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: "d2d aware device caching in mmwave cellular networks"
  Abstract: In this paper, we propose a novel device caching policy that facilitates popular content exchange through high-rate device-to-device (D2D) millimeter-wave (mmWave) communication. The proposed policy, which is termed D2D-aware caching (DAC) policy, splits the cacheable content into two content groups and distributes it evenly at the paired devices. By exploiting the high-bandwidth availability and the directionality of mmWaves, we ensure high rates for the D2D transmissions, while mitigating the co-channel interference that limits the D2D-communication potentials in the sub-6 GHz bands. Furthermore, based on a stochastic-geometry approach for the modeling of the location and number of the base stations (BSs) and users (UEs) in the network, we analytically derive the offloading gain that the proposed policy achieves and the distribution of the content retrieval delay for both half- and full-duplex D2D communication. The accuracy of the proposed analytical framework is validated against Monte-Carlo simulations. In addition, for a wide range of content-popularity indicator the results show that the proposed policy achieves better offloading and smaller content-retrieval delays than a widely considered state-of-the-art policy that caches the same content at every UE.

Connected through hyperedge HE-1 (induced by source paper "fog aided device to device networks with opportunistic content delivery"):
  with members:
    - "resource allocation in noma based fog radio access networks"
    - "fog radio access networks mobility management interference mitigation and resource optimization"
    - "spatially correlated content caching for device to device communications"
    - "caching in the sky proactive deployment of cache enabled unmanned aerial vehicles for optimized quality of experience"
    - "fog computing based radio access networks issues and challenges"
    - "the three primary colors of mobile systems"
    - "mobility aware caching in d2d networks"
    - "wireless content caching for small cell and d2d 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)