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: "cooperative interference mitigation and handover management for heterogeneous cloud small cell networks"
  Abstract: Heterogeneous small cell networks have attracted much attention for satisfying users’ explosive data traffic requirements. The heterogeneous cloud small cell network (HCSNet), which combines cloud computing and a heterogeneous small cell network, will likely play an important role in 5G mobile communication networks. However, with massive deployment of small cells, co-channel interference and handover management are two important problems in an HCSNet, especially for cell edge users. In this article, we examine the problems of cooperative interference mitigation and handover management in an HCSNet. A network architecture is described to combine cloud radio access network with small cells. An effective CoMP clustering scheme using affinity propagation is adopted to mitigate cell edge users’ interference. A low-complexity handover management scheme is presented, and its signaling procedure is analyzed in an HCSNet. Numerical results show that with the proposed network architecture, CoMP clustering and handover management schemes can significantly increase the capacity of HCSNet while maintaining users’ quality of service.

Connected through hyperedge HE-1 (induced by source paper "an edge computing empowered radio access network with uav mounted fso fronthaul and backhaul key challenges and approaches"):
  with members:
    - "energy efficient uav communication with trajectory optimization"
    - "caching in the sky proactive deployment of cache enabled unmanned aerial vehicles for optimized quality of experience"
    - "fog computing based radio access networks issues and challenges"
    - "fso based vertical backhaul fronthaul framework for 5g wireless networks"
    - "the new frontier in ran heterogeneity multi tier drone cells"
    - "wireless communications with unmanned aerial vehicles opportunities and challenges"

Connected through hyperedge HE-2 (induced by source paper "distributed user association in energy harvesting small cell networks a probabilistic bandit model"):
  with members:
    - "multi armed bandits with application to 5g small cells"
    - "user association in 5g networks a survey and an outlook"
    - "multi access communications with energy harvesting a multi armed bandit model and the optimality of the myopic policy"
    - "optimizing user association and spectrum allocation in hetnets a utility perspective"
    - "channel selection for network assisted d2d communication via no regret bandit learning with calibrated forecasting"
    - "a context aware matching game for user association in wireless small cell networks"
    - "matching theory for priority based cell association in the downlink of wireless small cell networks"
    - "a traffic load balancing framework for software defined radio access networks powered by hybrid energy sources"

Connected through hyperedge HE-3 (induced by source paper "distributed user association in energy harvesting small cell networks an exchange economy with uncertainty"):
  with members:
    - "distributed user association in energy harvesting small cell networks a probabilistic bandit model"
    - "distributed user association in energy harvesting dense small cell networks a mean field multi armed bandit approach"
    - "user association in 5g networks a survey and an outlook"
    - "optimizing user association and spectrum allocation in hetnets a utility perspective"
    - "distributed channel assignment in cognitive radio networks stable matching and walrasian equilibrium"
    - "a context aware matching game for user association in wireless small cell networks"
    - "matching theory for priority based cell association in the downlink of wireless small cell networks"
    - "a traffic load balancing framework for software defined radio access networks powered by hybrid energy sources"

Connected through hyperedge HE-4 (induced by source paper "user centric performance optimization with remote radio head cooperation in c ran"):
  with members:
    - "joint precoding and rrh selection for user centric green mimo c ran"
    - "load balancing via joint transmission in heterogeneous lte modeling and computation"
    - "joint comp cell selection and resource allocation with fronthaul constrained c ran"
    - "load optimization with user association in cooperative and load coupled lte networks"
    - "dynamic joint uplink and downlink optimization for uplink and downlink decoupling enabled 5g heterogeneous networks"
    - "green ofdma resource allocation in cache enabled cran"
    - "system architecture and key technologies for 5g heterogeneous cloud radio access networks"
    - "analysis of cell load coupling for lte network planning and optimization"

Connected through hyperedge HE-5 (induced by source paper "cyber insurance for heterogeneous wireless networks"):
  with members:
    - "fronthauling for 5g lte u ultra dense cloud small cell networks"
    - "living on the edge the role of proactive caching in 5g wireless networks"
    - "evolution toward 5g multi tier cellular wireless networks an interference management perspective"
    - "heterogeneous cellular networks with flexible cell association a comprehensive downlink sinr analysis"

Connected through hyperedge HE-6 (induced by source paper "network slicing based 5g and future mobile networks mobility resource management and challenges"):
  with members:
    - "fronthauling for 5g lte u ultra dense cloud small cell networks"
    - "fronthaul constrained cloud radio access networks insights and challenges"
    - "coexistence of wi fi and heterogeneous small cell networks sharing unlicensed spectrum"

Connected through hyperedge HE-7 (induced by source paper "fog radio access networks mobility management interference mitigation and resource optimization"):
  with members:
    - "fog computing based radio access networks issues and challenges"
    - "heterogeneous cloud radio access networks a new perspective for enhancing spectral and energy efficiencies"
    - "backhaul limited asymmetric cooperation for mimo cellular networks via semidefinite relaxation"

Connected through hyperedge HE-8 (induced by source paper "downlink energy efficiency of power allocation and wireless backhaul bandwidth allocation in heterogeneous small cell networks"):
  with members:
    - "joint downlink cell association and bandwidth allocation for wireless backhauling in two tier hetnets with large scale antenna arrays"

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.IT(Information Theory)