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 "relay aided mimo cellular networks using opposite directional interference alignment"):
  Abstract: In this paper, we first propose interference alignment (IA) scheme for uplink transmission of multiple-input-mulitple-output (MIMO) cellular network with a help of relay which operates in halfduplex mode. The proposed scheme only requires global channel state information (CSI) knowledge at relay and no transmitter beamforming and time extension is required at user equipment (UE), which differs from the conventional IA schemes for cellular network. We derive the feasibility condition of the proposed scheme for the general network configuration and analyze the degrees-of-freedom (DoF) performance of the proposed IA scheme. Extension of proposed scheme for downlink and full-duplex network are further described in this paper. It is also shown that the same advantage as the uplink case can be obtained for downlink case through relay induced interfering multiple access channel (IMAC) and interfering broadcast channel (IBC) duality. Furthermore, full-duplex network is shown to have same advantages with half-duplex cases.

Includes members:
  Member "degrees of freedom of full duplex multiantenna cellular networks":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "large antenna analysis of multi cell full duplex networks")
  Member "interference alignment for multicell multiuser mimo uplink channels":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "simultaneous signal and interference alignment for two cell over the air computation")
  Member "cellular interference alignment":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "degrees of freedom of cache aided wireless cellular networks")
  Member "degrees of freedom of mimo cellular networks decomposition and linear beamforming design":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "role of interference alignment in wireless cellular network optimization")
  Member "on the degrees of freedom achievable through interference alignment in a mimo interference channel":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "centralized and decentralized cache aided interference management in heterogeneous parallel channels")
  Member "downlink interference alignment":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "optimality of treating inter cell interference as noise under finite precision csit")
  Member "degrees of freedom of the k user m times n mimo interference channel":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "noma an information theoretic perspective")

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)