Energy Efficiency Optimization for CoMP-SWIPT Heterogeneous Networks

Tang, Jie; Shojaeifard, Arman; So, Daniel K. C.; Wong, Kai-Kit; Zhao, Nan

doi:10.1109/tcomm.2018.2866852

“…The system simulation parameters that we have considered for the simulations are summarized in Table 2. We assume that one smallcell is in the coverage area of a macrocell, where we set the radius of the macrocell and the smallcell to 20 m and 10 m, respectively [17]. ∼ CN (0, I), respectively.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…In recent years, by integrating the WPT with traditional wireless information transmission (WIT), simultaneous wireless information and power transfer (SWIPT) have been recognised as among the main candidate technologies for green communications [11][12][13][14][15], which has been shown to be in a position to improve the WPT performance in HetNets [16][17][18]. The idea of using SWIPT to implement wireless recharging of the batteries in HetNets was first studied in [16], where two integer linear programming methods were proposed to help wireless nodes to scavenge ambient energy.…”

mentioning

confidence: 99%

“…The idea of using SWIPT to implement wireless recharging of the batteries in HetNets was first studied in [16], where two integer linear programming methods were proposed to help wireless nodes to scavenge ambient energy. Tang et al [17] provided a essential study of the QoS-constrained energy efficiency optimization problem for coordinated multi-point (CoMP)-SWIPT HetNets, a decoupled approach was proposed in which the power allocation procedure and beamforming design were separated. Considering multiple Power splitting (PS)-based heterogeneous users in [18], Jiang et al investigated the optimal transmit power minimization design problem of SWIPT systems to achieve green communication design under non-linear energy harvesting model, where the semidefinite relaxation (SDR) are employed to solve and the globe optimal solution was theoretically guaranteed.…”

mentioning

confidence: 99%

See 1 more Smart Citation

AN-Aided Secure Beamforming in Power-Splitting-Enabled SWIPT MIMO Heterogeneous Wireless Sensor Networks

Ge

¹

,

Zhu

²

,

Hao

³

et al. 2019

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In this paper, we investigate the physical layer security in a two-tier heterogeneous wireless sensor network (HWSN) depending on simultaneous wireless information and power transfer (SWIPT) approach for multiuser multiple-input multiple-output wiretap channels with artificial noise (AN) transmission, where a more general system framework of HWSN only includes a macrocell and a femtocell. For the sake of implementing security enhancement and green communications, the joint optimization problem of the secure beamforming vector at the macrocell and femtocell, the AN vector, and the power splitting ratio is modeled to maximize the minimal secrecy capacity of the wiretapped macrocell sensor nodes (M-SNs) while considering the fairness among multiple M-SNs. To reduce the performance loss of the rank relaxation from the SDR technique while solving the non-convex max–min program, we apply successive convex approximation (SCA) technique, first-order Taylor series expansion and sequential parametric convex approximation (SPCA) approach to transform the max–min program to a second order cone programming (SOCP) problem to iterate to a near-optimal solution. In addition, we propose a novel SCA-SPCA-based iterative algorithm while its convergence property is proved. The simulation shows that our SCA-SPCA-based method outperforms the conventional methods.

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“…Full-duplex NOMA HetNet [137] Full-duplex cellular HetNet [138,139] TDD NOMA multi-antenna HetNet [140] NOMA H-CRAN NOMA H-CRAN [141,142] NOMA relay HetNet [143] EH HetNet NOMA HetNet with EH [147,148] D2D HetNet with EH [149,150] EH based Het-IoT [151] SWIPT based HetHet [152][153][154][155] MEC HetNet MEC HetNet [144] MEC NOMA HetNet [145] Self-organizing MEC HetNet [146] others VLC/RF HetNet [156] Cognitive HetNet [157] D2D HetNet [158] NOMA HVN [159] NOMA Het-IoT [160] Fig . 12.…”

