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: "analytical models of the performance of c v2x mode 4 vehicular communications"
  Abstract: The C-V2X or LTE-V standard has been designed to support vehicle to everything (V2X) communications. The standard is an evolution of LTE, and it has been published by the 3GPP in Release 14. This new standard introduces the C-V2X or LTE-V Mode 4 that is specifically designed for V2V communications using the PC5 sidelink interface without any cellular infrastructure support. In Mode 4, vehicles autonomously select and manage their radio resources. Mode 4 is highly relevant since V2V safety applications cannot depend on the availability of infrastructure-based cellular coverage. This paper presents the first analytical models of the communication performance of C-V2X or LTE-V Mode 4. In particular, the paper presents analytical models for the average packet delivery ratio (PDR) as a function of the distance between transmitter and receiver, and for the four different types of transmission errors that can be encountered in C-V2X Mode 4. The models are validated for a wide range of transmission parameters and traffic densities. To this aim, this study compares the results obtained with the analytical models to those obtained with a C-V2X Mode 4 simulator implemented over Veins.

Connected through hyperedge HE-1 (induced by source paper "age of information optimized mac in v2x sidelink via piggyback based collaboration"):
  with members:
    - "ai assisted low information latency wireless networking"
    - "hierarchical soft slicing to meet multi dimensional qos demand in cache enabled vehicular networks"
    - "minimizing the age of information in a csma environment"
    - "scheduling policies for minimizing age of information in broadcast wireless networks"
    - "can decentralized status update achieve universally near optimal age of information in wireless multiaccess channels"
    - "study of the impact of phy and mac parameters in 3gpp c v2v mode 4"
    - "distributed scheduling algorithms for optimizing information freshness in wireless networks"
    - "age of information performance of multiaccess strategies with packet management"

Connected through hyperedge HE-2 (induced by source paper "analysis of distributed congestion control in cellular vehicle to everything networks"):
  with members:
    - "real time hardware in the loop emulation framework for dsrc based connected vehicle applications"
    - "study of the impact of phy and mac parameters in 3gpp c v2v mode 4"
    - "multiple access in cellular v2x performance analysis in highly congested vehicular networks"

Connected through hyperedge HE-3 (induced by source paper "performance analysis of c v2x mode 4 communication introducing an open source c v2x simulator"):
  with members:
    - "lightweight simulation of hybrid aerial and ground based vehicular communication networks"
    - "multiple access in cellular v2x performance analysis in highly congested vehicular networks"
    - "performance analysis of sensing based semi persistent scheduling in c v2x networks"

Connected through hyperedge HE-4 (induced by source paper "geo based scheduling for c v2x networks"):
  with members:
    - "study of the impact of phy and mac parameters in 3gpp c v2v mode 4"
    - "multiple access in cellular v2x performance analysis in highly congested vehicular networks"
    - "reducing message collisions in sensing based semi persistent scheduling sps by using reselection lookaheads in cellular v2x"

Connected through hyperedge HE-5 (induced by source paper "a discrete time markov chain based comparison of the mac layer performance of c v2x mode 4 and ieee 802 11p"):
  with members:
    - "analysis of the 802 11e enhanced distributed channel access function"

Connected through hyperedge HE-6 (induced by source paper "study of the impact of phy and mac parameters in 3gpp c v2v mode 4"):
  with members:
    - "multiple access in cellular v2x performance analysis in highly congested vehicular networks"
    - "performance analysis of sensing based semi persistent scheduling in c v2x 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)