Outage-Constrained Robust Multigroup Multicast Beamforming for Satellite-Based Internet of Things Coexisting With Terrestrial Networks

Yan, Yan; An, Kang; Zhang, Bangning; Zhu, Wei-Ping; Ding, Guoru

doi:10.1109/jiot.2020.3042831

Cited by 17 publications

(5 citation statements)

References 32 publications

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“…In response to the growing demand for spectrum-efficient satellite-based IoT systems, ref. [ 101 ] introduces a cognitive satellite-terrestrial framework that leverages multibeam satellite capabilities with full frequency reuse. The proposed scheme maximizes the achievable rate while ensuring outage probability and power consumption constraints.…”

Section: Iort Systems Based On Space-borne Ntn Networkmentioning

confidence: 99%

Non-Terrestrial Networks for Energy-Efficient Connectivity of Remote IoT Devices in the 6G Era: A Survey

Plastras,

Tsoumatidis,

Skoutas

et al. 2024

Sensors

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The Internet of Things (IoT) is gaining popularity and market share, driven by its ability to connect devices and systems that were previously siloed, enabling new applications and services in a cost-efficient manner. Thus, the IoT fuels societal transformation and enables groundbreaking innovations like autonomous transport, robotic assistance, and remote healthcare solutions. However, when considering the Internet of Remote Things (IoRT), which refers to the expansion of IoT in remote and geographically isolated areas where neither terrestrial nor cellular networks are available, internet connectivity becomes a challenging issue. Non-Terrestrial Networks (NTNs) are increasingly gaining popularity as a solution to provide connectivity in remote areas due to the growing integration of satellites and Unmanned Aerial Vehicles (UAVs) with cellular networks. In this survey, we provide the technological framework for NTNs and Remote IoT, followed by a classification of the most recent scientific research on NTN-based IoRT systems. Therefore, we provide a comprehensive overview of the current state of research in IoRT and identify emerging research areas with high potential. In conclusion, we present and discuss 3GPP’s roadmap for NTN standardization, which aims to establish an energy-efficient IoRT environment in the 6G era.

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Section: Iort Systems Based On Space-borne Ntn Networkmentioning

confidence: 99%

Non-Terrestrial Networks for Energy-Efficient Connectivity of Remote IoT Devices in the 6G Era: A Survey

Plastras,

Tsoumatidis,

Skoutas

et al. 2024

Sensors

View full text Add to dashboard Cite

show abstract

“…According to (10), the mathematical problem is then formulated as follows: In problem (26), the maximum system capacity can be obtained by finding the optimal values of b , C e , and α.…”

Section: A Resource Allocation For the Transmission Scheme With Csimentioning

confidence: 99%

“…As mentioned before, the first step to address problem ( 26) is to tackle the power allocation and codebook assignment variables in constraints (A1)-(A5) as well as the objective function. From (10), it can be seen that maximizing I s is equivalent to maximizing |U e |, this means that physical resources need to be allocated to as many as possible. In the codebook assignment phase, we assume that the maximum allowable transmission power P is uniformly distributed among all codebooks.…”

Section: A Resource Allocation For the Transmission Scheme With Csimentioning

confidence: 99%

Resource Allocation for SCMA-Based IoT Systems With Layered Multicast

Zhang

2021

IEEE Access

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Due to the lack of spectrum resources, effective methods must be proposed to meet the needs of the Internet of Things (IoT) massive connectivity. In this paper, two effective techniques to improve spectral efficiency, namely, sparse code multiple access (SCMA) and wireless multicast, are used together for the IoT system to expand network capacity. Different from existing works, we introduce layered coding into the SCMA-based IoT system and consider two channel state information (CSI) feedback scenarios, which can make full use of the diversity gain of multiple receivers. The original multicast data are divided into one basic layer (BL) and several enhancement layers (ELs) by layered coding. IoT receivers with good channel gain can achieve better quality of service by receiving more data layers. In the transmission scheme with CSI, the physical resources allocated to the BL and ELs can be dynamically adjusted. In the transmission scheme without CSI, a fixed resource allocation scheme is performed because it is impossible to calculate the multicast rate of each codebook in real time. To further improve the system capacity, we have proposed resource allocation algorithms for these two schemes according to different requirements for computational complexity. The simulation results show that the proposed schemes can provide a higher system capacity than unicast SCMA and nonlayered multicast SCMA.INDEX TERMS SCMA, IoT, wireless multicast, layered coding.

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“…Recently, sophisticated spectrum sharing techniques have emerged as an effective means of addressing the spectrum scarcity problem [7]. The most popular spectrum sharing modes are the overlay [8] and the underlay mode [9]. In the overlay mode, spectrum sharing is performed with the aid of accurate spectrum sensing and spectrum prediction both in integrated satellite-terrestrial networks [8], [10], as well as in integrated geostationary (GEO) and nongeostationary (NGSO) scenarios [11].…”

Section: Introductionmentioning

confidence: 99%

Interference Management by Harnessing Multi-Domain Resources in Spectrum-Sharing Aided Satellite-Ground Integrated Networks

Ding,

Lei,

Zou

et al. 2024

IEEE Trans. Veh. Technol.

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A spectrum-sharing satellite-ground integrated network is conceived, consisting of a pair of non-geostationary orbit (NGSO) constellations and multiple terrestrial base stations, which impose the co-frequency interference (CFI) on each other. The CFI may increase upon increasing the number of satellites. To manage the potentially severe interference, we propose to rely on joint multi-domain resource aided interference management (JMDR-IM). Specifically, the coverage overlap of the constellations considered is analyzed. Then, multi-domain resourcesincluding both the beam-domain and power-domain -are jointly utilized for managing the CFI in an overlapping coverage region. This joint resource utilization is performed by relying on our specifically designed beam-shut-off and switching based beam scheduling, as well as on long short-term memory based joint autoregressive moving average assisted deep Q network aided power scheduling. Moreover, the outage probability (OP) of the proposed JMDR-IM scheme is derived, and the asymptotic analysis of the OP is also provided. Our performance evaluations demonstrate the superiority of the proposed JMDR-IM scheme in terms of its increased throughput and reduced OP.

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Outage-Constrained Robust Multigroup Multicast Beamforming for Satellite-Based Internet of Things Coexisting With Terrestrial Networks

Cited by 17 publications

References 32 publications

Non-Terrestrial Networks for Energy-Efficient Connectivity of Remote IoT Devices in the 6G Era: A Survey

Non-Terrestrial Networks for Energy-Efficient Connectivity of Remote IoT Devices in the 6G Era: A Survey

Resource Allocation for SCMA-Based IoT Systems With Layered Multicast

Interference Management by Harnessing Multi-Domain Resources in Spectrum-Sharing Aided Satellite-Ground Integrated Networks

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