Generic BER analysis of VLC channels impaired by 3D user-mobility and imperfect CSI
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Dosyalar
Tarih
2021-07
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Institute of Electrical and Electronics Engineers Inc.
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Visible light communications (VLC) has emerged as a high-speed, low-cost, and green supplement for the existing radio frequency (RF) based infrastructures. However, the performance of VLC based systems is found to degrade significantly due to detrimental outages caused by non-negligible variations in the VLC channel-gain, that are jointly induced by radial user-mobility and random photodetector-orientation (together designated as 3D mobility in this letter). In addition to the 3D user-mobility mentioned above, the performance of VLC based systems is further limited by imperfect channel-state information (CSI). Such degradations in the VLC-link caused by the aforementioned factors necessitate the quantification of performance-metrics for further benchmarking/receiver-design. In this work, an analytical expression for bit-error rate (BER) is derived for a single LED indoor VLC system considering the radial user-mobility, random receiver orientation, and imperfect CSI altogether. Further, the derived BER expressions are validated using computer-simulations using typical VLC channel models from the literature. A close agreement between the analytical and the simulated BER is observed, which verifies the accuracy of the presented analysis.
Açıklama
Anahtar Kelimeler
3D user-mobility, Analytical models, Biological system modeling, Imperfect CSI, Laplace equations, Probabilistic logic, Random receiver orientation, Receivers, Three-dimensional displays, Visible light communication, VLC, Benchmarking, Bit error rate, Visible light communication, Analytical expressions, BER expression, Channel model, Imperfect channel state information, Performance metrics, Radio frequencies, Receiver orientation, Visible light communications (VLC), Channel state information, Massive-MIMO, Performance
Kaynak
IEEE Communications Letters
WoS Q DeÄŸeri
Q2
Scopus Q DeÄŸeri
Q1
Cilt
25
Sayı
7
Künye
Reddy Sekhar, K., Miramirkhani, F., Mitra, R., Turlapaty, A.C. (2021). Generic BER Analysis of VLC Channels Impaired by 3D User-Mobility and Imperfect CSI. IEEE Communications Letters, 25(7), 2319 - 2323. doi:10.1109/LCOMM.2021.3068051
