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: "a sharing and competition aware framework for cellular network evolution planning"
  Abstract: Mobile network operators are facing the difficult task of significantly increasing capacity to meet projected demand while keeping CAPEX and OPEX down. We argue that infrastructure sharing is a key consideration in operators' planning of the evolution of their networks, and that such planning can be viewed as a stage in the cognitive cycle. In this paper, we present a framework to model this planning process while taking into account both the ability to share resources and the constraints imposed by competition regulation (the latter quantified using the Herfindahl index). Using real-world demand and deployment data, we find that the ability to share infrastructure essentially moves capacity from rural, sparsely populated areas (where some of the current infrastructure can be decommissioned) to urban ones (where most of the next-generation base stations would be deployed), with significant increases in resource efficiency. Tight competition regulation somewhat limits the ability to share but does not entirely jeopardize those gains, while having the secondary effect of encouraging the wider deployment of next-generation technologies.

Connected through hyperedge HE-1 (induced by source paper "from megabits to cpu ticks enriching a demand trace in the age of mec"):
  with members:
    - "cellular network traces towards 5g usage analysis and generation"
    - "the price of fog a data driven study on caching architectures in vehicular networks"
    - "joint optimization of radio and computational resources for multicell mobile edge computing"
    - "efficient multi user computation offloading for mobile edge cloud computing"
    - "living on the edge the role of proactive caching in 5g wireless networks"
    - "data for development the d4d challenge on mobile phone data"

Connected through hyperedge HE-2 (induced by source paper "5g traffic forecasting if verticals and mobile operators cooperate"):
  with members:
    - "z torch an automated nfv orchestration and monitoring solution"
    - "network slicing based 5g and future mobile networks mobility resource management and challenges"
    - "network slicing to enable scalability and flexibility in 5g mobile networks"

Connected through hyperedge HE-3 (induced by source paper "cellular network traces towards 5g usage analysis and generation"):
  with members:
    - "advanced coordinated beamforming for the downlink of future lte cellular networks"
    - "understanding mobile traffic patterns of large scale cellular towers in urban environment"

Connected through hyperedge HE-4 (induced by source paper "resource sharing among mmwave cellular service providers in a vertically differentiated duopoly"):
  with members:
    - "the potential of resource sharing in 5g millimeter wave bands"
    - "resource sharing in 5g mmwave cellular networks"
    - "gains of restricted secondary licensing in millimeter wave cellular systems"
    - "on the feasibility of sharing spectrum licenses in mmwave cellular systems"
    - "coverage and rate analysis for millimeter wave cellular networks"
    - "millimeter wave channel modeling and cellular capacity evaluation"
    - "on the role of infrastructure sharing for mobile network operators in emerging markets"
    - "a tractable approach to coverage and rate in cellular networks"

Connected through hyperedge HE-5 (induced by source paper "spectrum and infrastructure sharing in millimeter wave cellular networks an economic perspective"):
  with members:
    - "the potential of resource sharing in 5g millimeter wave bands"
    - "resource sharing in 5g mmwave cellular networks"
    - "spectrum pooling in mmwave networks opportunities challenges and enablers"
    - "on the feasibility of sharing spectrum licenses in mmwave cellular systems"
    - "coverage and rate analysis for millimeter wave cellular networks"
    - "millimeter wave channel modeling and cellular capacity evaluation"
    - "on the role of infrastructure sharing for mobile network operators in emerging markets"
    - "the urge to merge when cellular service providers pool capacity"

Connected through hyperedge HE-6 (induced by source paper "wireless vehicular networks in emergencies a single frequency network approach"):
  with members:
    - "resource allocation frameworks for network coded layered multimedia multicast services"
    - "sleep period optimization model for layered video service delivery over embms networks"
    - "an accurate and efficient analysis of a mbsfn network"
    - "offloading in heterogeneous networks modeling analysis and design insights"

Connected through hyperedge HE-7 (induced by source paper "multi tenant radio access network slicing statistical multiplexing of spatial loads"):
  with members:
    - "qos aware user association for load balancing in heterogeneous cellular networks"
    - "user association for load balancing in heterogeneous cellular networks"
    - "modeling and analysis of k tier downlink heterogeneous cellular networks"

Connected through hyperedge HE-8 (induced by source paper "how close to the edge delay utilization tradeoffs in mec"):
  with members:
    - "the price of fog a data driven study on caching architectures in vehicular networks"
    - "living on the edge the role of proactive caching in 5g 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)