human: Given a node-centered hypergraph: <hypergraph>, where nodes represent papers and hyperedges represent sets of papers co-cited by a source paper.

Details of the hypergraph:
Center node: "wirelessly powered backscatter communication networks modeling coverage and capacity"
  Abstract: Future Internet-of-Things (IoT) will connect billions of small computing devices embedded in the environment and support their device-to-device (D2D) communication. Powering this massive number of embedded devices is a key challenge of designing IoT since batteries increase the devices' form factors and battery recharging/replacement is difficult. To tackle this challenge, we propose a novel network architecture that enables D2D communication between passive nodes by integrating wireless power transfer and backscatter communication, which is called a wirelessly powered backscatter communication (WP-BackCom) network. In the network, standalone power beacons (PBs) are deployed for wirelessly powering nodes by beaming unmodulated carrier signals to targeted nodes. Provisioned with a backscatter antenna, a node transmits data to an intended receiver by modulating and reflecting a fraction of a carrier signal. Such transmission by backscatter consumes orders-of-magnitude less power than a traditional radio. Thereby, the dense deployment of low-complexity PBs with high transmission power can power a large-scale IoT. In this paper, a WP-BackCom network is modeled as a random Poisson cluster process in the horizontal plane where PBs are Poisson distributed and active ad-hoc pairs of backscatter communication nodes with fixed separation distances form random clusters centered at PBs. The backscatter nodes can harvest energy from and backscatter carrier signals transmitted by PBs. Furthermore, the transmission power of each node depends on the distance from the associated PB. Applying stochastic geometry, the network coverage probability and transmission capacity are derived and optimized as functions of backscatter parameters, including backscatter duty cycle and reflection coefficient, as well as the PB density. The effects of the parameters on network performance are characterized.

Connected through hyperedge HE-1 (induced by source paper "clustered millimeter wave networks with non orthogonal multiple access"):
  with members:
    - "cache enabled hetnets with millimeter wave small cells"
    - "user association and resource allocation in unified noma enabled heterogeneous ultra dense networks"
    - "exploiting multiple access in clustered millimeter wave networks noma or oma"
    - "modeling and analysis of d2d millimeter wave networks with poisson cluster processes"
    - "optimal user scheduling and power allocation for millimeter wave noma systems"
    - "modeling and analyzing millimeter wave cellular systems"
    - "coverage analysis for millimeter wave networks the impact of directional antenna arrays"
    - "non orthogonal multiple access in large scale heterogeneous networks"

Connected through hyperedge HE-2 (induced by source paper "joint energy and sinr coverage in spatially clustered rf powered iot network"):
  with members:
    - "optimization of energy constrained wireless powered communication networks with heterogeneous nodes"
    - "3gpp inspired hetnet model using poisson cluster process sum product functionals and downlink coverage"
    - "poisson cluster process bridging the gap between ppp and 3gpp hetnet models"
    - "joint uplink and downlink coverage analysis of cellular based rf powered iot network"
    - "non orthogonal multiple access schemes in wireless powered communication networks"
    - "enriched k tier hetnet model to enable the analysis of user centric small cell deployments"
    - "poisson cluster process based analysis of hetnets with correlated user and base station locations"
    - "on optimal policies in full duplex wireless powered communication networks"

Connected through hyperedge HE-3 (induced by source paper "reusing wireless power transfer for backscatter assisted relaying in wpcns"):
  with members:
    - "backscatter assisted relaying in wireless powered communications network"
    - "deep reinforcement learning for online computation offloading in wireless powered mobile edge computing networks"
    - "joint tx power allocation and rx power splitting for swipt system with multiple nonlinear energy harvesting circuits"
    - "multi antenna enabled cluster based cooperation in wireless powered communication networks"
    - "distributed scheduling in wireless powered communication network protocol design and performance analysis"
    - "ambient backscatter communications a contemporary survey"
    - "user cooperation for enhanced throughput fairness in wireless powered communication networks"
    - "distributed charging control in broadband wireless power transfer networks"

