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: "frame structure design and analysis for millimeter wave cellular systems"
  Abstract: The millimeter-wave (mmWave) frequencies have attracted considerable attention for fifth generation (5G) cellular communication as they offer orders of magnitude greater bandwidth than current cellular systems. However, the medium access control (MAC) layer may need to be significantly redesigned to support the highly directional transmissions, ultra-low latencies and high peak rates expected in mmWave communication. To address these challenges, we present a novel mmWave MAC layer frame structure with a number of enhancements including flexible, highly granular transmission times, dynamic control signal locations, extended messaging and ability to efficiently multiplex directional control signals. Analytic formulae are derived for the utilization and control overhead as a function of control periodicity, number of users, traffic statistics, signal-to-noise ratio and antenna gains. Importantly, the analysis can incorporate various front-end MIMO capability assumptions -- a critical feature of mmWave. Under realistic system and traffic assumptions, the analysis reveals that the proposed flexible frame structure design offers significant benefits over designs with fixed frame structures similar to current 4G long-term evolution (LTE). It is also shown that fully digital beamforming architectures offer significantly lower overhead compared to analog and hybrid beamforming under equivalent power budgets.

Connected through hyperedge HE-1 (induced by source paper "ultra low latency ull networks the ieee tsn and ietf detnet standards and related 5g ull research"):
  with members:
    - "a basic result on the superposition of arrival processes in deterministic networks"
    - "end to end simulation of 5g mmwave networks"
    - "information and communications technologies for sustainable development goals state of the art needs and perspectives"
    - "5g fronthaul latency and jitter studies of cpri over ethernet"
    - "r fft function split at ifft fft in unified lte cran and cable access network"
    - "towards 5g enabled tactile robotic telesurgery"
    - "fog aided wireless networks for content delivery fundamental latency tradeoffs"
    - "formal scheduling constraints for time sensitive networks"

Connected through hyperedge HE-2 (induced by source paper "a case for digital beamforming at mmwave"):
  with members:
    - "a tutorial on beam management for 3gpp nr at mmwave frequencies"
    - "throughput analysis of massive mimo uplink with low resolution adcs"
    - "blind estimation of sparse broadband massive mimo channels with ideal and one bit adcs"
    - "5g millimeter wave cellular system capacity with fully digital beamforming"
    - "uplink performance of wideband massive mimo with one bit adcs"
    - "hybrid architectures with few bit adc receivers achievable rates and energy rate tradeoffs"
    - "channel estimation in broadband millimeter wave mimo systems with few bit adcs"
    - "low power analog to digital conversion in millimeter wave systems impact of resolution and bandwidth on performance"

Connected through hyperedge HE-3 (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-4 (induced by source paper "impact of channel models on the end to end performance of mmwave cellular networks"):
  with members:
    - "study of realistic antenna patterns in 5g mmwave cellular scenarios"
    - "end to end simulation of 5g mmwave networks"
    - "modeling and analyzing millimeter wave cellular systems"
    - "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"
    - "overview of millimeter wave communications for fifth generation 5g wireless networks with a focus on propagation models"
    - "rapid fading due to human blockage in pedestrian crowds at 5g millimeter wave frequencies"
    - "transport layer performance in 5g mmwave cellular"

Connected through hyperedge HE-5 (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"
    - "performance comparison of dual connectivity and hard handover for lte 5g tight integration"

Connected through hyperedge HE-6 (induced by source paper "end to end simulation of integrated access and backhaul at mmwaves"):
  with members:
    - "a tutorial on beam management for 3gpp nr at mmwave frequencies"
    - "study of realistic antenna patterns in 5g mmwave cellular scenarios"
    - "end to end simulation of 5g mmwave networks"
    - "max min rates in self backhauled millimeter wave cellular networks"
    - "distributed path selection strategies for integrated access and backhaul at mmwaves"
    - "initial access frameworks for 3gpp nr at mmwave frequencies"
    - "integrated mmwave access and backhaul in 5g bandwidth partitioning and downlink analysis"
    - "5g wireless backhaul networks challenges and research advances"

Connected through hyperedge HE-7 (induced by source paper "understanding end to end effects of channel dynamics in millimeter wave 5g new radio"):
  with members:
    - "statistical blockage modeling and robustness of beamforming in millimeter wave systems"
    - "rapid fading due to human blockage in pedestrian crowds at 5g millimeter wave frequencies"
    - "millimeter wave human blockage at 73 ghz with a simple double knife edge diffraction model and extension for directional antennas"
    - "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"
    - "achieving ultra low latency in 5g millimeter wave cellular networks"
    - "directional cell discovery in millimeter wave cellular networks"

Connected through hyperedge HE-8 (induced by source paper "a survey on low latency towards 5g ran core network and caching solutions"):
  with members:
    - "stochastic optimization and control framework for 5g network slicing with effective isolation"
    - "ultra reliable and low latency communications in 5g downlink physical layer aspects"
    - "human in the loop wireless communications machine learning and brain aware resource management"
    - "r fft function split at ifft fft in unified lte cran and cable access network"
    - "a survey on mobile edge networks convergence of computing caching and communications"
    - "joint user association power control and scheduling in multi cell 5g networks"
    - "fundamental limits on latency in transceiver cache aided hetnets"
    - "decentralized coded caching in wireless networks trade off between storage and latency"

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)