A Distributed Ambient Backscatter MAC Protocol for Internet-of-Things Networks

Xiao, Cao; Song, Zuxun; Yang, Bo; ElMossallamy, Mohamed A.; Qian, Lijun; Han, Zhu

doi:10.1109/jiot.2019.2955909

Cited by 30 publications

(12 citation statements)

References 32 publications

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“…In [186], a distributed MAC protocol for ABCS is proposed where the backscatter devices achieve power-efficient channel access via the RF signals according to their traffic requirements in a distributed way. The authors consider the coexistence of the traditional RF communications (consisting of a continuous RF source and the legacy users) and ABCSs (consisting of a large number of backscattter devices).…”

Section: B Multiple-access Schemes and Protocolsmentioning

confidence: 99%

Large-Scale Wireless-Powered Networks With Backscatter Communications—A Comprehensive Survey

Rezaei

Tellambura

Herath

2020

IEEE Open J. Commun. Soc.

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Massive and ubiquitous deployment of devices in networks of fifth generation (5G) and beyond wireless has necessitated the development of ultra-low-power wireless communication paradigms. Recently, wireless-powered networks with backscatter communications (WPN-BCs) has been emerged as a most prominent technology for enabling large-scale selfsustainable wireless networks with the capabilities of RF energy harvesting (EH) and of extreme low power consumption. Therefore, we provide a comprehensive literature review on the fundamentals, challenges and the on-going research efforts in the domain of WPN-BCs. Our emphasis is on large-scale networks. In particular, we discuss signal processing aspects, network design issues and efficient communication techniques. Moreover, we review emerging technologies for WPN-BCs to bring about the best use of resources. Some applications of this innovative technology are also highlighted. Finally, we address some open research problems and future research directions.

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Section: B Multiple-access Schemes and Protocolsmentioning

confidence: 99%

Large-Scale Wireless-Powered Networks With Backscatter Communications—A Comprehensive Survey

Rezaei

Tellambura

Herath

2020

IEEE Open J. Commun. Soc.

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“…After calculating partial derivatives of (20), we obtain (21) at the top of the next page. Now we calculate the least common multiple (LCM) of (21), and arrive at (22), written at the top of the next page. By setting µ m P m = 0, and then solving for ω m , it results in ω * m as:…”

Section: B Power Allocation At Bss For the Given Reflection Coefficient Of Backscatter Tagsmentioning

confidence: 99%

“…By proper implementation, the ambient BackCom removes the need of a dedicated RF source [20]. However, this also brings some complexity in the hardware design of the backscatter tag and the receiver [21]. Fig.…”

Section: Introductionmentioning

confidence: 99%

Ambient BackCom in Beyond 5G NOMA Networks: A Multi-Cell Resource Allocation Framework

Khan¹,

Dev²,

Javed³

et al. 2021

Preprint

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This article proposes a new resource allocation framework that uses the dual theory approach. Specifically, the sum-rate of the multi-cell network having backscatter tags and NOMA user equipments is maximized by formulating a joint optimization problem. To find the efficient base station transmit power and backscatter reflection coefficient in each cell, the original problem is first divided into two subproblems and then derived the closed-form solutions. A comparison with the orthogonal multiple access (OMA) ambient BackCom and pure NOMA transmission has been provided.

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“…The outage probabilities are examined to evaluate performance of both BC and RT. The authors in [13] proposed a distributed multiple access control (MAC) protocol. By leveraging on the ambient RF signal, multiple BDs are able to communicate with each other.…”

Section: Introductionmentioning

confidence: 99%

Joint Design of Improved Spectrum and Energy Efficiency With Backscatter NOMA for IoT

Silva

et al. 2022

IEEE Access

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To develop emerging transmission techniques for potential applications of Internet of Things (IoT), the system performance analysis of a cognitive radio (CR)-enabled ambient backscatter (AmBC) system will be studied in this paper with functionality of non-orthogonal multiple access (NOMA). In the proposed scheme, a base station communicates with two destinations via a designated backscatter device. It is assumed that the relay node is fitted with two different interfaces and can simultaneously collect/decode and backscatter the received source signals. Such transmission mechanism benefits to design various applications in IoT as well as wireless systems with improved performance. To exhibit system performance metrics, the outage probability and the ergodic capacity of the recipient nodes are derived analytically. Furthermore, it is shown that employing AmBC NOMA together with CR for secondary communication can significantly improve overall network performance in terms of the achievable throughput in delaylimited and delay-tolerant modes and outage probability. Numerical results show that: 1) The proposed system can improve the spectrum efficiency by employing both CR and NOMA techniques; 2) Compared with the orthogonal multiple access (OMA)-aided AmBC systems, the considered CR AmBC system relying on NOMA can obtain better reliability in the whole range of SNR; 3) There are error floors for the outage probability in the high SNR regime due to required target rates; 4) There exists a trade-off between system performance of IoT devices and power allocation coefficients associated with NOMA; 5) We find energy efficiency factor as evident of further improvement in such system.

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A Distributed Ambient Backscatter MAC Protocol for Internet-of-Things Networks

Cited by 30 publications

References 32 publications

Large-Scale Wireless-Powered Networks With Backscatter Communications—A Comprehensive Survey

Large-Scale Wireless-Powered Networks With Backscatter Communications—A Comprehensive Survey

Ambient BackCom in Beyond 5G NOMA Networks: A Multi-Cell Resource Allocation Framework

Joint Design of Improved Spectrum and Energy Efficiency With Backscatter NOMA for IoT

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