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: "random cell association and void probability in poisson distributed cellular networks"
  Abstract: This paper studied the fundamental modeling defect existing in Poisson-distributed cellular networks in which all base stations form a homogeneous Poisson point process (PPP) of intensity $\lambda_B$ and all users form another independent PPP of intensity $\lambda_U$. The modeling defect, hardly discovered in prior works, is the void cell issue that stems from the independence between the distributions of users and BSs and "user-centric" cell association, and it could give rise to very inaccurate analytical results. We showed that the void probability of a cell under generalized random cell association is always bounded above zero and its theoretical lower bound is $\exp(-\frac{\lambda_U}{\lambda_B})$ that can be achieved by large association weighting. An accurate expression of the void probability of a cell was derived and simulation results validated its correctness. We also showed that the associated BSs are essentially no longer a PPP such that modeling them as a PPP to facilitate the analysis of interference-related performance metrics may detach from reality if the BS intensity is not significantly large if compared with the user intensity.

Connected through hyperedge HE-1 (induced by source paper "mmwave uav networks with multi cell association performance limit and optimization"):
  with members:
    - "cellular connectivity for uavs network modeling performance analysis and design guidelines"
    - "survey on uav cellular communications practical aspects standardization advancements regulation and security challenges"
    - "wireless communication using unmanned aerial vehicles uavs optimal transport theory for hover time optimization"
    - "fast deployment of uav networks for optimal wireless coverage"
    - "coverage rate tradeoff analysis in mmwave heterogeneous cellular networks"
    - "efficient deployment of multiple unmanned aerial vehicles for optimal wireless coverage"
    - "traffic management for heterogeneous networks with opportunistic unlicensed spectrum sharing"
    - "enabling uav cellular with millimeter wave communication potentials and approaches"

Connected through hyperedge HE-2 (induced by source paper "ultra reliable and low latency communications using proactive multi cell association"):
  with members:
    - "wireless channel dynamics and robustness for ultra reliable low latency communications"
    - "resource allocation and harq optimization for urllc traffic in 5g wireless networks"
    - "reliable transmission of short packets through queues and noisy channels under latency and peak age violation guarantees"
    - "energy latency tradeoff in ultra reliable low latency communication with retransmissions"
    - "joint uplink and downlink resource configuration for ultra reliable and low latency communications"
    - "a statistical learning approach to ultra reliable low latency communication"
    - "heterogeneous networks with power domain noma coverage throughput and power allocation analysis"
    - "cross layer optimization for ultra reliable and low latency radio access networks"

Connected through hyperedge HE-3 (induced by source paper "fundamentals of simultaneous wireless information and power transmission in heterogeneous networks a cell load perspective"):
  with members:
    - "modeling and analysis of cellular networks using stochastic geometry a tutorial"
    - "wireless power transfer in massive mimo aided hetnets with user association"
    - "fundamentals of the downlink green coverage and energy efficiency in heterogeneous networks"
    - "traffic management for heterogeneous networks with opportunistic unlicensed spectrum sharing"
    - "on the limits of coexisting coverage and capacity in multi rat heterogeneous networks"
    - "optimal cell load and throughput in green small cell networks with generalized cell association"
    - "wireless networks with rf energy harvesting a contemporary survey"
    - "simultaneous information and energy transfer in large scale networks with without relaying"

Connected through hyperedge HE-4 (induced by source paper "unified analytical volume distribution of poisson delaunay simplex and its application to coordinated multi point transmission"):
  with members:
    - "downlink coordinated joint transmission for mutual information accumulation"
    - "optimal dynamic point selection for power minimization in multiuser downlink comp"
    - "deploying dense networks for maximal energy efficiency small cells meet massive mimo"
    - "optimal cell load and throughput in green small cell networks with generalized cell association"
    - "spectral efficiency scaling laws in dense random wireless networks with multiple receive antennas"
    - "what will 5g be"
    - "worst case user analysis in poisson voronoi cells"
    - "a tractable approach to coverage and rate in cellular networks"

Connected through hyperedge HE-5 (induced by source paper "full duplex heterogeneous networks with decoupled user association rate analysis and traffic scheduling"):
  with members:
    - "user selection and power allocation in full duplex multicell networks"
    - "downlink and uplink decoupling in two tier heterogeneous networks with multi antenna base stations"
    - "optimal joint power and subcarrier allocation for full duplex multicarrier non orthogonal multiple access systems"
    - "fundamentals of the downlink green coverage and energy efficiency in heterogeneous networks"
    - "traffic management for heterogeneous networks with opportunistic unlicensed spectrum sharing"
    - "full duplex mimo small cell networks with interference cancellation"
    - "on the limits of coexisting coverage and capacity in multi rat heterogeneous networks"
    - "why to decouple the uplink and downlink in cellular networks and how to do it"

Connected through hyperedge HE-6 (induced by source paper "heterogeneous networks with power domain noma coverage throughput and power allocation analysis"):
  with members:
    - "power domain non orthogonal multiple access noma in 5g systems potentials and challenges"
    - "non orthogonal multiple access in large scale heterogeneous networks"
    - "a survey on non orthogonal multiple access for 5g networks research challenges and future trends"
    - "nonorthogonal multiple access in large scale underlay cognitive radio networks"
    - "on the spectral efficiency and security enhancements of noma assisted multicast unicast streaming"
    - "energy efficient transmission design in non orthogonal multiple access"
    - "fundamentals of the downlink green coverage and energy efficiency in heterogeneous networks"
    - "cooperative non orthogonal multiple access with simultaneous wireless information and power transfer"

Connected through hyperedge HE-7 (induced by source paper "delay optimal biased user association in heterogeneous networks"):
  with members:
    - "optimizing user association and spectrum allocation in hetnets a utility perspective"
    - "optimal base station deployment for small cell networks with energy efficient power control"
    - "traffic driven spectrum allocation in heterogeneous networks"
    - "an overview of load balancing in hetnets old myths and open problems"
    - "what will 5g be"
    - "joint resource partitioning and offloading in heterogeneous cellular networks"
    - "offloading in heterogeneous networks modeling analysis and design insights"
    - "load aware modeling and analysis of heterogeneous cellular networks"

Connected through hyperedge HE-8 (induced by source paper "joint optimization framework for operational cost minimization in green coverage constrained wireless networks"):
  with members:
    - "5g ultra dense cellular networks"
    - "analysis of blockage effects on urban cellular networks"
    - "a tractable approach to coverage and rate in cellular networks"
    - "distance distributions in finite uniformly random networks theory and applications"

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)