Section: Full Duplex Hetnetmentioning

confidence: 99%

A Survey on Resource Allocation for 5G Heterogeneous Networks: Current Research, Future Trends and Challenges

Xu¹,

Gui²,

Li³

et al. 2020

Preprint

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In the fifth-generation (5G) wireless communications system, various service requirements under different communication environments are expected to be satisfied. As a new evolution network structure, heterogeneous networks (HetNet) have been fully studied in recent years. In contrast to conventional homogeneous networks, the key feature of HetNet is to increase the opportunity of spatial resource reuse and improve the quality of service of users by allowing small cells to cooperate in macrocell networks. However, since the mutual interference among different users and the limited resource are existing in HetNets, efficient resource allocation (RA) schemes are very important to reduce the interference and achieve spectrum sharing. In this paper, we provide a comprehensive survey on RA in HetNets for 5G communications. Specifically, we first introduce the definition and different network scenarios of HetNet. Second, RA models are discussed. Then, we present classification to analyze current RA schemes in the existing references. Finally, some challenging open issues and future research trends are addressed in this field. We also provide two effective approaches for the sixth-generation (6G) communications to solve the RA problems of future HetNets, namely, a learning-based approach and a control theory-based approach. This paper provides important information on HetNets, which can be used to guide the development of more efficient RA schemes in this area.

show abstract

“…Full-duplex NOMA HetNet [137] Full-duplex cellular HetNet [138,139] TDD NOMA multi-antenna HetNet [140] NOMA H-CRAN NOMA H-CRAN [141,142] NOMA relay HetNet [143] EH HetNet NOMA HetNet with EH [147,148] D2D HetNet with EH [149,150] EH based Het-IoT [151] SWIPT based HetHet [152][153][154][155] MEC HetNet MEC HetNet [144] MEC NOMA HetNet [145] Self-organizing MEC HetNet [146] others VLC/RF HetNet [156] Cognitive HetNet [157] D2D HetNet [158] NOMA HVN [159] NOMA Het-IoT [160] Fig . 12.…”

Section: Full Duplex Hetnetmentioning

confidence: 99%

A Survey on Resource Allocation for 5G Heterogeneous Networks: Current Research, Future Trends and Challenges

Xu¹,

Gui²,

Li³

et al. 2020

Preprint

5

0

View full text Add to dashboard Cite

In the fifth-generation (5G) wireless communications system, various service requirements under different communication environments are expected to be satisfied. As a new evolution network structure, heterogeneous networks (HetNet) have been fully studied in recent years. In contrast to conventional homogeneous networks, the key feature of HetNet is to increase the opportunity of spatial resource reuse and improve the quality of service of users by allowing small cells to cooperate in macrocell networks. However, since the mutual interference among different users and the limited resource are existing in HetNets, efficient resource allocation (RA) schemes are very important to reduce the interference and achieve spectrum sharing. In this paper, we provide a comprehensive survey on RA in HetNets for 5G communications. Specifically, we first introduce the definition and different network scenarios of HetNet. Second, RA models are discussed. Then, we present classification to analyze current RA schemes in the existing references. Finally, some challenging open issues and future research trends are addressed in this field. We also provide two effective approaches for the sixth-generation (6G) communications to solve the RA problems of future HetNets, namely, a learning-based approach and a control theory-based approach. This paper provides important information on HetNets, which can be used to guide the development of more efficient RA schemes in this area.

show abstract

Energy Efficiency Optimization for CoMP-SWIPT Heterogeneous Networks

Cited by 55 publications

References 48 publications

AN-Aided Secure Beamforming in Power-Splitting-Enabled SWIPT MIMO Heterogeneous Wireless Sensor Networks

AN-Aided Secure Beamforming in Power-Splitting-Enabled SWIPT MIMO Heterogeneous Wireless Sensor Networks

A Survey on Resource Allocation for 5G Heterogeneous Networks: Current Research, Future Trends and Challenges

A Survey on Resource Allocation for 5G Heterogeneous Networks: Current Research, Future Trends and Challenges

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