When NOMA Multiplexing Meets Symbiotic Ambient Backscatter Communication: Outage Analysis

Elsayed, Mohamed; Samir, Ahmed; El-Banna, Ahmad A. Aziz; Li, Xingwang; ElHalawany, Basem M.

doi:10.1109/tvt.2021.3127043

Cited by 38 publications

(19 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since I 1 in (A.3) can not be solved in terms of elementary functions, we reformulate it based on Meijer's G-functions [23,Eq. (11,14)], as follows,…”

Section: Discussionmentioning

confidence: 99%

Symbiotic Ambient Backscatter IoT Transmission over NOMA-Enabled Network

Elsayed¹,

ElHalawany²,

Li³

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

Non-orthogonal multiple access (NOMA) and ambient backscatter communication (AmBC) play major roles to enhance spectrum efficiency in wireless communication systems. Besides, the AmBC provides good reinforcement for the current trend toward dispensing batteries for battery-free Internet-of-Things (IoT) devices. In this paper, we propose a symbiotic battery-free IoT system, that exploits the downlink transmission of a NOMA multiplexing enabled cellular network, to permit an IoT spectrum-efficient uplink communication. The IoT backscatter device (BD) performs a symbiotic radio (SR) relation with the cellular source to power its communication by intelligently reflecting the received power. We derive a closed-form expression of the ergodic capacity (EC) of the BD transmission and tight approximations of the ECs of the cellular source transmission, where all channels undergo Nakagami-m fading. Additionally, we validate the analytical results obtained using Monte-Carlo simulations. The influences of several system parameters such as power allocation factor, reflection coefficient, and channels’ severity factors have been investigated. Finally, the performance of the proposed system is compared with a benchmark OMA-based system to highlight the achievable performance improvement.

show abstract

“…Since I 1 in (A.3) can not be solved in terms of elementary functions, we reformulate it based on Meijer's G-functions [23,Eq. (11,14)], as follows,…”

Section: Discussionmentioning

confidence: 99%

Symbiotic Ambient Backscatter IoT Transmission over NOMA-Enabled Network

Elsayed¹,

ElHalawany²,

Li³

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…In this section, we derive an approximated closed-form expression for the ergodic capacity (EC) of the proposed system under the condition a i = b i . The instantaneous channel capacities for the two messages, C x l , C x 2 , are given by [13,22]…”

Section: Ergodic Capacity Analysismentioning

confidence: 99%

“…NOMA enables simultaneous transmission of multiplexed user data using the same resources (time/frequency/code). Power domain (PD) NOMA is the most common type of NOMA, where the multiplexing is performed by assigning different power levels for the multiplexed messages based on the power allocation factor parameter at the transmitter, while the receiver needs to perform successive interference cancellation (SIC) operation to separate the messages [13][14][15]. Authors in [16][17][18] investigated the performance of NOMA assisted underwater optical communication system in terms of coverage probability and system OP.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Dual-Hop Hybrid RF-UOWC NOMA Systems

Samir

Elsayed

El-Banna

et al. 2022

Sensors

Self Cite

View full text Add to dashboard Cite

The hybrid combination between underwater optical wireless communication (UOWC) and radio frequency (RF) is a vital demand for enabling communication through the air–water boundary. On the other hand, non-orthogonal multiple access (NOMA) is a key technology for enhancing system performance in terms of spectral efficiency. In this paper, we propose a downlink NOMA-based dual-hop hybrid RF-UOWC with decode and forward (DF) relaying. The UOWC channels are characterized by exponential-generalized Gamma (EGG) fading, while the RF channel is characterized by Rayleigh fading. Exact closed-form expressions of outage probabilities and approximated closed-form expressions of ergodic capacities are derived, for each NOMA individual user and the overall system as well, under the practical assumption of imperfect successive interference cancellation (SIC). These expressions are then verified via Monte-Carlo simulation for various underwater scenarios. To gain more insight into the system performance, we analyzed the asymptotic outage probabilities and the diversity order. Moreover, we formulated and solved a power allocation optimization problem to obtain an outage-optimal performance. For the sake of comparison and to highlight the achievable gain, the system performance is compared against a benchmark orthogonal multiple access (OMA)-based system.

show abstract

“…In this section, we drive the outage diversity order (D) which is defined as the slope of outage curves at high SNR. According to [34], we can calculate diversity order as D l = − lim ρ→∞ (log(OP l ) log(ρ)), where l ∈ {1, 2, sys}. According to (17), (18) and (20), we can write…”

Section: E Diversity Ordermentioning

confidence: 99%

Mixed RIS-Relay NOMA-Based RF-UOWC Systems

Elsayed¹,

Samir²,

El-Banna³

et al. 2022

Preprint

View full text Add to dashboard Cite

Reconfigurable intelligent surface (RIS), nonorthogonal multiple access (NOMA), and underwater optical wireless communication (UOWC) are paradigms of technologies that drive the development of next generation communication systems. In this paper, we investigate the performance of a NOMA-based RIS-assisted hybrid radio frequency (RF) UOWC system. The ship works as a relay that redirects the received signal to two underwater destinations simultaneously. Due to the interruption of the direct link between the base station and the ship floating on the surface of the water, communication will be carried out via an RIS fixed to an intermediate building. In this paper, we provide new analytical expressions for the outage probability (OP), asymptotic analyses of the OP, and diversity order (D) to gain insights into the system performance. The results showed that the diversity order depends on the UOWC receiver detection technique. In the end, we illustrated that the NOMA-based RIS-assisted system significantly improves the outage performance of hybrid RF-UWOC systems over a benchmark system.

show abstract

When NOMA Multiplexing Meets Symbiotic Ambient Backscatter Communication: Outage Analysis

Cited by 38 publications

References 23 publications

Symbiotic Ambient Backscatter IoT Transmission over NOMA-Enabled Network

Symbiotic Ambient Backscatter IoT Transmission over NOMA-Enabled Network

Performance Analysis of Dual-Hop Hybrid RF-UOWC NOMA Systems

Mixed RIS-Relay NOMA-Based RF-UOWC Systems

Contact Info

Product

Resources

About