Article |
| id | doaj.art-29e87683e0ce4860b1051afb4d38c4c2 |
| institution | Directory Open Access Journal |
| issn | 2644-125X |
| language | English |
| last_indexed | 2024-03-08T13:04:00Z |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Open Journal of the Communications Society |
| spelling | doaj.art-29e87683e0ce4860b1051afb4d38c4c22024-01-19T00:01:20ZengIEEEIEEE Open Journal of the Communications Society2644-125X2024-01-01544245610.1109/OJCOMS.2023.334738810374186Analysis of Multi-User-Based UAV System With Outdated CSIParvez Shaik0https://orcid.org/0000-0002-3125-1051Cihat Kececi1https://orcid.org/0000-0002-2097-5855Kamal K. Garg2https://orcid.org/0000-0002-3618-0184Muhammad Ismail3https://orcid.org/0000-0002-8051-9747Erchin Serpedin4https://orcid.org/0000-0001-9069-770XElectrical and Computer Engineering Program, Texas A&M University at Qatar, Doha, QatarDepartment of Electrical and Computer Engineering, Texas A&M University at College Station, College Station, TX, USASchool of Technology, Pandit Deendayal Energy University, Gandhinagar, IndiaDepartment of Computer Science, Tennessee Tech University, Cookeville, TN, USADepartment of Electrical and Computer Engineering, Texas A&M University at College Station, College Station, TX, USAIn this paper, we investigate the performance of multiple-input and multiple-output (MIMO) unmanned air vehicle (UAV) based multi-user communication systems over generalized Nakagami-<inline-formula> <tex-math notation="LaTeX">$m$ </tex-math></inline-formula> fading channels subject to channel feedback delays. The impact of decode-and-forward (DF) based relaying and outdated channel state information is assessed at the receiver nodes. To reduce the complexity and retain the MIMO gains, the transmit antenna selection (TAS) strategy is used to select the best antenna at the source and UAV nodes. A generic framework in the form of closed-form analytical expressions for outage probability (OP), asymptotic OP, and the average symbol error rate of higher-order quadrature amplitude modulation (QAM) schemes such as hexagonal QAM, rectangular QAM, and cross QAM are derived. In addition, energy efficiency analysis is also performed for the considered system model. In this framework, altitude and location-dependent path loss modeling are considered for the air-to-ground links. Optimization of UAV location and altitude is performed through a limited-memory Broyden-Fletcher-Goldfarb-Shanno (LBFGS) algorithm to attain minimum OP (MOP). Results illustrate optimal performance dependent on the channel correlation parameters, antenna elements, and fading conditions. Monte-Carlo simulations are performed to validate the derived analytical results and compared with the existing works.https://ieeexplore.ieee.org/document/10374186/UAVMIMOTASDFLBFGS optimizationHQAM |
| spellingShingle | Parvez Shaik Cihat Kececi Kamal K. Garg Muhammad Ismail Erchin Serpedin Analysis of Multi-User-Based UAV System With Outdated CSI IEEE Open Journal of the Communications Society UAV MIMO TAS DF LBFGS optimization HQAM |
| title | Analysis of Multi-User-Based UAV System With Outdated CSI |
| title_full | Analysis of Multi-User-Based UAV System With Outdated CSI |
| title_fullStr | Analysis of Multi-User-Based UAV System With Outdated CSI |
| title_full_unstemmed | Analysis of Multi-User-Based UAV System With Outdated CSI |
| title_short | Analysis of Multi-User-Based UAV System With Outdated CSI |
| title_sort | analysis of multi user based uav system with outdated csi |
| topic | UAV MIMO TAS DF LBFGS optimization HQAM |
| url | https://ieeexplore.ieee.org/document/10374186/ |
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