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: "on the accuracy of the wyner model in cellular networks"
  Abstract: The Wyner model has been widely used to model and analyze cellular networks due to its simplicity and analytical tractability. Its key aspects include fixed user locations and the deterministic and homogeneous interference intensity. While clearly a significant simplification of a real cellular system, which has random user locations and interference levels that vary by several orders of magnitude over a cell, a common presumption by theorists is that the Wyner model nevertheless captures the essential aspects of cellular interactions. But is this true? To answer this question, we consider both uplink and downlink transmissions, and both outage-based and average-based metrics. For the uplink, for both metrics, we conclude that the Wyner model is in fact quite accurate for systems with a sufficient number of simultaneous users, e.g. CDMA. Conversely, it is broadly inaccurate otherwise. With multicell processing, intracell TDMA is shown to be suboptimal in terms of average throughput, in sharp contrast to predictions using the Wyner model. Turning to the downlink, the Wyner model is highly inaccurate for outage since it depends largely on the user locations. However, for average or sum throughput, the Wyner model serves as an acceptable simplification in certain special cases if the interference parameter is set appropriately.

Connected through hyperedge HE-1 (induced by source paper "hybrid lifi and wifi networks a survey"):
  with members:
    - "modeling the random orientation of mobile devices measurement analysis and lifi use case"
    - "impact of device orientation on error performance of lifi systems"
    - "bidirectional user throughput maximization based on feedback reduction in lifi networks"
    - "ieee 802 11ax high efficiency wlans"
    - "handover management in 5g and beyond a topology aware skipping approach"
    - "optical adaptive precoding for visible light communications"
    - "an overview of load balancing in hetnets old myths and open problems"
    - "fundamental limits of wideband localization part i a general framework"

Connected through hyperedge HE-2 (induced by source paper "node centrality metrics for hotspots analysis in telecom big data"):
  with members:
    - "problem adapted artificial intelligence for online network optimization"

Connected through hyperedge HE-3 (induced by source paper "analysis of lte a heterogeneous networks with sir based cell association and stochastic geometry"):
  with members:
    - "modeling and analysis of cellular networks using stochastic geometry a tutorial"
    - "optimizing user association and spectrum allocation in hetnets a utility perspective"
    - "an overview of load balancing in hetnets old myths and open problems"
    - "joint resource partitioning and offloading in heterogeneous cellular networks"
    - "structured spectrum allocation and user association in heterogeneous cellular networks"
    - "offloading in heterogeneous networks modeling analysis and design insights"
    - "heterogeneous cellular networks with flexible cell association a comprehensive downlink sinr analysis"
    - "user association for load balancing in heterogeneous cellular networks"

Connected through hyperedge HE-4 (induced by source paper "coverage analysis of two tier hetnets for co channel orthogonal and partial spectrum sharing under fractional load conditions"):
  with members:
    - "fundamentals of cluster centric content placement in cache enabled device to device networks"
    - "modeling and performance analysis of clustered device to device networks"
    - "tier association probability and spectrum partitioning for maximum rate coverage in multi tier heterogeneous networks"
    - "fundamentals of throughput maximization with random arrivals for m2m communications"
    - "structured spectrum allocation and user association in heterogeneous cellular networks"
    - "multi channel hybrid access femtocells a stochastic geometric analysis"
    - "average rate of downlink heterogeneous cellular networks over generalized fading channels a stochastic geometry approach"
    - "downlink rate distribution in heterogeneous cellular networks under generalized cell selection"

Connected through hyperedge HE-5 (induced by source paper "analytical modeling of interference aware power control for the uplink of heterogeneous cellular networks"):
  with members:
    - "the intensity matching approach a tractable stochastic geometry approximation to system level analysis of cellular networks"
    - "analysis of the decoupled access for downlink and uplink in wireless heterogeneous networks"
    - "on stochastic geometry modeling of cellular uplink transmission with truncated channel inversion power control"
    - "joint rate and sinr coverage analysis for decoupled uplink downlink biased cell associations in hetnets"
    - "multi user coverage probability of uplink cellular systems a stochastic geometry approach"
    - "downlink and uplink decoupling a disruptive architectural design for 5g networks"
    - "on association cells in random heterogeneous networks"
    - "average rate of downlink heterogeneous cellular networks over generalized fading channels a stochastic geometry approach"

Connected through hyperedge HE-6 (induced by source paper "cooperative base station coloring for pair wise multi cell coordination"):
  with members:
    - "a stochastic geometry framework for analyzing pairwise cooperative cellular networks"
    - "spectral efficiency of dynamic coordinated beamforming a stochastic geometry approach"
    - "user centric intercell interference nulling for downlink small cell networks"
    - "a tractable model for noncoherent joint transmission base station cooperation"
    - "location aware cross tier coordinated multipoint transmission in two tier cellular networks"
    - "interference coordination random clustering and adaptive limited feedback"
    - "fundamental limits of cooperation"
    - "a tractable approach to coverage and rate in cellular networks"

Connected through hyperedge HE-7 (induced by source paper "deploying dense networks for maximal energy efficiency small cells meet massive mimo"):
  with members:
    - "energy efficient future wireless networks a marriage between massive mimo and small cells"
    - "designing wireless broadband access for energy efficiency are small cells the only answer"
    - "interference management in 5g reverse tdd hetnets with wireless backhaul a large system analysis"
    - "massive mimo performance evaluation based on measured propagation data"
    - "massive mimo with non ideal arbitrary arrays hardware scaling laws and circuit aware design"
    - "massive mimo systems with non ideal hardware energy efficiency estimation and capacity limits"
    - "multiobjective signal processing optimization the way to balance conflicting metrics in 5g systems"
    - "impact of transceiver power consumption on the energy efficiency of zero forcing detector in massive mimo systems"

Connected through hyperedge HE-8 (induced by source paper "spectral efficiency of dynamic coordinated beamforming a stochastic geometry approach"):
  with members:
    - "a stochastic geometry framework for analyzing pairwise cooperative cellular networks"
    - "asymptotic deployment gain a simple approach to characterize the sinr distribution in general cellular networks"
    - "a practical cooperative multicell mimo ofdma network based on rank coordination"
    - "coordinated multicast beamforming in multicell networks"
    - "network mimo with linear zero forcing beamforming large system analysis impact of channel estimation and reduced complexity scheduling"
    - "fundamental limits of cooperation"
    - "multi antenna communication in ad hoc networks achieving mimo gains with simo transmission"
    - "a tractable approach to coverage and rate in 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)