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: "wireless charger networking for mobile devices fundamentals standards and applications"
  Abstract: Wireless charging is a technique of transmitting power through an air gap to an electrical device for the purpose of energy replenishment. Recently, the wireless charging technology has been significantly advanced in terms of efficiency and functionality. This article first presents an overview and fundamentals of wireless charging. We then provide the review of standards, i.e., Qi and Alliance for Wireless Power (A4WP), and highlight on their communication protocols. Next, we propose a novel concept of wireless charger networking which allows chargers to be connected to facilitate information collection and control. We demonstrate the application of the wireless charger network in user-charger assignment, which clearly shows the benefit in terms of reduced cost for users to identify the best chargers to replenish energy for their mobile devices.

Connected through hyperedge HE-1 (induced by source paper "earning maximization with quality of charging service guarantee for iot devices"):
  with members:
    - "fair scheduling in resonant beam charging for iot devices"
    - "power control in uav supported ultra dense networks communications caching and energy transfer"
    - "wireless charging technologies fundamentals standards and network applications"
    - "cognitive internet of things a new paradigm beyond connection"
    - "internet of things iot a vision architectural elements and future directions"

Connected through hyperedge HE-2 (induced by source paper "fair scheduling in resonant beam charging for iot devices"):
  with members:
    - "cognitive internet of things a new paradigm beyond connection"

Connected through hyperedge HE-3 (induced by source paper "optimal resonant beam charging for electronic vehicles in internet of intelligent vehicles"):
  with members:
    - "adaptive resonant beam charging for intelligent wireless power transfer"
    - "flexible energy management protocol for cooperative ev to ev charging"

Connected through hyperedge HE-4 (induced by source paper "wireless powered device to device communications with ambient backscattering performance modeling and analysis"):
  with members:
    - "analysis of wireless powered device to device communications with ambient backscattering"
    - "wireless charging technologies fundamentals standards and network applications"
    - "wirelessly powered backscatter communication networks modeling coverage and capacity"
    - "downlink coverage probability in a cellular network with ginibre deployed base stations and nakagami m fading channels"
    - "resource allocation in wireless networks with rf energy harvesting and transfer"
    - "wireless powered communication opportunities and challenges"
    - "performance analysis of ambient rf energy harvesting with repulsive point process modeling"
    - "hierarchical cooperation for operator controlled device to device communications a layered coalitional game approach"

Connected through hyperedge HE-5 (induced by source paper "analysis of wireless powered device to device communications with ambient backscattering"):
  with members:
    - "wireless charging technologies fundamentals standards and network applications"
    - "resource allocation in wireless networks with rf energy harvesting and transfer"
    - "hierarchical cooperation for operator controlled device to device communications a layered coalitional game approach"
    - "wireless networks with rf energy harvesting a contemporary survey"
    - "performance analysis of ambient rf energy harvesting a stochastic geometry approach"
    - "dynamic spectrum access in cognitive radio networks with rf energy harvesting"
    - "throughput maximization in wireless powered communication networks"

Connected through hyperedge HE-6 (induced by source paper "wireless charging technologies fundamentals standards and network applications"):
  with members:
    - "secrecy wireless information and power transfer in fading wiretap channel"
    - "resource allocation in wireless networks with rf energy harvesting and transfer"
    - "wireless powered communication opportunities and challenges"
    - "performance analysis of ambient rf energy harvesting with repulsive point process modeling"
    - "distributed power splitting for swipt in relay interference channels using game theory"
    - "green wireless power transfer networks"
    - "energy harvesting wireless communications a review of recent advances"
    - "joint wireless information and power transfer for an autonomous multiple antenna relay system"

Connected through hyperedge HE-7 (induced by source paper "resource allocation in wireless powered relay networks a bargaining game approach"):
  with members:
    - "joint power splitting and antenna selection in energy harvesting relay channels"
    - "noncoherent relaying in energy harvesting communication systems"
    - "joint resource optimization for multicell networks with wireless energy harvesting relays"
    - "wireless networks with rf energy harvesting a contemporary survey"
    - "full duplex wireless powered relay with self energy recycling"
    - "power allocation strategies in energy harvesting wireless cooperative networks"
    - "simultaneous information and energy transfer in large scale networks with without relaying"
    - "wireless information and power transfer energy efficiency optimization in ofdma systems"

Connected through hyperedge HE-8 (induced by source paper "performance analysis of ambient rf energy harvesting with repulsive point process modeling"):
  with members:
    - "performance analysis of simultaneous wireless information and power transfer with ambient rf energy harvesting"
    - "resource allocation in wireless networks with rf energy harvesting and transfer"
    - "the ginibre point process as a model for wireless networks with repulsion"
    - "wireless networks with rf energy harvesting a contemporary survey"
    - "performance analysis of ambient rf energy harvesting a stochastic geometry approach"
    - "dynamic spectrum access in cognitive radio networks with rf energy harvesting"
    - "simultaneous information and energy transfer in large scale networks with without relaying"
    - "a layered coalitional game framework of wireless relay network"

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.NI(Networking and Internet Architecture)