Capacity analysis of NOMA-enabled underwater VLC networks

Name: Capacity analysis of NOMA-enabled underwater VLC networks
Author: Elamassie, Mohammed, Bariah, L., Uysal, Murat, Muhaidat, S., Sofotasios, P. C.

İsim	Capacity analysis of NOMA-enabled underwater VLC networks
Yazar	Elamassie, Mohammed, Bariah, L., Uysal, Murat, Muhaidat, S., Sofotasios, P. C.
Basım Tarihi:	2021
Basım Yeri	- IEEE
Konu	Asymptotic sum capacity, Lognormal fading, Non-orthogonal multiple access, Orthogonal frequency division multiple access, Sum capacity, Underwater optical turbulence, Underwater visible light communication
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	2169-3536
Kayıt Numarası	edbaf26a-a393-4ee1-8bc7-34a58f546624
Lokasyon	Electrical & Electronics Engineering
Tarih	2021
Örnek Metin	Visible light communication (VLC) has recently emerged as an enabling technology for high capacity underwater wireless sensor networks. Non-orthogonal multiple access (NOMA) has been also proven capable of handling a massive number of sensor nodes while increasing the sum capacity. In this paper, we consider a VLC-based underwater sensor network where a clusterhead communicates with several underwater sensor nodes based on NOMA. We derive a closed-form expression for the NOMA system capacity over underwater turbulence channels modeled by lognormal distribution. NOMA sum capacity in the absence of underwater optical turbulence is also considered as a benchmark. Our results reveal that the overall capacity of NOMA-enabled Underwater VLC networks is significantly affected by the propagation distance in underwater environments. As a result, effective wireless transmission at high and moderate spectral efficiency levels can be practically achieved in underwater environments only in the context of local area networks. Moreover, we compare the achievable capacity of NOMA system with its counterpart, i.e., orthogonal frequency division multiple access (OFDMA). Our results reveal that NOMA system is not only characterized by achieving higher sum capacity than the sum capacity of its counterpart, OFDMA system. It is also shown that the distances between sensor nodes and the clusterhead for achieving the highest sum capacity in these two multiple access systems are different.
DOI	10.1109/ACCESS.2021.3122399
Cilt	9

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Capacity analysis of NOMA-enabled underwater VLC networks

Yazar Elamassie, Mohammed, Bariah, L., Uysal, Murat, Muhaidat, S., Sofotasios, P. C.

Basım Tarihi 2021

Basım Yeri - IEEE

Konu Asymptotic sum capacity, Lognormal fading, Non-orthogonal multiple access, Orthogonal frequency division multiple access, Sum capacity, Underwater optical turbulence, Underwater visible light communication

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 2169-3536

Kayıt Numarası edbaf26a-a393-4ee1-8bc7-34a58f546624

Lokasyon Electrical & Electronics Engineering

Tarih 2021

Örnek Metin Visible light communication (VLC) has recently emerged as an enabling technology for high capacity underwater wireless sensor networks. Non-orthogonal multiple access (NOMA) has been also proven capable of handling a massive number of sensor nodes while increasing the sum capacity. In this paper, we consider a VLC-based underwater sensor network where a clusterhead communicates with several underwater sensor nodes based on NOMA. We derive a closed-form expression for the NOMA system capacity over underwater turbulence channels modeled by lognormal distribution. NOMA sum capacity in the absence of underwater optical turbulence is also considered as a benchmark. Our results reveal that the overall capacity of NOMA-enabled Underwater VLC networks is significantly affected by the propagation distance in underwater environments. As a result, effective wireless transmission at high and moderate spectral efficiency levels can be practically achieved in underwater environments only in the context of local area networks. Moreover, we compare the achievable capacity of NOMA system with its counterpart, i.e., orthogonal frequency division multiple access (OFDMA). Our results reveal that NOMA system is not only characterized by achieving higher sum capacity than the sum capacity of its counterpart, OFDMA system. It is also shown that the distances between sensor nodes and the clusterhead for achieving the highest sum capacity in these two multiple access systems are different.

DOI 10.1109/ACCESS.2021.3122399

Cilt 9