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: "content centric routing in wi fi direct multi group networks"
  Abstract: The added value of Device-to-Device (D2D) communication amounts to an efficient content discovery mechanism that enables users to steer their requests toward the node most likely to satisfy them. In this paper, we address the implementation of content-centric routing in a D2D architecture for Android devices based on WiFi Direct, a protocol recently standardised by the Wi-Fi Alliance. After discussing the creation of multiple D2D groups, we introduce novel paradigms featuring intra- and inter-group bidirectional communication. We then present the primitives involved in content advertising and requesting among members of the multi-group network. Finally, we evaluate the performance of our architecture in a real testbed involving Android devices in different group configurations. We also compare the results against the ones achievable exploiting Bluetooth technologies.

Connected through hyperedge HE-1 (induced by source paper "wi fi direct based mobile ad hoc network"):
  with members:
    - "recent advances in mobile grid and cloud computing"

Connected through hyperedge HE-2 (induced by source paper "boosting the performance of content centric networking using delay tolerant networking mechanisms"):
  with members:
    - "characterizing interest aggregation in content centric networks"
    - "a light weight forwarding plane for content centric networks"
    - "a survey on device to device communication in cellular networks"

Connected through hyperedge HE-3 (induced by source paper "device aware routing and scheduling in multi hop device to device networks"):
  with members:
    - "a survey on device to device communication in cellular networks"
    - "relieving the wireless infrastructure when opportunistic networks meet guaranteed delays"

Connected through hyperedge HE-4 (induced by source paper "fair airtime allocation for content dissemination in wifi direct based mobile social networks"):
  with members:
    - "enabling multi hop ad hoc networks through wifi direct multi group networking"
    - "rigorous and practical proportional fair allocation for multi rate wi fi"

Connected through hyperedge HE-5 (induced by source paper "enabling multi hop ad hoc networks through wifi direct multi group networking"):
  with members:
    - "a survey on device to device communication in 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)