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: "load balancing via joint transmission in heterogeneous lte modeling and computation"
  Abstract: As one of the Coordinated Multipoint (CoMP) techniques, Joint Transmission (JT) can improve the overall system performance. In this paper, from the load balancing perspective, we study how the maximum load can be reduced by optimizing JT pattern that characterizes the association between cells and User Equipments (UEs). To give a model of the interference caused by cells with different time-frequency resource usage, we extend a load coupling model, by taking into account JT. In this model, the mutual interference depends on the load of cells coupled in a non-linear system with each other. Under this model, we study a two-cell case and proved that the optimality is achieved in linear time in the number of UEs. After showing the complexity of load balancing in the general network scenario, an iterative algorithm for minimizing the maximum load, named JT-MinMax, is proposed. We evaluate JT-MinMax in a Heterogeneous Network (HetNet), though it is not limited to this type of scenarios. Numerical results demonstrate the significant performance improvement of JT-MinMax on min-max cell load, compared to the conventional non-JT solution where each UE is served by the cell with best received transmit signal.

Connected through hyperedge HE-1 (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"
    - "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"
    - "cooperative interference mitigation and handover management for heterogeneous cloud small cell networks"
    - "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-2 (induced by source paper "load optimization with user association in cooperative and load coupled lte networks"):
  with members:
    - "joint downlink base station association and power control for max min fairness computation and complexity"
    - "a stochastic geometry framework for analyzing pairwise cooperative cellular networks"
    - "optimal user association for massive mimo empowered ultra dense wireless networks"
    - "a tractable model for noncoherent joint transmission base station cooperation"
    - "what will 5g be"
    - "on association cells in random heterogeneous networks"
    - "analysis of cell load coupling for lte network planning and optimization"
    - "user association for load balancing in heterogeneous cellular networks"

Connected through hyperedge HE-3 (induced by source paper "optimizing power and user association for energy saving in load coupled cooperative lte"):
  with members:
    - "range assignment for power optimization in load coupled heterogeneous networks"
    - "power and load coupling in cellular networks for energy optimization"
    - "5g ultra dense cellular networks"
    - "5g wireless backhaul networks challenges and research advances"
    - "analysis of cell load coupling for lte network planning and optimization"

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)