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 directionality on interference mitigation in full duplex cellular network"
  Abstract: In this paper, we consider two fundamental full-duplex (FD) architectures, two-node and three-node, in the context of cellular networks where the terminals employ directional antennas. The simultaneous transmission and reception of data in non-orthogonal channels makes FD radio a potential solution for the currently limited spectrum. However, its implementation generates high levels of interference either in the form of loopback interference (LI) from the output to the input antenna of a transceiver or in the form of co-channel interference in large-scale multicell networks due to the large number of active links. Using a stochastic geometry model, we investigate how directional antennas can control and mitigate the co-channel interference. Furthermore, we provide a model which characterizes the way directional antennas manage the LI in order to passively suppress it. Our results show that both architectures can benefit significantly by the employment of directional antennas. Finally, we consider the case where both architectures are employed in the network and derive the optimal values for the density fraction of each architecture which maximize the success probability and the network throughput.

Connected through hyperedge HE-1 (induced by source paper "flexible design for alpha duplex communications in multi tier cellular networks"):
  with members:
    - "can uplink transmissions survive in full duplex cellular environments"
    - "modeling cellular networks in fading environments with dominant specular components"
    - "throughput and coverage for a mixed full and half duplex small cell network"
    - "harvesting full duplex rate gains in cellular networks with half duplex user terminals"
    - "in band full duplex communications for cellular networks with partial uplink downlink overlap"
    - "limits on the capacity of in band full duplex communication in uplink cellular networks"
    - "full duplex radio for uplink downlink transmission with spatial randomness"
    - "interference management with partial uplink downlink spectrum overlap"

Connected through hyperedge HE-2 (induced by source paper "in band alpha duplex scheme for cellular networks a stochastic geometry approach"):
  with members:
    - "modeling and analysis of cellular networks using stochastic geometry a tutorial"
    - "can uplink transmissions survive in full duplex cellular environments"
    - "modeling cellular networks in fading environments with dominant specular components"
    - "in band full duplex communications for cellular networks with partial uplink downlink overlap"
    - "prototyping real time full duplex radios"
    - "full duplex radio for uplink downlink transmission with spatial randomness"
    - "full duplex mimo small cell networks performance analysis"
    - "throughput analysis for full duplex wireless networks with imperfect self interference cancellation"

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)