Resource Allocation in Energy-Cooperation Enabled Two-Tier NOMA HetNets Toward Green 5G

Xu, Bingyu; Chen, Yue; Carrión, Jesús Requena; Zhang, Tiankui

doi:10.1109/jsac.2017.2726398

Cited by 103 publications

(64 citation statements)

References 41 publications

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“…For example, the heterogeneous network architecture will play an important role in 5G networks, where macro base stations and small cell base stations cooperate for spectrum sharing. The benefits of NOMA for heterogeneous networks has been demonstrated in [123]- [126], as more users can be served in a small cell by exploiting the NOMA principle. In [127]- [130], the applications of NOMA to machine-to-machine (M2M) communications, ultra-dense networks (UDN), and massive machine type communications (mMTC) are studied, respectively, where the use of NOMA can effectively support massive connectivity and the IoT functionality of 5G.…”

Section: Applications Of Noma To Other 5g Scenariosmentioning

confidence: 99%

A Survey on Non-Orthogonal Multiple Access for 5G Networks: Research Challenges and Future Trends

Ding

Lei

Karagiannidis

et al. 2017

IEEE J. Select. Areas Commun.

2,074

1,127

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Non-orthogonal multiple access (NOMA) is an essential enabling technology for the fifth generation (5G) wireless networks to meet the heterogeneous demands on low latency, high reliability, massive connectivity, improved fairness, and high throughput. The key idea behind NOMA is to serve multiple users in the same resource block, such as a time slot, subcarrier, or spreading code. The NOMA principle is a general framework, and several recently proposed 5G multiple access schemes can be viewed as special cases. This survey provides an overview of the latest NOMA research and innovations as well as their applications. Thereby, the papers published in this special issue are put into the content of the existing literature. Future research challenges regarding NOMA in 5G and beyond are also discussed.Z. Ding is also with the School of Computing and Communications, Lancaster University, Lancaster, UK (email: z.ding@lancaster.ac.uk). X. Lei is with the Institute

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Section: Applications Of Noma To Other 5g Scenariosmentioning

confidence: 99%

A Survey on Non-Orthogonal Multiple Access for 5G Networks: Research Challenges and Future Trends

Ding

Lei

Karagiannidis

et al. 2017

IEEE J. Select. Areas Commun.

2,074

1,127

View full text Add to dashboard Cite

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“…In conventional OMA networks, we need to allocate more transmission power to the user with the good quality channel and less transmission power to the one with the worse quality channel, that is,

{\overset{p}{true}}_{m, k} > {\overset{p}{true}}_{m, j}

∣ {\overset{h}{true}}_{m, k} ∣ > ∣ {\overset{h}{true}}_{m, j} ∣

. However, in NOMA networks we need to allocate less transmission power to the user with the good quality channel and more transmission power to the one with the worse quality channel, that is, p m , k > p m , j if | h m , j | > | h m , k | . Mathematically, we should optimize over

P = \{p_{m, j} \geq 0| m \in ℳ| j \in N\}

.…”

Section: Problem Formulation and Proposed Solutionmentioning

confidence: 99%

Maximizing physical layer security in relay‐assisted multicarrier nonorthogonal multiple access transmission

Khan

2018

Internet Technology Letters

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This letter investigates the physical layer security of dual-hop nonorthogonal multiple access (NOMA) networks. We consider a multicarrier transmission scenario which consists of a single source, a relay, an eavesdropper, and multiple users. Our objective is to maximize the sum secure rate of the system with optimal power allocation over different sub-carriers at the source. Because of the rate expression and binary variable, the optimization problem is formulated as a nonconvex and mixed integer programming problem. Thus, the optimal solution is obtained through duality theory which is considered to be an efficient method for solving nonconvex optimization problems. We compare the performance of the proposed NOMA scheme with orthogonal frequency multiple access (OFDMA) scheme. Our simulation results show that the proposed NOMA scheme has good performance in convergence and significantly outperforms the traditional OFDMA scheme. KEYWORDS 5G, cooperative communication, NOMA, physical layer security, power optimization 1 Internet Technology Letters. 2019;2:e76.wileyonlinelibrary.com/journal/itl2

