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: "modeling the distribution of the arrival angle based on transmitter antenna pattern"
  Abstract: An angular distribution of received signals has a significant impact on their spectral and correlational properties. Most of angular dispersion models do not consider antenna patterns. The developed procedure for determining the propagation path parameters enables a wide range of assessment of the impact of the propagation environment on the received signal properties. In contrast to the other models, this procedure is based on a geometrical structure, which parameters are defined on the basis of power delay profile or spectrum This modeling method allows also the power radiation pattern (PRP) of the transmitting antenna. The aim of the paper is to present the influence of the transmitter antenna PRP on the scattering propagation paths that arrive at the receiver. This analysis is realized on the basis of simulations studies using the developed procedure. Presented in this paper procedure maps the effects of propagation phenomena that predominate in an azimuth plane.

Connected through hyperedge HE-1 (induced by source paper "evaluation of angular dispersion for various propagation environments in emerging 5g systems"):
  with members:
    - "comparison of angular spread for 6 and 60 ghz based on 3gpp standard"
    - "statistical evaluation of the azimuth and elevation angles seen at the output of the receiving antenna"
    - "local multipath model parameters for generating 5g millimeter wave 3gpp like channel impulse response"

Connected through hyperedge HE-2 (induced by source paper "radio bearing of sources with directional antennas in urban environment"):
  with members:
    - "statistical evaluation of the azimuth and elevation angles seen at the output of the receiving antenna"

Connected through hyperedge HE-3 (induced by source paper "path loss model modification for various gains and directions of antennas"):
  with members:
    - "statistical evaluation of the azimuth and elevation angles seen at the output of the receiving antenna"

Connected through hyperedge HE-4 (induced by source paper "comparison of angular spread for 6 and 60 ghz based on 3gpp standard"):
  with members:
    - "statistical evaluation of the azimuth and elevation angles seen at the output of the receiving antenna"

Connected through hyperedge HE-5 (induced by source paper "statistical evaluation of the azimuth and elevation angles seen at the output of the receiving antenna"):
  with members:
    - "synthesizing omnidirectional antenna patterns received power and path loss from directional antennas for 5g millimeter wave communications"

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)