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: "performance comparison of dual connectivity and hard handover for lte 5g tight integration"
  Abstract: Communications at frequencies above 10 GHz (the mmWave band) are expected to play a major role for the next generation of cellular networks (5G), because of the potential multi-gigabit, ultra-low latency performance of this technology. mmWave frequencies however suffer from very high isotropic pathloss, which may result in cells with a much smaller coverage area than current LTE macrocells. High directionality techniques will be used to improve signal quality and extend coverage area, along with a high density deployment of mmWave base stations (BS). However, when propagation conditions are hard and it is difficult to provide high quality coverage with mmWave BS, it is necessary to rely on previous generation LTE base stations, which make use of lower frequencies (900 MHz - 3.5 GHz), which are less sensitive to blockage and experience lower pathloss. In order to provide ultra-reliable services to mobile users there is a need for network architectures that tightly and seamlessly integrate the LTE and mmWave Radio Access Technologies. In this paper we will present two possible alternatives for this integration and show how simulation tools can be used to assess and compare their performance.

Connected through hyperedge HE-1 (induced by source paper "a tutorial on beam management for 3gpp nr at mmwave frequencies"):
  with members:
    - "statistical blockage modeling and robustness of beamforming in millimeter wave systems"
    - "adaptive beamwidth selection for contention based access periods in millimeter wave wlans"
    - "standalone and non standalone beam management for 3gpp nr at mmwaves"
    - "study of realistic antenna patterns in 5g mmwave cellular scenarios"
    - "initial access frameworks for 3gpp nr at mmwave frequencies"
    - "on the beamformed broadcast signaling for millimeter wave cell discovery performance analysis and design insight"
    - "caching meets millimeter wave communications for enhanced mobility management in 5g networks"
    - "improved handover through dual connectivity in 5g mmwave mobile networks"

Connected through hyperedge HE-2 (induced by source paper "end to end simulation of 5g mmwave networks"):
  with members:
    - "integration of carrier aggregation and dual connectivity for the ns 3 mmwave module"
    - "x tcp a cross layer approach for tcp uplink flows in mmwave networks"
    - "enhancing tcp end to end performance in millimeter wave communications"
    - "beam alignment for millimetre wave links with motion prediction of autonomous vehicles"
    - "tcp in 5g mmwave networks link level retransmissions and mp tcp"
    - "provisioning low latency resilient mobile edge clouds for 5g"
    - "caching meets millimeter wave communications for enhanced mobility management in 5g networks"
    - "reliable video streaming over mmwave with multi connectivity and network coding"

Connected through hyperedge HE-3 (induced by source paper "integration of carrier aggregation and dual connectivity for the ns 3 mmwave module"):
  with members:
    - "statistical blockage modeling and robustness of beamforming in millimeter wave systems"
    - "end to end simulation of 5g mmwave networks"
    - "tcp in 5g mmwave networks link level retransmissions and mp tcp"
    - "reliable video streaming over mmwave with multi connectivity and network coding"
    - "improved handover through dual connectivity in 5g mmwave mobile networks"
    - "ns 3 implementation of the 3gpp mimo channel model for frequency spectrum above 6 ghz"
    - "base station diversity propagation measurements at 73 ghz millimeter wave for 5g coordinated multipoint comp analysis"
    - "a framework for end to end evaluation of 5g mmwave cellular networks in ns 3"

Connected through hyperedge HE-4 (induced by source paper "multi sector and multi panel performance in 5g mmwave cellular networks"):
  with members:
    - "study of realistic antenna patterns in 5g mmwave cellular scenarios"
    - "end to end simulation of 5g mmwave networks"
    - "tcp in 5g mmwave networks link level retransmissions and mp tcp"
    - "improved handover through dual connectivity in 5g mmwave mobile networks"
    - "ns 3 implementation of the 3gpp mimo channel model for frequency spectrum above 6 ghz"
    - "5g cellular user equipment from theory to practical hardware design"
    - "understanding noise and interference regimes in 5g millimeter wave cellular networks"
    - "millimeter wave cellular wireless networks potentials and challenges"

Connected through hyperedge HE-5 (induced by source paper "improved handover through dual connectivity in 5g mmwave mobile networks"):
  with members:
    - "adaptive beamwidth selection for contention based access periods in millimeter wave wlans"
    - "channel dynamics and snr tracking in millimeter wave cellular systems"
    - "transport layer performance in 5g mmwave cellular"
    - "a framework for end to end evaluation of 5g mmwave cellular networks in ns 3"
    - "multi connectivity in 5g mmwave cellular networks"
    - "uplink based framework for control plane applications in 5g mmwave cellular networks"
    - "comparative analysis of initial access techniques in 5g mmwave cellular networks"
    - "directional initial access for millimeter wave cellular systems"

Connected through hyperedge HE-6 (induced by source paper "tcp in 5g mmwave networks link level retransmissions and mp tcp"):
  with members:
    - "improved handover through dual connectivity in 5g mmwave mobile networks"
    - "transport layer performance in 5g mmwave cellular"
    - "a framework for end to end evaluation of 5g mmwave cellular networks in ns 3"
    - "multipath tcp analysis design and implementation"
    - "millimeter wave cellular networks a mac layer perspective"
    - "millimeter wave cellular wireless networks potentials and challenges"
    - "millimeter wave channel modeling and cellular capacity evaluation"
    - "five disruptive technology directions for 5g"

Connected through hyperedge HE-7 (induced by source paper "initial access in 5g mmwave cellular networks"):
  with members:
    - "channel dynamics and snr tracking in millimeter wave cellular systems"
    - "multi connectivity in 5g mmwave cellular networks"
    - "context information based initial cell search for millimeter wave 5g cellular networks"
    - "comparative analysis of initial access techniques in 5g mmwave cellular networks"
    - "context information for fast cell discovery in mm wave 5g networks"
    - "millimeter wave cellular networks a mac layer perspective"
    - "directional initial access for millimeter wave cellular systems"
    - "directional cell discovery in millimeter wave 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)