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: "dynamic channel allocation for class based qos provisioning and call admission in visible light communication"
  Abstract: Provisioning of quality of service (QoS) is a key issue in wireless communication systems. Owing to the fact that QoS requirements are not very strict for all traffic types, more calls of higher priority traffic classes can be accommodated by blocking a slightly greater number of calls of lower priority traffic classes. Diverse types of high data rate traffic are supported by existing wireless communication systems, although resources are limited. Hence, priority-based resource allocation can ensure sufficient service quality for calls of important traffic classes. However, the use of fixed guard channels to prioritize any class of calls always reduces channel utilization. Hence, we propose a priority-based dynamic channel reservation scheme for higher priority calls that does not reduce channel utilization significantly. The number of reserved channels for each individual traffic class is calculated using real-time observation of call arrival rates for all traffic. The scheme reduces the call blocking probability for higher priority calls while simultaneously increasing channel utilization. The proposed channel reservation scheme can be efficiently applied for visible light communication (VLC) systems as well as for other wireless communication systems. The proposed Markov Chain model is expected to be very effective for queuing analysis and particularly for implementing a priority-based scheme for any number of traffic classes. We consider VLC as the system model for performance analysis. The numerical results show that the proposed scheme is able to attain a reasonable call blocking probability for higher priority calls, without sacrificing channel utilization.

Connected through hyperedge HE-1 (induced by source paper "a comparative survey of optical wireless technologies architectures and applications"):
  with members:
    - "optical communication in space challenges and mitigation techniques"
    - "separation framework an enabler for cooperative and d2d communication for future 5g networks"
    - "on the performance of mimo fso communications over double generalized gamma fading channels"
    - "what will 5g be"

Connected through hyperedge HE-2 (induced by source paper "resource allocation and interference management in ofdma based vlc networks"):
  with members:
    - "design of a cognitive vlc network with illumination and handover requirements"
    - "analytical evaluation of fractional frequency reuse for ofdma cellular networks"
    - "on the capacity of free space optical intensity channels"

Connected through hyperedge HE-3 (induced by source paper "qos provisioning using optimal call admission control for wireless cellular networks"):
  with members:
    - "class based service connectivity using multi level bandwidth adaptation in multimedia wireless networks"
    - "call admission control based on adaptive bandwidth allocation for wireless networks"

Connected through hyperedge HE-4 (induced by source paper "class based service connectivity using multi level bandwidth adaptation in multimedia wireless networks"):
  with members:
    - "call admission control based on adaptive bandwidth allocation for wireless 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)