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: "impact of spatial correlation on the finite snr diversity multiplexing tradeoff"
  Abstract: The impact of spatial correlation on the performance limits of multielement antenna (MEA) channels is analyzed in terms of the diversity-multiplexing tradeoff (DMT) at finite signal-to-noise ratio (SNR) values. A lower bound on the outage probability is first derived. Using this bound accurate finite-SNR estimate of the DMT is then derived. This estimate allows to gain insight on the impact of spatial correlation on the DMT at finite SNR. As expected, the DMT is severely degraded as the spatial correlation increases. Moreover, using asymptotic analysis, we show that our framework encompasses well-known results concerning the asymptotic behavior of the DMT.

Connected through hyperedge HE-1 (induced by source paper "the jacobi mimo channel"):
  with members:
    - "fundamental limits of infinite constellations in mimo fading channels"
    - "finite snr diversity multiplexing tradeoff via asymptotic analysis of large mimo systems"
    - "random matrix model for nakagami hoyt fading"

Connected through hyperedge HE-2 (induced by source paper "secure diversity multiplexing tradeoff of zero forcing transmit scheme at finite snr"):
  with members:
    - "error rates of the maximum likelihood detector for arbitrary constellations convex concave behavior and applications"
    - "secure transmission with multiple antennas ii the mimome wiretap channel"
    - "secure communication in the low snr regime a characterization of the energy secrecy tradeoff"
    - "the secrecy capacity region of the gaussian mimo multi receiver wiretap channel"
    - "on the throughput of secure hybrid arq protocols for gaussian block fading channels"
    - "diversity multiplexing tradeoff for the multiple antenna wire tap channel"
    - "log concavity property of the error probability with application to local bounds for wireless communications"
    - "the secrecy capacity of the mimo wiretap 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)