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: "study of the impact of phy and mac parameters in 3gpp c v2v mode 4"
  Abstract: In the latest years, 3GPP has added short-range cellular-V2X (C-V2X) to the features of LTE and 5G to allow vehicles, roadside devices, and vulnerable users to directly exchange information using the same chipset as for classical long-range connections. C-V2X is based on the use of advanced physical layer techniques and orthogonal resources, and one of the main aspects affecting its performance is the way resources are allocated. Allocations can be either managed by the network or in a distributed way, directly by the nodes. The latter case, called Mode 4, is required in those situations where the network cannot be involved in the scheduling process, for example, due to a lack of coverage, but could also be adopted in order to reduce the processing burden of eNodeB. An algorithm, defined in the standards, makes nodes sense the medium, and identify the best time-frequency combination to allocate their messages. Focusing on C-V2X Mode 4, in this paper, we analyze the parameters of the algorithm designed by 3GPP and their impact on the system performance. Through simulations in different large-scale scenarios, we show that modifying some parameters have negligible effect, that the proper choice of others can indeed improve the quality of service, and that a group of parameters allows to tradeoff reliability with update delay. The provided results can also be exploited to guide the future work.

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"
    - "analytical models of the performance of c v2x mode 4 vehicular communications"
    - "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"
    - "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 "congestion control mechanisms in ieee 802 11p and sidelink c v2x"):
  with members:
    - "analysis of distributed congestion control in cellular vehicle to everything networks"
    - "power and packet rate control for vehicular networks in multi application scenarios"

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

Connected through hyperedge HE-4 (induced by source paper "geo based scheduling for c v2x networks"):
  with members:
    - "analytical models of the performance of c v2x mode 4 vehicular communications"
    - "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 "reducing message collisions in sensing based semi persistent scheduling sps by using reselection lookaheads in cellular v2x"):
  with members:
    - "a fixed point model for semi persistent scheduling of vehicular safety messages"
    - "radio resource allocation for reliable out of coverage v2v communications"
    - "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)