Connected through hyperedge HE-4 (induced by source paper "coverage probability analysis under clustered ambient backscatter nodes"):
  with members:
    - "throughput maximization for ambient backscatter communication a reinforcement learning approach"
    - "cooperative ambient backscatter communications for green internet of things"
    - "traffic aware backscatter communications in wireless powered heterogeneous networks"
    - "3gpp inspired hetnet model using poisson cluster process sum product functionals and downlink coverage"
    - "wirelessly powered backscatter communications waveform design and snr energy tradeoff"
    - "backscatter multiplicative multiple access systems fundamental limits and practical design"
    - "backscatter communications for wireless powered sensor networks with collision resolution"
    - "ambient backscatter communications a contemporary survey"

Connected through hyperedge HE-5 (induced by source paper "performance analysis of clustered lora networks"):
  with members:
    - "deep learning in physical layer communications"
    - "low power wide area networks for sustainable iot"
    - "low power wide area network analysis can lora scale"
    - "mitigating inter network interference in lora networks"
    - "enhancing the physical layer security of non orthogonal multiple access in large scale networks"
    - "modeling and performance analysis of clustered device to device networks"
    - "long range communications in unlicensed bands the rising stars in the iot and smart city scenarios"
    - "on the performance of non orthogonal multiple access in 5g systems with randomly deployed users"

Connected through hyperedge HE-6 (induced by source paper "energy efficient resource allocation for wirelessly powered backscatter communications"):
  with members:
    - "multiuser wirelessly powered backscatter communications nonlinearity waveform design and sinr energy tradeoff"
    - "riding on the primary a new spectrum sharing paradigm for wireless powered iot devices"
    - "wirelessly powered backscatter communications waveform design and snr energy tradeoff"
    - "wireless powered device to device communications with ambient backscattering performance modeling and analysis"
    - "ambient backscatter communications a contemporary survey"
    - "waveform design for wireless power transfer"
    - "communications and signals design for wireless power transmission"
    - "wireless networks with rf energy harvesting a contemporary survey"

Connected through hyperedge HE-7 (induced by source paper "energy beamforming for wireless information and power transfer in backscatter multiuser networks"):
  with members:
    - "optimization of power transfer efficiency and energy efficiency for wireless powered systems with massive mimo"
    - "beamforming design for max min fair swipt in green cloud ran with wireless fronthaul"
    - "modulation in the air backscatter communication over ambient ofdm carrier"
    - "throughput optimization for massive mimo systems powered by wireless energy transfer"
    - "multi antenna wireless energy transfer for backscatter communication systems"
    - "mimo broadcasting for simultaneous wireless information and power transfer"

Connected through hyperedge HE-8 (induced by source paper "performance characterisation of relaying using backscatter devices"):
  with members:
    - "ambient backscatter systems exact average bit error rate under fading channels"
    - "fm backscatter enabling connected cities and smart fabrics"
    - "modulation in the air backscatter communication over ambient ofdm carrier"
    - "backscatter communications for the internet of things a stochastic geometry approach"
    - "semi coherent detection and performance analysis for ambient backscatter system"

Question: Please tell me which class the center node belongs to. The 40 classes are: cs.NA(Numerical Analysis), cs.MM(Multimedia), cs.LO(Logic in Computer Science), cs.CY(Computers and Society), cs.CR(Cryptography and Security), cs.DC(Distributed, Parallel, and Cluster Computing), cs.HC(Human-Computer Interaction), cs.CE(Computational Engineering, Finance, and Science), cs.NI(Networking and Internet Architecture), cs.CC(Computational Complexity), cs.AI(Artificial Intelligence), cs.MA(Multiagent Systems), cs.GL(General Literature), cs.NE(Neural and Evolutionary Computing), cs.SC(Symbolic Computation), cs.AR(Hardware Architecture), cs.CV(Computer Vision and Pattern Recognition), cs.GR(Graphics), cs.ET(Emerging Technologies), cs.SY(Systems and Control), cs.CG(Computational Geometry), cs.OH(Other Computer Science), cs.PL(Programming Languages), cs.SE(Software Engineering), cs.LG(Machine Learning), cs.SD(Sound), cs.SI(Social and Information Networks), cs.RO(Robotics), cs.IT(Information Theory), cs.PF(Performance), cs.CL(Computation and Language), cs.IR(Information Retrieval), cs.MS(Mathematical Software), cs.FL(Formal Languages and Automata Theory), cs.DS(Data Structures and Algorithms), cs.OS(Operating Systems), cs.GT(Computer Science and Game Theory), cs.DB(Databases), cs.DL(Digital Libraries), cs.DM(Discrete Mathematics). Directly output the class name.

gpt: cs.IT(Information Theory)