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: "downlink and uplink decoupling a disruptive architectural design for 5g networks"
  Abstract: Cell association in cellular networks has traditionally been based on the downlink received signal power only, despite the fact that uplink and downlink transmission powers and interference levels differed significantly. This approach was adequate in homogeneous networks with macro base stations all having similar transmission power levels. However, with the growth of heterogeneous networks where there is a big disparity in the transmit power of the different base station types, this approach is highly inefficient. In this paper, we study the notion of Downlink and Uplink Decoupling (DUDe) where the downlink cell association is based on the downlink received power while the uplink is based on the pathloss. We present the motivation and assess the gains of this 5G design approach with simulations that are based on Vodafone's LTE field trial network in a dense urban area, employing a high resolution ray-tracing pathloss prediction and realistic traffic maps based on live network measurements.

Connected through hyperedge HE-1 (induced by source paper "a survey on the security and the evolution of osmotic and catalytic computing for 5g networks"):
  with members:
    - "5g nr jamming spoofing and sniffing threat assessment and mitigation"
    - "a framework for mitigating zero day attacks in iot"
    - "nhad neuro fuzzy based horizontal anomaly detection in online social networks"
    - "multi radio 5g architecture for connected and autonomous vehicles application and design insights"
    - "rehand secure region based fast handover with user anonymity for small cell networks in 5g"
    - "robust physical layer security for power domain non orthogonal multiple access based hetnets and hudns sic avoidance at eavesdroppers"
    - "a survey on the security of pervasive online social networks posns"
    - "a survey of physical layer security techniques for 5g wireless networks and challenges ahead"

Connected through hyperedge HE-2 (induced by source paper "multi channel access solutions for 5g new radio"):
  with members:
    - "why to decouple the uplink and downlink in cellular networks and how to do it"
    - "compflex comp for in band wireless full duplex"
    - "an overview of load balancing in hetnets old myths and open problems"

Connected through hyperedge HE-3 (induced by source paper "traffic aware gateway placement for high capacity flying networks"):
  with members:
    - "a routing metric for inter flow interference aware flying multi hop networks"
    - "gateway placement and selection solutions in wmns a survey"

Connected through hyperedge HE-4 (induced by source paper "a data aided channel estimation scheme for decoupled systems in heterogeneous networks"):
  with members:
    - "performance impact of los and nlos transmissions in dense cellular networks"
    - "why to decouple the uplink and downlink in cellular networks and how to do it"
    - "analysis of the decoupled access for downlink and uplink in wireless heterogeneous networks"
    - "joint rate and sinr coverage analysis for decoupled uplink downlink biased cell associations in hetnets"
    - "what will 5g be"
    - "massive mimo meets hetnet interference coordination through spatial blanking"
    - "load backhaul aware decoupled downlink uplink access in 5g systems"
    - "massive mimo and small cells improving energy efficiency by optimal soft cell coordination"

Connected through hyperedge HE-5 (induced by source paper "achieving low latency mobile edge computing by uplink and downlink decoupled access in hetnets"):
  with members:
    - "a primer on cellular network analysis using stochastic geometry"
    - "joint uplink downlink optimization for backhaul limited mobile cloud computing with user scheduling"
    - "why to decouple the uplink and downlink in cellular networks and how to do it"
    - "analysis of the decoupled access for downlink and uplink in wireless heterogeneous networks"
    - "heterogeneous cellular networks with flexible cell association a comprehensive downlink sinr analysis"

Connected through hyperedge HE-6 (induced by source paper "downlink and uplink decoupling in two tier heterogeneous networks with multi antenna base stations"):
  with members:
    - "a comparison study of coupled and decoupled uplink heterogeneous cellular networks"
    - "why to decouple the uplink and downlink in cellular networks and how to do it"
    - "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"
    - "analysis and optimization of inter tier interference coordination in downlink multi antenna hetnets with offloading"
    - "capacity analysis of decoupled downlink and uplink access in 5g heterogeneous systems"
    - "throughput and energy efficiency analysis of small cell networks with multi antenna base stations"

Connected through hyperedge HE-7 (induced by source paper "on muting mobile terminals for uplink interference mitigation in hetnets system level analysis via stochastic geometry"):
  with members:
    - "analytical modeling of interference aware power control for the uplink of heterogeneous cellular networks"
    - "the intensity matching approach a tractable stochastic geometry approximation to system level analysis of cellular networks"
    - "optimizing user association and spectrum allocation in hetnets a utility perspective"
    - "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"
    - "on association cells in random heterogeneous networks"
    - "downlink rate distribution in heterogeneous cellular networks under generalized cell selection"

Connected through hyperedge HE-8 (induced by source paper "performance analysis of decoupled cell association in multi tier hybrid networks using real blockage environments"):
  with members:
    - "downlink and uplink cell association with traditional macrocells and millimeter wave small cells"
    - "tractable resource management with uplink decoupled millimeter wave overlay in ultra dense cellular networks"
    - "tractable model for rate in self backhauled millimeter wave cellular networks"
    - "coverage and rate analysis for millimeter wave cellular networks"
    - "millimeter wave cellular wireless networks potentials and challenges"
    - "five disruptive technology directions for 5g"
    - "analysis of blockage effects on urban 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.NI(Networking and Internet Architecture)