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: "resource optimization in device to device cellular systems using time frequency hopping"
  Abstract: We develop a flexible and accurate framework for device-to-device (D2D) communication in the context of a conventional cellular network, which allows for time-frequency resources to be either shared or orthogonally partitioned between the two networks. Using stochastic geometry, we provide accurate expressions for SINR distributions and average rates, under an assumption of interference randomization via time and/or frequency hopping, for both dedicated and shared spectrum approaches. We obtain analytical results in closed or semi-closed form in high SNR regime, that allow us to easily explore the impact of key parameters (e.g., the load and hopping probabilities) on the network performance. In particular, unlike other models, the expressions we obtain are tractable, i.e., they can be efficiently optimized without extensive simulation. Using these, we optimize the hopping probabilities for the D2D links, i.e., how often they should request a time or frequency slot. This can be viewed as an optimized lower bound to other more sophisticated scheduling schemes. We also investigate the optimal resource partitions between D2D and cellular networks when they use orthogonal resources.

Connected through hyperedge HE-1 (induced by source paper "interference prediction in wireless networks stochastic geometry meets recursive filtering"):
  with members:
    - "auto correlation and coherence time of interference in poisson networks"
    - "temporal correlation of interference and outage in mobile networks over one dimensional finite regions"
    - "interference functionals in poisson networks"
    - "rethinking the role of interference in wireless networks"
    - "effect of spatial interference correlation on the performance of maximum ratio combining"
    - "dual branch mrc receivers under spatial interference correlation and nakagami fading"
    - "diversity polynomials for the analysis of temporal correlations in wireless networks"
    - "power control for d2d underlaid cellular networks modeling algorithms and analysis"

Connected through hyperedge HE-2 (induced by source paper "on interference dynamics in matern networks"):
  with members:
    - "modeling and analyzing millimeter wave cellular systems"
    - "interference functionals in poisson networks"
    - "cooperative relaying under spatially and temporally correlated interference"
    - "the meta distribution of the sir in poisson bipolar and cellular networks"
    - "the ginibre point process as a model for wireless networks with repulsion"
    - "effect of spatial interference correlation on the performance of maximum ratio combining"
    - "spectrum sharing scheme between cellular users and ad hoc device to device users"
    - "diversity polynomials for the analysis of temporal correlations in wireless networks"

Connected through hyperedge HE-3 (induced by source paper "relay assisted device to device networks connectivity and uberization opportunities"):
  with members:
    - "percolation for d2d networks on street systems"
    - "the influence of canyon shadowing on device to device connectivity in urban scenario"

Connected through hyperedge HE-4 (induced by source paper "mode selection and spectrum partition for d2d inband communications a physical layer security perspective"):
  with members:
    - "on secure wireless communications for service oriented computing"
    - "secrecy optimized resource allocation for device to device communication underlaying heterogeneous networks"
    - "a stochastic geometric analysis of device to device communications operating over generalized fading channels"
    - "mode selection resource allocation and power control for d2d enabled two tier cellular network"
    - "a survey on device to device communication in cellular networks"
    - "spectrum sharing for device to device communication in cellular networks"
    - "principles of physical layer security in multiuser wireless networks a survey"
    - "five disruptive technology directions for 5g"

Connected through hyperedge HE-5 (induced by source paper "when distributed outperforms centralized scheduling in d2d enabled cellular networks"):
  with members:
    - "hybrid centralized distributed resource allocation for device to device communication underlaying cellular networks"
    - "energy efficient resource allocation for device to device underlay communication"
    - "performance analysis of network assisted two hop d2d communications"
    - "distributed resource allocation in device to device enhanced cellular networks"
    - "efficiency resource allocation for device to device underlay communication systems a reverse iterative combinatorial auction based approach"

Connected through hyperedge HE-6 (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"
    - "an analytical framework for device to device communication in cellular networks"
    - "throughput analysis for full duplex wireless networks with imperfect self interference cancellation"
    - "operational region of d2d communications for enhancing cellular network performance"

Connected through hyperedge HE-7 (induced by source paper "optimal context aware transmission strategy for non orthogonal d2d communications"):
  with members:
    - "cognitive and energy harvesting based d2d communication in cellular networks stochastic geometry modeling and analysis"
    - "spatial and temporal correlation of the interference in aloha ad hoc networks"

Connected through hyperedge HE-8 (induced by source paper "d2d enhanced heterogeneous cellular networks with dynamic tdd"):
  with members:
    - "spectrum sharing for device to device communication in cellular networks"
    - "dynamic uplink downlink optimization in tdd based small cell networks"
    - "successive interference cancellation in heterogeneous cellular networks"
    - "efficiency resource allocation for device to device underlay communication systems a reverse iterative combinatorial auction based approach"
    - "offloading in heterogeneous networks modeling analysis and design insights"
    - "analytical modeling of uplink cellular networks"
    - "heterogeneous cellular networks with flexible cell association a comprehensive downlink sinr analysis"
    - "modeling and analysis of k tier downlink heterogeneous cellular 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)