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: "degrees of freedom of full duplex multiantenna cellular networks"
  Abstract: We study the degrees of freedom (DoF) of cellular networks in which a full duplex (FD) base station (BS) equipped with multiple transmit and receive antennas communicates with multiple mobile users. We consider two different scenarios. In the first scenario, we study the case when half duplex (HD) users, partitioned to either the uplink (UL) set or the downlink (DL) set, simultaneously communicate with the FD BS. In the second scenario, we study the case when FD users simultaneously communicate UL and DL data with the FD BS. For both network models, we completely characterize the sum DoFs by developing achievable schemes and obtaining matching upper bounds. The key idea of the proposed scheme is to carefully allocate UL and DL information streams using interference alignment and beamforming techniques. As a consequence of the result, we show that the DoF can approach the two-fold gain over the HD systems when the number of users becomes large enough as compared to the number of antennas at the BS.

Connected through hyperedge HE-1 (induced by source paper "relay aided mimo cellular networks using opposite directional interference alignment"):
  with members:
    - "interference alignment for multicell multiuser mimo uplink channels"
    - "cellular interference alignment"
    - "degrees of freedom of mimo cellular networks decomposition and linear beamforming design"
    - "on the degrees of freedom achievable through interference alignment in a mimo interference channel"
    - "downlink interference alignment"
    - "degrees of freedom of the k user m times n mimo interference channel"

Connected through hyperedge HE-2 (induced by source paper "large antenna analysis of multi cell full duplex networks"):
  with members:
    - "5g cellular key enabling technologies and research challenges"
    - "opportunistic scheduling for full duplex uplink downlink networks"
    - "leveraging one hop information in massive mimo full duplex wireless systems"
    - "passive self interference suppression for full duplex infrastructure nodes"
    - "massive mimo for next generation wireless systems"
    - "design and characterization of a full duplex multiantenna system for wifi networks"
    - "simultaneous transmission and reception algorithm design and system level performance"
    - "scaling up mimo opportunities and challenges with very large arrays"

Connected through hyperedge HE-3 (induced by source paper "degrees of freedom of full duplex cellular networks with reconfigurable antennas at base station"):
  with members:
    - "linear degrees of freedom of mimo broadcast channels with reconfigurable antennas in the absence of csit"
    - "prototyping real time full duplex radios"
    - "degrees of freedom of uplink downlink multiantenna cellular networks"
    - "the feasibility of interference alignment for reverse tdd systems in mimo cellular networks"
    - "in band full duplex wireless challenges and opportunities"
    - "diophantine approach to blind interference alignment of homogeneous k user 2x1 miso broadcast channels"
    - "experiment driven characterization of full duplex wireless systems"
    - "downlink interference alignment"

Connected through hyperedge HE-4 (induced by source paper "fundamental limits of spectrum sharing full duplex multicell networks"):
  with members:
    - "on the degrees of freedom of full duplex cellular networks"
    - "degrees of freedom of uplink downlink multiantenna cellular networks"
    - "degrees of freedom of mimo cellular networks decomposition and linear beamforming design"
    - "degrees of freedom of interference channels with comp transmission and reception"
    - "degrees of freedom region for an interference network with general message demands"
    - "downlink interference alignment"
    - "ergodic interference alignment"
    - "degrees of freedom of the k user m times n mimo interference channel"

Connected through hyperedge HE-5 (induced by source paper "degrees of freedom of uplink downlink multiantenna cellular networks"):
  with members:
    - "real interference alignment exploiting the potential of single antenna systems"
    - "cellular interference alignment"
    - "genie tree and degrees of freedom of the symmetric mimo interfering broadcast channel"
    - "hetnets and massive mimo modeling potential gains and performance analysis"
    - "on the feasibility of linear interference alignment for mimo interference broadcast channels with constant coefficients"
    - "genie chain and degrees of freedom of symmetric mimo interference broadcast channels"
    - "degrees of freedom of mimo cellular networks decomposition and linear beamforming design"
    - "regularized zero forcing interference alignment for the two cell mimo interfering broadcast channel"

Connected through hyperedge HE-6 (induced by source paper "interference alignment for multicell multiuser mimo uplink channels"):
  with members:
    - "cellular interference alignment omni directional antennas and asymmetric configurations"
    - "real interference alignment exploiting the potential of single antenna systems"
    - "degrees of freedom of uplink downlink multiantenna cellular networks"
    - "cellular interference alignment"
    - "on the feasibility of linear interference alignment for mimo interference broadcast channels with constant coefficients"
    - "genie chain and degrees of freedom of symmetric mimo interference broadcast channels"
    - "degrees of freedom of mimo cellular networks decomposition and linear beamforming design"
    - "interference alignment for partially connected mimo cellular networks"

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)