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: "power allocation for energy harvesting transmitter with causal information"
  Abstract: We consider power allocation for an access-controlled transmitter with energy harvesting capability based on causal observations of the channel fading state. We assume that the system operates in a time-slotted fashion and the channel gain in each slot is a random variable which is independent across slots. Further, we assume that the transmitter is solely powered by a renewable energy source and the energy harvesting process can practically be predicted. With the additional access control for the transmitter and the maximum power constraint, we formulate the stochastic optimization problem of maximizing the achievable rate as a Markov decision process (MDP) with continuous state. To effi- ciently solve the problem, we define an approximate value function based on a piecewise linear fit in terms of the battery state. We show that with the approximate value function, the update in each iteration consists of a group of convex problems with a continuous parameter. Moreover, we derive the optimal solution to these con- vex problems in closed-form. Further, we propose power allocation algorithms for both the finite- and infinite-horizon cases, whose computational complexity is significantly lower than that of the standard discrete MDP method but with improved performance. Extension to the case of a general payoff function and imperfect energy prediction is also considered. Finally, simulation results demonstrate that the proposed algorithms closely approach the optimal performance.

Connected through hyperedge HE-1 (induced by source paper "finite horizon throughput maximization and sensing optimization in wireless powered devices over fading channels"):
  with members:
    - "a survey on mobile edge computing the communication perspective"
    - "a tutorial on thompson sampling"
    - "computation rate maximization for wireless powered mobile edge computing"
    - "non orthogonal multiple access schemes in wireless powered communication networks"
    - "user cooperation for enhanced throughput fairness in wireless powered communication networks"
    - "battery powered devices in wpcns"
    - "on optimal policies in full duplex wireless powered communication networks"
    - "an adaptive transmission protocol for wireless powered cooperative communications"

Connected through hyperedge HE-2 (induced by source paper "grid energy consumption and qos tradeoff in hybrid energy supply wireless networks"):
  with members:
    - "transmit power minimization for wireless networks with energy harvesting relays"
    - "energy harvesting wireless communications a review of recent advances"
    - "comp meets smart grid a new communication and energy cooperation paradigm"
    - "energy harvesting small cell networks feasibility deployment and operation"
    - "a lyapunov optimization approach for green cellular networks with hybrid energy supplies"
    - "cost minimization for fading channels with energy harvesting and conventional energy"
    - "power allocation for conventional and buffer aided link adaptive relaying systems with energy harvesting nodes"
    - "multiuser joint energy bandwidth allocation with energy harvesting part i optimum algorithm multiple point to point channels"

Connected through hyperedge HE-3 (induced by source paper "optimal transmission policies for multi hop energy harvesting systems"):
  with members:
    - "on optimal online algorithms for energy harvesting systems with continuous energy and data arrivals"
    - "iterative dynamic water filling for fading multiple access channels with energy harvesting"
    - "universally near optimal online power control for energy harvesting nodes"
    - "energy harvesting two hop communication networks"
    - "design and characterization of a full duplex multiantenna system for wifi networks"
    - "optimal scheduling and power allocation for two hop energy harvesting communication systems"
    - "throughput optimal policies for energy harvesting wireless transmitters with non ideal circuit power"
    - "two hop communication with energy harvesting"

Connected through hyperedge HE-4 (induced by source paper "optimal energy allocation for delay constrained traffic over fading multiple access channels"):
  with members:
    - "iterative dynamic water filling for fading multiple access channels with energy harvesting"
    - "finite snr bounds on the sum rate capacity of rayleigh block fading multiple access channels with no a priori csi"
    - "on the capacity of multiple access and broadcast fading channels with full channel state information at low snr"
    - "energy efficient scheduling of delay constrained traffic over fading channels"

Connected through hyperedge HE-5 (induced by source paper "energy harvesting systems with continuous energy and data arrivals the optimal offline and a heuristic online algorithms"):
  with members:
    - "optimal offline and competitive online strategies for transmitter receiver energy harvesting"
    - "optimal power and rate allocation in the degraded gaussian relay channel with energy harvesting nodes"
    - "energy cooperation in energy harvesting communications"
    - "throughput maximization for the gaussian relay channel with energy harvesting constraints"
    - "optimal scheduling and power allocation for two hop energy harvesting communication systems"
    - "throughput optimal policies for energy harvesting wireless transmitters with non ideal circuit power"
    - "optimal transmission policies for energy harvesting two hop networks"
    - "broadcasting with an energy harvesting rechargeable transmitter"

Connected through hyperedge HE-6 (induced by source paper "a lyapunov optimization approach for green cellular networks with hybrid energy supplies"):
  with members:
    - "energy harvesting wireless communications a review of recent advances"
    - "comp meets smart grid a new communication and energy cooperation paradigm"
    - "energy harvesting small cell networks feasibility deployment and operation"
    - "cost minimization for fading channels with energy harvesting and conventional energy"
    - "cooperation and storage tradeoffs in power grids with renewable energy resources"
    - "base station sleeping and resource allocation in renewable energy powered cellular networks"
    - "throughput and energy efficiency analysis of small cell networks with multi antenna base stations"
    - "throughput maximization for the gaussian relay channel with energy harvesting constraints"

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)