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“…A resource allocation task is studied in [179] for energycollaboration enabled two-tier heterogeneous networks (Het-Nets) with NOMA, including a macro BS and several pico BSs. User association and power control are optimally designed to maximize the efficiency in the energy utilization of the whole system under QoS constraints.…”

Section: B User-engaged Energy-efficient Communication Schemementioning

confidence: 99%

“…Lagrange dual based (sub-gradient) method [114], [178] [110] [179] [93], [94] Multi-stage or nested optimization [74], [156], [161], [173] [174]…”

Section: B User-engaged Energy-efficient Communication Schemementioning

confidence: 99%

See 1 more Smart Citation

Modeling and Analysis of Energy Harvesting and Smart Grid-Powered Wireless Communication Networks: A Contemporary Survey

Chen

et al. 2020

IEEE Trans. on Green Commun. Netw.

102

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The advancements in smart power grid and the advocation of "green communications" have inspired the wireless communication networks to harness energy from ambient environments and operate in an energy-efficient manner for economic and ecological benefits. This article presents a contemporary review of recent breakthroughs on the utilization, redistribution, trading and planning of energy harvested in future wireless networks interoperating with smart grids. This article starts with classical models of renewable energy harvesting technologies. We embark on constrained operation and optimization of different energy harvesting wireless systems, such as point-to-point, multipoint-to-point, multipoint-to-multipoint, multi-hop, and multi-cell systems. We also review wireless power and information transfer technologies which provide a special implementation of energy harvesting wireless communications. A significant part of the article is devoted to the redistribution of redundant (unused) energy harvested within cellular networks, the energy planning under dynamic pricing when smart grids are in place, and two-way energy trading between cellular networks and smart grids. Applications of different optimization tools, such as convex optimization, Lagrangian dual-based method, subgradient method, and Lyapunov-based online optimization, are compared. This article also collates the potential applications of energy harvesting techniques in emerging (or upcoming) 5G/B5G communication systems. It is revealed that an effective redistribution and two-way trading of energy can significantly reduce the electricity bills of wireless service providers and decrease the consumption of brown energy. A list of interesting research directions are provided, requiring further investigation.Index Terms-5G/B5G communication networks, energy har-). The first two authors contributed equally to this work. vesting, smart grid, energy redistribution and trading, optimization techniques. arXiv:1912.13203v1 [eess.SY] 31 Dec 2019 EH and smart gridpowered wireless networks Types and models for RES (Sec. II) Smart grid-powered wireless networks (Sec. VIII) Wireless power and information transfer (Sec. VII) 5G/B5G applications of EH and smart gridpowered wireless networks (Sec. XI) Energy redistribution Energy planning under dynamic pricing (Sec. IX) Two-way energy trading and cooperation (Sec. X) EH-based wireless networks Point-to-point link (Sec. III) Multipoint-to-point system (Sec. IV) Multipoint-to-multipoint system (Sec. V) Multi-hop link (Sec. VI) Lessons learnt and future directions (Sec. XII) Fig. 1. The main structure of this article. from the aspects of network deployment, energy/spectrum efficiency, and delay/bandwidth versus power. Featuring energyharvesting wireless networks, beamforming techniques are reviewed in [22]. Energy scheduling, optimization, and application are presented in [23]. Circuit design, hardware implementation, EH techniques, and communication protocols are reviewed in [24]-[27] with specific emphases on radio frequen...

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Resource Allocation in Energy-Cooperation Enabled Two-Tier NOMA HetNets Toward Green 5G

Cited by 103 publications

References 41 publications

A Survey on Non-Orthogonal Multiple Access for 5G Networks: Research Challenges and Future Trends

A Survey on Non-Orthogonal Multiple Access for 5G Networks: Research Challenges and Future Trends

Maximizing physical layer security in relay‐assisted multicarrier nonorthogonal multiple access transmission

Modeling and Analysis of Energy Harvesting and Smart Grid-Powered Wireless Communication Networks: A Contemporary Survey

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