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: "a new outer bound via interference localization and the degrees of freedom regions of mimo interference networks with no csit"
  Abstract: The two-user multi-input, multi-output (MIMO) interference and cognitive radio channels are studied under the assumption of no channel state information at the transmitter (CSIT) from the degrees of freedom (DoF) region perspective. With $M_i$ and $N_i$ denoting the number of antennas at transmitter $i$ and receiver $i$ respectively, the DoF regions of the MIMO interference channel were recently characterized by Huang et al., Zhu and Guo, and by the authors of this paper for all values of numbers of antennas except when $\min(M_1,N_1) > N_2 > M_2$ (or $\min(M_2,N_2) > N_1 > M_1$). This latter case was solved more recently by Zhu and Guo who provided a tight outer-bound. Here, a simpler and more widely applicable proof of that outer-bound is given based on the idea of interference localization. Using it, the DoF region is also established for the class of MIMO cognitive radio channels when $\min(M_1+M_2,N_1) > N_2 > M_2$ (with the second transmitter cognitive) -- the only class for which the inner and outer bounds previously obtained by the authors were not tight -- thereby completing the DoF region characterization of the general 2-user MIMO cognitive radio channel as well.

Connected through hyperedge HE-1 (induced by source paper "linear degrees of freedom of mimo broadcast channels with reconfigurable antennas in the absence of csit"):
  with members:
    - "fundamental limits of spectrum sharing full duplex multicell networks"
    - "degrees of freedom of full duplex cellular networks with reconfigurable antennas at base station"
    - "real interference alignment exploiting the potential of single antenna systems"
    - "degrees of freedom of uplink downlink multiantenna cellular networks"
    - "on the degrees of freedom of k user siso interference and x channels with delayed csit"
    - "linear degrees of freedom of the mimo x channel with delayed csit"
    - "diophantine approach to blind interference alignment of homogeneous k user 2x1 miso broadcast channels"
    - "completely stale transmitter channel state information is still very useful"

Connected through hyperedge HE-2 (induced by source paper "degrees of freedom and achievable rate of wide band multi cell multiple access channels with no csit"):
  with members:
    - "interference free ofdm rethinking ofdm for interference networks with inter symbol interference"
    - "spectral efficiency of dynamic coordinated beamforming a stochastic geometry approach"
    - "topological interference management through index coding"
    - "a practical cooperative multicell mimo ofdma network based on rank coordination"
    - "opportunistic interference alignment for mimo interfering multiple access channels"
    - "optimal use of current and outdated channel state information degrees of freedom of the miso bc with mixed csit"
    - "not too delayed csit achieves the optimal degrees of freedom"
    - "spatial degrees of freedom of the multicell mimo multiple access channel"

Connected through hyperedge HE-3 (induced by source paper "achievable degrees of freedom of the k user miso broadcast channel with alternating csit via interference creation resurrection"):
  with members:
    - "on the degrees of freedom of the 3 user miso broadcast channel with hybrid csit"
    - "optimal use of current and outdated channel state information degrees of freedom of the miso bc with mixed csit"
    - "minimum csit to achieve maximum degrees of freedom for the miso bc"
    - "completely stale transmitter channel state information is still very useful"
    - "mimo broadcast channels with finite rate feedback"

Connected through hyperedge HE-4 (induced by source paper "degrees of freedom region of the mimo interference channel with output feedback and delayed csit"):
  with members:
    - "optimal use of current and outdated channel state information degrees of freedom of the miso bc with mixed csit"
    - "the degrees of freedom region of the mimo interference channel with shannon feedback"
    - "interference channels with source cooperation"
    - "the degrees of freedom regions of two user and certain three user mimo broadcast channels with delayed csit"
    - "interference channels with destination cooperation"
    - "completely stale transmitter channel state information is still very useful"
    - "retrospective interference alignment"
    - "feedback capacity of the gaussian interference channel to within 2 bits"

Connected through hyperedge HE-5 (induced by source paper "on the degrees of freedom of k user siso interference and x channels with delayed csit"):
  with members:
    - "interference alignment for the mimo interference channel with delayed local csit"
    - "completely stale transmitter channel state information is still very useful"
    - "feedback capacity of the gaussian interference channel to within 2 bits"
    - "on the capacity of the discrete memoryless broadcast channel with feedback"
    - "the degrees of freedom of mimo interference channels without state information at transmitters"
    - "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"

Connected through hyperedge HE-6 (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"
    - "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"
    - "degrees of freedom regions of two user mimo z and full interference channels the benefit of reconfigurable antennas"
    - "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-7 (induced by source paper "the degrees of freedom region of the mimo interference channel with hybrid csit"):
  with members:
    - "the degrees of freedom region of temporally correlated mimo networks with delayed csit"
    - "degrees of freedom of time correlated miso broadcast channel with delayed csit"
    - "degrees of freedom region of the miso broadcast channel with general mixed csit"
    - "optimal use of current and outdated channel state information degrees of freedom of the miso bc with mixed csit"

Connected through hyperedge HE-8 (induced by source paper "the degrees of freedom region of the mimo interference channel with shannon feedback"):
  with members:
    - "ergodic fading interference channels sum capacity and separability"
    - "the degrees of freedom of the 2 hop 2 user interference channel with feedback"
    - "completely stale transmitter channel state information is still very useful"
    - "retrospective interference alignment"
    - "feedback capacity of the gaussian interference channel to within 2 bits"
    - "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"
    - "on degrees of freedom region of mimo networks without csit"

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)