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: "coverage by pairwise base station cooperation under adaptive geometric policies"
  Abstract: We study a cooperation model where the positions of base stations follow a Poisson point process distribution and where Voronoi cells define the planar areas associated with them. For the service of each user, either one or two base stations are involved. If two, these cooperate by exchange of user data and reduced channel information (channel phase, second neighbour interference) with conferencing over some backhaul link. The total user transmission power is split between them and a common message is encoded, which is coherently transmitted by the stations. The decision for a user to choose service with or without cooperation is directed by a family of geometric policies. The suggested policies further control the shape of coverage contours in favor of cell-edge areas. Analytic expressions based on stochastic geometry are derived for the coverage probability in the network. Their numerical evaluation shows benefits from cooperation, which are enhanced when Dirty Paper Coding is applied to eliminate the second neighbour interference.

Connected through hyperedge HE-1 (induced by source paper "how to group wireless nodes together"):
  with members:
    - "cooperative base station coloring for pair wise multi cell coordination"
    - "a stochastic geometry framework for analyzing pairwise cooperative cellular networks"
    - "analyzing interference from static cellular cooperation using the nearest neighbour model"
    - "spectral efficiency of dynamic coordinated beamforming a stochastic geometry approach"
    - "a tractable model for noncoherent joint transmission base station cooperation"
    - "location aware cross tier coordinated multipoint transmission in two tier cellular networks"
    - "interference coordination random clustering and adaptive limited feedback"
    - "acyclic preference systems in p2p networks"

Connected through hyperedge HE-2 (induced by source paper "a stochastic geometry framework for analyzing pairwise cooperative cellular networks"):
  with members:
    - "studying the sinr process of the typical user in poisson networks by using its factorial moment measures"
    - "a tractable model for noncoherent joint transmission base station cooperation"
    - "interference coordination random clustering and adaptive limited feedback"
    - "modeling and analysis of k tier downlink heterogeneous cellular networks"
    - "multi antenna communication in ad hoc networks achieving mimo gains with simo transmission"
    - "optimized data sharing in multicell mimo with finite backhaul capacity"
    - "a tractable approach to coverage and rate in cellular networks"
    - "the compound multiple access channel with partially cooperating encoders"

Connected through hyperedge HE-3 (induced by source paper "optimal geographic caching in cellular networks"):
  with members:
    - "cache enabled small cell networks modeling and tradeoffs"
    - "exploiting user mobility for wireless content delivery"
    - "a unified approach to the performance analysis of caching systems"
    - "sinr based k coverage probability in cellular networks with arbitrary shadowing"

Connected through hyperedge HE-4 (induced by source paper "on the outage probability of the full duplex interference limited relay channel"):
  with members:
    - "analysis of a cooperative strategy for a large decentralized wireless network"
    - "a tractable model for noncoherent joint transmission base station cooperation"
    - "modeling and analysis of k tier downlink heterogeneous cellular networks"
    - "high sir transmission capacity of wireless networks with general fading and node distribution"
    - "study of gaussian relay channels with correlated noises"
    - "a tractable approach to coverage and rate in cellular networks"
    - "outage probability of general ad hoc networks in the high reliability regime"
    - "an overview of the transmission capacity of wireless networks"

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)