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 approach for capacity analysis of large dimensional multi antenna channels"
  Abstract: This paper adresses the behaviour of the mutual information of correlated MIMO Rayleigh channels when the numbers of transmit and receive antennas converge to +∞ at the same rate. Using a new and simple approach based on Poincare-Nash inequality and on an integration by parts formula, it is rigorously established that the mutual information converges to a Gaussian random variable whose mean and variance are evaluated. These results confirm previous e valuations based on the powerful but non rigorous replica method. It is believed that the tools that a re used in this paper are simple, robust, and of interest for the communications engineering community.

Connected through hyperedge HE-1 (induced by source paper "linear precoding based on polynomial expansion large scale multi cell mimo systems"):
  with members:
    - "massive mimo systems with non ideal hardware energy efficiency estimation and capacity limits"
    - "linear precoding based on polynomial expansion reducing complexity in massive mimo"
    - "scaling up mimo opportunities and challenges with very large arrays"
    - "pareto characterization of the multicell mimo performance region with simple receivers"
    - "joint spatial division and multiplexing"
    - "large system analysis of linear precoding in correlated miso broadcast channels under limited feedback"
    - "asymptotic moments for interference mitigation in correlated fading channels"
    - "pilot contamination and precoding in multi cell tdd systems"

Connected through hyperedge HE-2 (induced by source paper "on the smallest eigenvalue of general correlated gaussian matrices"):
  with members:
    - "linear precoding based on polynomial expansion large scale multi cell mimo systems"
    - "improved subspace estimation for multivariate observations of high dimension the deterministic signals case"

Connected through hyperedge HE-3 (induced by source paper "linear precoding based on polynomial expansion reducing complexity in massive mimo"):
  with members:
    - "linear precoding based on polynomial expansion large scale multi cell mimo systems"
    - "downlink training techniques for fdd massive mimo systems open loop and closed loop training with memory"
    - "low complexity channel estimation in large scale mimo using polynomial expansion"
    - "scaling up mimo opportunities and challenges with very large arrays"
    - "pareto characterization of the multicell mimo performance region with simple receivers"
    - "mimo interference alignment over correlated channels with imperfect csi"

Connected through hyperedge HE-4 (induced by source paper "sinr statistics of correlated mimo linear receivers"):
  with members:
    - "large system analysis of linear precoding in correlated miso broadcast channels under limited feedback"
    - "on the precoder design of flat fading mimo systems equipped with mmse receivers a large system approach"
    - "tails of random matrix diagonal elements the case of the wishart inverse"
    - "a deterministic equivalent for the analysis of correlated mimo multiple access channels"
    - "on the capacity achieving covariance matrix for frequency selective mimo channels using the asymptotic approach"
    - "asymptotic performance of linear receivers in mimo fading channels"
    - "performance of mmse mimo receivers a large n analysis for correlated channels"
    - "ber and outage probability approximations for lmmse detectors on correlated mimo channels"

Connected through hyperedge HE-5 (induced by source paper "a clt on the snr of diagonally loaded mvdr filters"):
  with members:
    - "ber and outage probability approximations for lmmse detectors on correlated mimo channels"
    - "a central limit theorem for the sinr at the lmmse estimator output for large dimensional signals"

Connected through hyperedge HE-6 (induced by source paper "iterative deterministic equivalents for the performance analysis of communication systems"):
  with members:
    - "random beamforming over quasi static and fading channels a deterministic equivalent approach"
    - "asymptotic capacity and optimal precoding in mimo multi hop relay networks"
    - "a deterministic equivalent for the analysis of correlated mimo multiple access channels"
    - "optimal channel training in uplink network mimo systems"
    - "ergodic capacity analysis of amplify and forward mimo dual hop systems"
    - "multi cell mimo downlink with fairness criteria the large system limit"
    - "on the capacity achieving covariance matrix for frequency selective mimo channels using the asymptotic approach"
    - "large n analysis of amplify and forward mimo relay channels with correlated rayleigh fading"

Connected through hyperedge HE-7 (induced by source paper "signal processing in large systems a new paradigm"):
  with members:
    - "random beamforming over quasi static and fading channels a deterministic equivalent approach"
    - "improved subspace estimation for multivariate observations of high dimension the deterministic signals case"
    - "eigen inference for energy estimation of multiple sources"
    - "finite dimensional statistical inference"
    - "random beamforming over correlated fading channels"
    - "a deterministic equivalent for the analysis of correlated mimo multiple access channels"
    - "on the capacity achieving covariance matrix for frequency selective mimo channels using the asymptotic approach"
    - "cooperative spectrum sensing using random matrix theory"

Connected through hyperedge HE-8 (induced by source paper "on the precoder design of flat fading mimo systems equipped with mmse receivers a large system approach"):
  with members:
    - "asymptotic performance of linear receivers in mimo fading channels"
    - "performance of mmse mimo receivers a large n analysis for correlated channels"
    - "ber and outage probability approximations for lmmse detectors on correlated mimo channels"
    - "on the outage capacity of correlated multiple path mimo channels"

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)