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 regions of two user mimo z and full interference channels the benefit of reconfigurable antennas"
  Abstract: We study the degrees of freedom (DoF) regions of two-user multiple-input multiple-output (MIMO) Z and full interference channels in this paper. We assume that the receivers always have perfect channel state information. We first derive the DoF region of Z interference channel with channel state information at transmitter (CSIT). For full interference channel without CSIT, the DoF region has been fully characterized recently and it is shown that the previously known outer bound is not achievable. In this work, we investigate the no-CSIT case further by assuming that the transmitter has the ability of antenna mode switching. We obtain the DoF region as a function of the number of available antenna modes and reveal the incremental gain in DoF that each extra antenna mode can bring. It is shown that in certain cases the reconfigurable antennas can bring extra DoF gains. In these cases, the DoF region is maximized when the number of modes is at least equal to the number of receive antennas at the corresponding receiver, in which case the previously outer bound is achieved. In all cases, we propose systematic constructions of the beamforming and nulling matrices for achieving the DoF region. The constructions bear an interesting space-frequency interpretation.

Connected through hyperedge HE-1 (induced by source paper "a signal space analysis of spatial self interference isolation for full duplex wireless"):
  with members:
    - "passive self interference suppression for full duplex infrastructure nodes"
    - "design and characterization of a full duplex multiantenna system for wifi networks"
    - "experiment driven characterization of full duplex wireless systems"
    - "full duplex bidirectional mimo achievable rates under limited dynamic range"

Connected through hyperedge HE-2 (induced by source paper "spectrum sensing via reconfigurable antennas fundamental limits and potential gains"):
  with members:
    - "censored truncated sequential spectrum sensing for cognitive radio networks"

Connected through hyperedge HE-3 (induced by source paper "the degrees of freedom of mimo networks with full duplex receiver cooperation but no csit"):
  with members:
    - "degrees of freedom region of the mimo interference channel with output feedback and delayed csit"
    - "a new outer bound via interference localization and the degrees of freedom regions of mimo interference networks with no csit"
    - "the degrees of freedom region of the mimo interference channel with shannon feedback"
    - "the degrees of freedom of the 2 hop 2 user interference channel with feedback"
    - "interference channels with destination cooperation"
    - "the degrees of freedom region of the mimo cognitive interference channel with no csit"
    - "the degrees of freedom of mimo interference channels without state information at transmitters"
    - "degrees of freedom of the mimo interference channel with cooperation and cognition"

Connected through hyperedge HE-4 (induced by source paper "degrees of freedom region of the mimo x channel with an arbitrary number of antennas"):
  with members:
    - "subspace alignment chains and the degrees of freedom of the three user mimo interference channel"

Connected through hyperedge HE-5 (induced by source paper "degrees of freedom region for an interference network with general message demands"):
  with members:
    - "real interference alignment exploiting the potential of single antenna systems"
    - "interference alignment for the k user mimo interference channel"
    - "the approximate capacity of the many to one and one to many gaussian interference channels"
    - "aiming perfectly in the dark blind interference alignment through staggered antenna switching"
    - "capacity regions and sum rate capacities of vector gaussian interference channels"
    - "on feasibility of interference alignment in mimo interference networks"
    - "on the degrees of freedom regions of two user mimo z and full interference channels with reconfigurable antennas"
    - "the degrees of freedom of mimo interference channels without state information at transmitters"

Connected through hyperedge HE-6 (induced by source paper "the degrees of freedom of mimo interference channels without state information at transmitters"):
  with members:
    - "exploiting channel correlations simple interference alignment schemes with no csit"
    - "capacity regions and sum rate capacities of vector gaussian interference channels"
    - "ergodic fading one sided interference channels without state information at transmitters"
    - "diversity multiplexing tradeoff of the two user interference channel"
    - "isotropic mimo interference channels without csit the loss of degrees of freedom"
    - "on degrees of freedom region of mimo networks without csit"
    - "the degrees of freedom regions of mimo broadcast interference and cognitive radio channels with no csit"
    - "degrees of freedom of the k user m times n mimo interference channel"

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)