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: "diversity multiplexing tradeoff of double scattering mimo channels"
  Abstract: It is well known that the presence of double scattering degrades the performance of a MIMO channel, in terms of both the multiplexing gain and the diversity gain. In this paper, a closed-form expression of the diversity-multiplexing tradeoff (DMT) of double scattering MIMO channels is obtained. It is shown that, for a channel with nT transmit antennas, nR receive antennas and nS scatterers, the DMT only depends on the ordered version of the triple (nT,nS,nR), for arbitrary nT, nS and nR. The condition under which the double scattering channel has the same DMT as the single scattering channel is also established.

Connected through hyperedge HE-1 (induced by source paper "asymptotic analysis of rzf over double scattering channels with mmse estimation"):
  with members:
    - "massive mimo has unlimited capacity"
    - "multi cell massive mimo performance with double scattering channels"
    - "no downlink pilots are needed in tdd massive mimo"
    - "linear precoding based on polynomial expansion large scale multi cell mimo systems"
    - "a coordinated approach to channel estimation in large scale multiple antenna systems"
    - "achieving massive mimo spectral efficiency with a not so large number of antennas"
    - "random beamforming over quasi static and fading channels a deterministic equivalent approach"
    - "large system analysis of linear precoding in correlated miso broadcast channels under limited feedback"

Connected through hyperedge HE-2 (induced by source paper "outage capacity of rayleigh product channels a free probability approach"):
  with members:
    - "from multi keyholes to measure of correlation and power imbalance in mimo channels outage capacity analysis"
    - "asymptotic capacity and optimal precoding in mimo multi hop relay networks"
    - "living at the edge a large deviations approach to the outage mimo capacity"
    - "asymptotic analysis of double scattering channels"
    - "finite snr diversity multiplexing tradeoff via asymptotic analysis of large mimo systems"
    - "capacity and character expansions moment generating function and other exact results for mimo correlated channels"
    - "approximately universal codes over slow fading channels"

Connected through hyperedge HE-3 (induced by source paper "diversity of linear transceivers in mimo af half duplex relaying channels"):
  with members:
    - "diversity of mmse mimo receivers"
    - "asymptotic performance of linear receivers in mimo fading channels"
    - "diversity multiplexing tradeoff for the mimo static half duplex relay"
    - "towards the optimal amplify and forward cooperative diversity scheme"
    - "optimal space time codes for the mimo amplify and forward cooperative channel"

Connected through hyperedge HE-4 (induced by source paper "performance of general stcs over spatially correlated mimo single keyhole channels"):
  with members:
    - "from multi keyholes to measure of correlation and power imbalance in mimo channels outage capacity analysis"
    - "mimo diversity in the presence of double scattering"

Connected through hyperedge HE-5 (induced by source paper "effect of transmission correlations on the performance of general space time codes in single keyhole channels"):
  with members:
    - "mimo diversity in the presence of double scattering"

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"
    - "a new approach for capacity analysis of large dimensional multi antenna channels"

Connected through hyperedge HE-7 (induced by source paper "asymptotic analysis of double scattering channels"):
  with members:
    - "random beamforming over correlated fading channels"
    - "a deterministic equivalent for the analysis of correlated mimo multiple access channels"
    - "mimo diversity in the presence of double scattering"

Connected through hyperedge HE-8 (induced by source paper "finite snr diversity multiplexing tradeoff via asymptotic analysis of large mimo systems"):
  with members:
    - "diversity multiplexing tradeoff and outage probability in mimo relay channels"
    - "transmit diversity v spatial multiplexing in modern mimo systems"
    - "diversity multiplexing tradeoff in selective fading 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)