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 "non orthogonal multiple access for mobile vlc networks with random receiver orientation"):
  Abstract: Visible light communications (VLC) is an emerging technology with a promise of viable solution to spectrum crunch problem in conventional radio frequency bands. In this work, we consider a VLC system where mobile users are randomly changing their horizontal location and vertical orientation. The non-orthogonal multiple access (NOMA) strategy with full channel state information (CSI) feedback is adopted to serve these users with improved spectral efficiency. To reduce computational burden and overhead due to tracking and feeding back the full CSI, we consider various limited feedback schemes where users are ordered based on their distance and vertical angle information instead of full CSI. Comprehensive numerical results verify the superiority of NOMA as compared to orthogonal multiple access while compensating the loss in user rates due to the random receiver orientation. In addition, vertical angle information based limited feedback schemes are observed to achieve satisfactory performance as compared to full CSI feedback, while conventional distance feedback scheme shows poor performance in this realistic VLC scenario.

Includes members:
  Member "noma for vlc downlink transmission with random receiver orientation":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "low resolution limited feedback noma for mmwave communications")
  Member "modeling the random orientation of mobile devices measurement analysis and lifi use case":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "hybrid lifi and wifi networks a survey")
  Member "a software defined multi element vlc architecture":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "noma for vlc downlink transmission with random receiver orientation")
  Member "multi element vlc networks led assignment power control and optimum combining":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "noma for vlc downlink transmission with random receiver orientation")
  Member "power domain non orthogonal multiple access noma in 5g systems potentials and challenges":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "mimo noma networks relying on reconfigurable intelligent surface a signal cancellation based design")
  Member "impact of random receiver orientation on visible light communications channel":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "noma for vlc downlink transmission with random receiver orientation")
  Member "non orthogonal multiple access for visible light communications":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "optical rate splitting multiple access for visible light communications")
  Member "non orthogonal multiple access in multi cell networks theory performance and practical challenges":
    also connected through other hyperedges:
      - Hyperedge HE-8 (induced by source paper "interplay between noma and other emerging technologies a survey")

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)