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: "power talk how to modulate data over a dc micro grid bus using power electronics"
  Abstract: We introduce a novel communication strategy for DC Micro Grids (MGs), termed power talk, in which the devices communicate by modulating the power levels in the DC bus. The information is transmitted by varying the parameters that the MG units use to control the level of the common bus voltage, while it is received by processing the bus measurements that units perform. This communication is challenged by the fact that the voltage level is subject to random disturbances, as the state of the MG changes with random load variations. We develop a corresponding communication model and address the random voltage fluctuations by using coding strategies that transform the MG into some well-known communication channels. The performance analysis shows that it is possible to mitigate the random voltage level variations and communicate reliably over the MG bus.

Connected through hyperedge HE-1 (induced by source paper "software defined microgrid control for resilience against cyber attacks"):
  with members:
    - "multiuser communication through power talk in dc microgrids"
    - "anti jamming strategy for distributed microgrid control based on power talk communication"
    - "on the impact of wireless jamming on the distributed secondary microgrid control"

Connected through hyperedge HE-2 (induced by source paper "making the grid truly smart autonomous system identification in modemless dc microgrids"):
  with members:
    - "transient stability guarantees for ad hoc dc microgrids"
    - "multiuser communication through power talk in dc microgrids"
    - "power talk for multibus dc microgrids creating and optimizing communication channels"
    - "modemless multiple access communications over powerlines for dc microgrid control"
    - "multi agent distributed optimization via inexact consensus admm"
    - "for the grid and through the grid the role of power line communications in the smart grid"

Connected through hyperedge HE-3 (induced by source paper "modemless multiple access communications over powerlines for dc microgrid control"):
  with members:
    - "multiuser communication through power talk in dc microgrids"
    - "power talk for multibus dc microgrids creating and optimizing communication channels"
    - "power talk in dc micro grids constellation design and error probability performance"
    - "for the grid and through the grid the role of power line communications in the smart grid"

Connected through hyperedge HE-4 (induced by source paper "anti jamming strategy for distributed microgrid control based on power talk communication"):
  with members:
    - "multiuser communication through power talk in dc microgrids"
    - "on the impact of wireless jamming on the distributed secondary microgrid control"
    - "power talk in dc micro grids constellation design and error probability performance"

Connected through hyperedge HE-5 (induced by source paper "power talk for multibus dc microgrids creating and optimizing communication channels"):
  with members:
    - "multiuser communication through power talk in dc microgrids"
    - "power talk in dc micro grids constellation design and error probability performance"
    - "for the grid and through the grid the role of power line communications in the smart grid"

Connected through hyperedge HE-6 (induced by source paper "secure and robust authentication for dc microgrids based on power talk communication"):
  with members:
    - "multiuser communication through power talk in dc microgrids"
    - "on the impact of wireless jamming on the distributed secondary microgrid control"
    - "power talk in dc micro grids constellation design and error probability performance"

Connected through hyperedge HE-7 (induced by source paper "multiuser communication through power talk in dc microgrids"):
  with members:
    - "power talk in dc micro grids constellation design and error probability performance"
    - "for the grid and through the grid the role of power line communications in the smart grid"

Connected through hyperedge HE-8 (induced by source paper "power talk in dc micro grids constellation design and error probability performance"):
  with members:
    - "multiuser communication through power talk in dc microgrids"

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)