human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "potential key technologies for 6g mobile communications"):
  Abstract: 5G wireless standard development culminated between 2017 and 2019. The followed world-wide deployment of 5G networks is expected to bring very high data rate for enhanced mobile broadband, to support ultra reliable and low latency services and to be able to accommodate massive number of connections. Research attention is now shifted to future generation of wireless, for instance, beyond 5G or 6G. Unlike previous papers which discuss in-length about the use cases, deployment scenarios or new network architectures of 6G, this paper focuses on a few potential technologies for 6G wireless communications, all of which represent fundamental breakthrough at the physical layer -- technical hardcore of any new generation of wireless. Some of them, such as holographic radio, terahertz communication, large intelligent surface and orbital angular momentum are of revolutionary nature and many related studies are still at the stage of scientific exploration. Some other technical areas like advanced channel coding/modulation, visible light communication and advanced duplex, while having been studied, may find wide application in 6G.

Includes members:
  Member "6g the next frontier":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "from a human centric perspective what might 6g be")
  Member "enabling large intelligent surfaces with compressive sensing and deep learning":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "intelligent reflecting surface assisted secure wireless communications with multiple transmit and multiple receive antennas")
  Member "beyond massive mimo the potential of data transmission with large intelligent surfaces":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "overhead aware design of reconfigurable intelligent surfaces in smart radio environments")
  Member "low complexity receiver for uplink scma system via expectation propagation":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "multidimensional constellations for uplink scma systems a comparative study")
  Member "the potential of using large antenna arrays on intelligent surfaces":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "large intelligent surface lis based communications new features and system layouts")
  Member "low density lattice codes":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "neural fuzzy extractors a secure way to use artificial neural networks for biometric user authentication")

Question: Please tell me which class the source paper 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)