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: "on online energy harvesting in multiple access communication systems"
  Abstract: We investigate performance limits of a multiple access communication system with energy harvesting nodes where the utility function is taken to be the long-term average sum-throughput. We assume a causal structure for energy arrivals and study the problem in the continuous time regime. For this setting, we first characterize a storage dam model that captures the dynamics of a battery with energy harvesting and variable transmission power. Using this model, we next establish an upper bound on the throughput problem as a function of battery capacity. We also formulate a non-linear optimization problem to determine optimal achievable power policies for transmitters. Applying a calculus of variation technique, we then derive Euler-Lagrange equations as necessary conditions for optimum power policies in terms of a system of coupled partial integro-differential equations (PIDEs). Based on a Gauss-Seidel algorithm, we devise an iterative algorithm to solve these equations. We also propose a fixed-point algorithm for the symmetric multiple access setting in which the statistical descriptions of energy harvesters are identical. Along with the analysis and to support our iterative algorithms, comprehensive numerical results are also obtained.

Connected through hyperedge HE-1 (induced by source paper "age minimal transmission for energy harvesting sensors with finite batteries online policies"):
  with members:
    - "using erasure feedback for online timely updating with an energy harvesting sensor"
    - "online timely status updates with erasures for energy harvesting sensors"
    - "optimal status updating for an energy harvesting sensor with a noisy channel"
    - "coded status updates in an energy harvesting erasure channel"
    - "status updates in a multi stream m g 1 1 preemptive queue"
    - "age minimal online policies for energy harvesting sensors with random battery recharges"
    - "sending information through status updates"
    - "scheduling status updates to minimize age of information with an energy harvesting sensor"

Connected through hyperedge HE-2 (induced by source paper "energy harvesting networks with general utility functions near optimal online policies"):
  with members:
    - "finite horizon energy efficient scheduling with energy harvesting transmitters over fading channels"
    - "online power control optimization for wireless transmission with energy harvesting and storage"
    - "optimal offline and competitive online strategies for transmitter receiver energy harvesting"
    - "optimal policies for wireless networks with energy harvesting transmitters and receivers effects of decoding costs"
    - "iterative dynamic water filling for fading multiple access channels with energy harvesting"
    - "energy harvesting networks with energy cooperation procrastinating policies"
    - "universally near optimal online power control for energy harvesting nodes"
    - "energy harvesting broadband communication systems with processing energy cost"

Connected through hyperedge HE-3 (induced by source paper "online power control for block i i d energy harvesting channels"):
  with members:
    - "communication over a time correlated channel with an energy harvesting transmitter"
    - "on achievable rates of awgn energy harvesting channels with block energy arrival and non vanishing error probabilities"
    - "capacity analysis of discrete energy harvesting channels"
    - "capacity of the energy harvesting gaussian mac"
    - "capacity of the energy harvesting channel with a finite battery"
    - "universally near optimal online power control for energy harvesting nodes"
    - "closed form delay optimal power control for energy harvesting wireless system with finite energy storage"
    - "near optimal energy control and approximate capacity of energy harvesting communication"

Connected through hyperedge HE-4 (induced by source paper "optimal power control for transmitting correlated sources with energy harvesting constraints"):
  with members:
    - "optimized sensor collaboration for estimation of temporally correlated parameters"
    - "online learning schemes for power allocation in energy harvesting communications"
    - "energy harvesting wireless communications a review of recent advances"
    - "near optimal energy control and approximate capacity of energy harvesting communication"
    - "the binary energy harvesting channel with a unit sized battery"
    - "optimal energy allocation for wireless communications with energy harvesting constraints"
    - "transmission with energy harvesting nodes in fading wireless channels optimal policies"
    - "estimation diversity and energy efficiency in distributed sensing"

Connected through hyperedge HE-5 (induced by source paper "performance analysis of energy buffer aided wireless powered communication"):
  with members:
    - "wireless powered communication networks an overview"
    - "resource allocation techniques for wireless powered communication networks with energy storage constraint"
    - "a discrete time switching protocol for wireless powered communications with energy accumulation"
    - "on off transmission policy for wireless powered communication with energy storage"
    - "throughput maximization in wireless powered communication networks"
    - "wireless information and power transfer architecture design and rate energy tradeoff"

Connected through hyperedge HE-6 (induced by source paper "capacity of the energy harvesting gaussian mac"):
  with members:
    - "capacity of the energy harvesting channel with a finite battery"
    - "capacity of the awgn channel with random battery recharges"
    - "universally near optimal online power control for energy harvesting nodes"
    - "binary energy harvesting channel with finite energy storage"
    - "awgn channel under time varying amplitude constraints with causal information at the transmitter"

Connected through hyperedge HE-7 (induced by source paper "on lossy joint source channel coding in energy harvesting communication systems"):
  with members:
    - "source channel coding under energy delay and buffer constraints"
    - "dynamic compression transmission for energy harvesting multihop networks with correlated sources"
    - "delay optimal scheduling for energy harvesting based communications"
    - "throughput maximization for the gaussian relay channel with energy harvesting constraints"
    - "energy neutral source channel coding with battery and memory size constraints"
    - "optimal strategies for communication and remote estimation with an energy harvesting sensor"
    - "energy management policies for energy neutral source channel coding"
    - "communicating using an energy harvesting transmitter optimum policies under energy storage losses"

Connected through hyperedge HE-8 (induced by source paper "capacity of the energy harvesting channel with a finite battery"):
  with members:
    - "can feedback increase the capacity of the energy harvesting channel"
    - "capacity of the awgn channel with random battery recharges"
    - "universally near optimal online power control for energy harvesting nodes"
    - "near optimal energy control and approximate capacity of energy harvesting communication"
    - "a learning theoretic approach to energy harvesting communication system optimization"
    - "binary energy harvesting channel with finite energy storage"
    - "capacity of fading gaussian channel with an energy harvesting sensor node"
    - "transmission with energy harvesting nodes in fading wireless channels optimal policies"

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)