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: "an analytical framework for device to device communication in cellular networks"
  Abstract: This paper presents a framework that enables characterizing analytically the spectral efficiency achievable by device-to-device (D2D) communication integrated with a cellular network. This framework is based on a stochastic geometry formulation with a novel approach to the modeling of interference and with the added possibility of incorporating exclusion regions to protect cellular receivers from excessive interference from active D2D transmitters. To illustrate the potential of the framework, a number of examples are provided. These examples confirm the potential of D2D communication in situations of strong traffic locality, as well as the effectiveness of properly sized exclusion regions.

Connected through hyperedge HE-1 (induced by source paper "uav to uav communications in cellular networks"):
  with members:
    - "cellular connectivity for uavs network modeling performance analysis and design guidelines"
    - "cellular uav to uav communications"
    - "understanding uav cellular communications from existing networks to massive mimo"
    - "tutorial on uav a blue sky view on wireless communication"
    - "cellular connected uav uplink association power control and interference coordination"
    - "a telecom perspective on the internet of drones from lte advanced to 5g"
    - "ultra reliable uav communication using altitude and cooperation diversity"
    - "downlink performance of uplink fractional power control in 5g massive mimo systems"

Connected through hyperedge HE-2 (induced by source paper "energy efficient power and channel allocation in underlay device to multi device communications"):
  with members:
    - "system level modeling and optimization of the energy efficiency in cellular networks a stochastic geometry framework"
    - "optimal resource allocation in multicast device to device communications underlaying lte networks"
    - "radio resource allocation for device to device underlay communication using hypergraph theory"
    - "a tractable framework for the analysis of dense heterogeneous cellular networks"
    - "energy efficient power control a look at 5g wireless technologies"
    - "gaussian approximation for the downlink interference in heterogeneous cellular networks"
    - "device to device millimeter wave communications interference coverage rate and finite topologies"
    - "modeling and performance analysis of clustered device to device networks"

Connected through hyperedge HE-3 (induced by source paper "d2d multicast in underlay cellular networks with exclusion zones"):
  with members:
    - "optimal resource allocation in multicast device to device communications underlaying lte networks"
    - "a stochastic geometric analysis of device to device communications operating over generalized fading channels"
    - "poisson hole process theory and applications to wireless networks"
    - "modeling cellular networks with full duplex d2d communication a stochastic geometry approach"
    - "operational region of d2d communications for enhancing cellular network performance"
    - "device to device communication underlaying a finite cellular network region"
    - "spectrum sharing for device to device communication in cellular networks"
    - "what will 5g be"

Connected through hyperedge HE-4 (induced by source paper "fog massive mimo a user centric seamless hot spot architecture"):
  with members:
    - "a novel alternative to cloud ran for throughput densification coded pilots and fast user packet scheduling at remote radio heads"
    - "realizing the tactile internet haptic communications over next generation 5g cellular networks"
    - "modeling and analysis of cellular networks using stochastic geometry a tutorial"
    - "ergodic spectral efficiency in mimo cellular networks"
    - "unique coverage in boolean models"
    - "system level performance evaluation of lte v2x network"
    - "an uplink downlink duality for cloud radio access network"
    - "rrh based massive mimo with on the fly pilot contamination control"

Connected through hyperedge HE-5 (induced by source paper "modeling and analysis of d2d millimeter wave networks with poisson cluster processes"):
  with members:
    - "nonorthogonal multiple access in large scale underlay cognitive radio networks"
    - "wireless device to device caching networks basic principles and system performance"
    - "cellular base station assisted device to device communications in tv white space"
    - "modeling and performance analysis of clustered device to device networks"
    - "cooperative non orthogonal multiple access with simultaneous wireless information and power transfer"
    - "d2d enhanced heterogeneous cellular networks with dynamic tdd"
    - "28 ghz and 73 ghz millimeter wave indoor propagation measurements and path loss models"
    - "spectrum sharing for device to device communication in cellular networks"

Connected through hyperedge HE-6 (induced by source paper "unified analysis and optimization of d2d communications in cellular networks over fading channels"):
  with members:
    - "3gpp inspired hetnet model using poisson cluster process sum product functionals and downlink coverage"
    - "a stochastic geometric analysis of device to device communications operating over generalized fading channels"
    - "coverage analysis in downlink poisson cellular network with kappa mu shadowed fading"
    - "unified stochastic geometry modeling and analysis of cellular networks in los nlos and shadowed fading"
    - "modeling and performance analysis of clustered device to device networks"
    - "distributed sir aware opportunistic access control for d2d underlaid cellular networks"
    - "power control for d2d underlaid cellular networks modeling algorithms and analysis"

Connected through hyperedge HE-7 (induced by source paper "ergodic spectral efficiency in mimo cellular networks"):
  with members:
    - "modeling and analysis of cellular networks using stochastic geometry a tutorial"
    - "enriched k tier hetnet model to enable the analysis of user centric small cell deployments"
    - "scaling laws for ergodic spectral efficiency in mimo poisson networks"
    - "wireless network signals with moderately correlated shadowing still appear poisson"
    - "gaussian approximation for the downlink interference in heterogeneous cellular networks"
    - "analytical tractability of hexagonal network model with random user location"
    - "asymptotics and approximation of the sir distribution in general cellular networks"
    - "success probability and area spectral efficiency in multiuser mimo hetnets"

Connected through hyperedge HE-8 (induced by source paper "cross mode interference characterization in cellular networks with voronoi guard regions"):
  with members:
    - "user point processes in cellular networks"
    - "the intensity matching approach a tractable stochastic geometry approximation to system level analysis of cellular networks"
    - "poisson hole process theory and applications to wireless networks"
    - "modeling cellular networks with full duplex d2d communication a stochastic geometry approach"
    - "decentralized opportunistic access for d2d underlaid cellular networks"
    - "throughput analysis for full duplex wireless networks with imperfect self interference cancellation"
    - "operational region of d2d communications for enhancing cellular network performance"
    - "on stochastic geometry modeling of cellular uplink transmission with truncated channel inversion power control"

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)