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: "fundamentals of cluster centric content placement in cache enabled device to device networks"
  Abstract: This paper develops a comprehensive analytical framework with foundations in stochastic geometry to characterize the performance of cluster-centric content placement in a cache-enabled device-to-device (D2D) network. Different from device-centric content placement, cluster-centric placement focuses on placing content in each cluster, such that the collective performance of all the devices in each cluster is optimized. Modeling the locations of the devices by a Poisson cluster process, we define and analyze the performance for three general cases: 1)    $k$   -Tx case: the receiver of interest is chosen uniformly at random in a cluster and its content of interest is available at the    $k{\mathrm{ th}}$    closest device to the cluster center; 2)    $\ell $   -Rx case: the receiver of interest is the    $\ell {\mathrm{ th}}$    closest device to the cluster center and its content of interest is available at a device chosen uniformly at random from the same cluster; and 3) baseline case: the receiver of interest is chosen uniformly at random in a cluster and its content of interest is available at a device chosen independently and uniformly at random from the same cluster. Easy-to-use expressions for the key performance metrics, such as coverage probability and area spectral efficiency of the whole network, are derived for all three cases. Our analysis concretely demonstrates significant improvement in the network performance when the device on which content is cached or device requesting content from cache is biased to lie closer to the cluster center compared with the baseline case. Based on this insight, we develop and analyze a new generative model for cluster-centric D2D networks that allows to study the effect of intra-cluster interfering devices that are more likely to lie closer to the cluster center.

Connected through hyperedge HE-1 (induced by source paper "stochastic design and analysis of wireless cloud caching networks"):
  with members:
    - "3gpp inspired hetnet model using poisson cluster process sum product functionals and downlink coverage"
    - "random caching based cooperative transmission in heterogeneous wireless networks"
    - "stochastic geometry modeling and analysis of single and multi cluster wireless networks"
    - "optimizing content caching to maximize the density of successful receptions in device to device networking"
    - "effect of retransmissions on optimal caching in cache enabled small cell networks"
    - "poisson cluster process based analysis of hetnets with correlated user and base station locations"
    - "cooperative caching and transmission design in cluster centric small cell networks"
    - "cache enabled heterogeneous cellular networks optimal tier level content placement"

Connected through hyperedge HE-2 (induced by source paper "cooperative harq assisted noma scheme in large scale d2d networks"):
  with members:
    - "rapro a novel 5g rapid prototyping system architecture"
    - "power domain non orthogonal multiple access noma in 5g systems potentials and challenges"
    - "modeling and analysis of cellular networks using stochastic geometry a tutorial"
    - "a minorization maximization method for optimizing sum rate in the downlink of non orthogonal multiple access systems"
    - "dynamic user clustering and power allocation for uplink and downlink non orthogonal multiple access noma systems"
    - "modeling cellular networks with full duplex d2d communication a stochastic geometry approach"
    - "cooperative relaying under spatially and temporally correlated interference"
    - "fairness for non orthogonal multiple access in 5g systems"

Connected through hyperedge HE-3 (induced by source paper "uplink performance analysis in d2d enabled mmwave cellular networks with clustered users"):
  with members:
    - "modeling and analyzing millimeter wave cellular systems"
    - "performance analysis of outdoor mmwave ad hoc networks"
    - "modeling and performance analysis of clustered device to device networks"
    - "stochastic geometry modeling and analysis of multi tier millimeter wave cellular networks"
    - "on the joint impact of beamwidth and orientation error on throughput in directional wireless poisson networks"
    - "spectrum sharing for device to device communication in cellular networks"
    - "tractable model for rate in self backhauled millimeter wave cellular networks"
    - "coverage and rate analysis for millimeter wave cellular networks"

Connected through hyperedge HE-4 (induced by source paper "wireless node cooperation with resource availability constraints"):
  with members:
    - "cooperative base station coloring for pair wise multi cell coordination"
    - "coverage gains from the static cooperation of mutually nearest neighbours"
    - "a stochastic geometry framework for analyzing pairwise cooperative cellular networks"
    - "analyzing interference from static cellular cooperation using the nearest neighbour model"
    - "a tractable model for noncoherent joint transmission base station cooperation"
    - "interference coordination random clustering and adaptive limited feedback"
    - "robust methods for lte and wimax dimensioning"
    - "modeling and analysis of k tier downlink heterogeneous cellular networks"

Connected through hyperedge HE-5 (induced by source paper "optimal caching and scheduling for cache enabled d2d communications"):
  with members:
    - "optimal geographic caching in finite wireless networks"
    - "wireless device to device caching networks basic principles and system performance"
    - "the effects of mobility on the hit performance of cached d2d networks"
    - "optimal geographic caching in cellular networks"
    - "efficient scheduling and power allocation for d2d assisted wireless caching networks"
    - "base station assisted device to device communications for high throughput wireless video networks"
    - "offloading in heterogeneous networks modeling analysis and design insights"
    - "coverage and economy of cellular networks with many base stations"

Connected through hyperedge HE-6 (induced by source paper "spatial motifs for device to device network analysis dna in cellular networks"):
  with members:
    - "spectral and energy efficiency of uplink d2d underlaid massive mimo cellular networks"
    - "modeling and performance analysis of clustered device to device networks"
    - "unmanned aerial vehicle with underlaid device to device communications performance and tradeoffs"
    - "context aware small cell networks how social metrics improve wireless resource allocation"
    - "a survey on device to device communication in cellular networks"
    - "cognitive and energy harvesting based d2d communication in cellular networks stochastic geometry modeling and analysis"
    - "modeling analysis and optimization of multicast device to device transmissions"
    - "resource management for device to device underlay communication"

Connected through hyperedge HE-7 (induced by source paper "performance analysis of inband fd d2d communications with imperfect si cancellation for wireless video distribution"):
  with members:
    - "a novel device to device discovery scheme for underlay cellular networks"
    - "full duplex device to device collaboration for low latency wireless video distribution"
    - "optimizing content caching to maximize the density of successful receptions in device to device networking"
    - "living on the edge the role of proactive caching in 5g wireless networks"
    - "femtocaching and device to device collaboration a new architecture for wireless video distribution"

Connected through hyperedge HE-8 (induced by source paper "poisson cluster process based analysis of hetnets with correlated user and base station locations"):
  with members:
    - "3gpp inspired hetnet model using poisson cluster process sum product functionals and downlink coverage"
    - "poisson cluster process bridging the gap between ppp and 3gpp hetnet models"
    - "modeling and analysis of cellular networks using stochastic geometry a tutorial"
    - "ergodic spectral efficiency in mimo cellular networks"
    - "fundamentals of modeling finite wireless networks using binomial point process"
    - "a primer on cellular network analysis using stochastic geometry"
    - "optimal geographic caching in finite wireless networks"
    - "enriched k tier hetnet model to enable the analysis of user centric small cell deployments"

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)