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: "capacity of fading gaussian channel with an energy harvesting sensor node"
  Abstract: Network life time maximization is becoming an important design goal in wireless sensor networks. Energy harvesting has recently become a preferred choice for achieving this goal as it provides near perpetual operation. We study such a sensor node with an energy harvesting source and compare various architectures by which the harvested energy is used. We find its Shannon capacity when it is transmitting its observations over a fading AWGN channel with perfect/no channel state information provided at the transmitter. We obtain an achievable rate when there are inefficiencies in energy storage and the capacity when energy is spent in activities other than transmission.

Connected through hyperedge HE-1 (induced by source paper "on the energy and data storage management in energy harvesting wireless communications"):
  with members:
    - "robust design of ac computing enabled receiver architecture for swipt networks"
    - "optimal policies for wireless networks with energy harvesting transmitters and receivers effects of decoding costs"
    - "energy harvesting wireless communications a review of recent advances"
    - "delay optimal scheduling for energy harvesting based communications"
    - "optimal scheduling for energy harvesting transmitters with hybrid energy storage"
    - "optimal energy allocation for wireless communications with energy harvesting constraints"
    - "a general framework for the optimization of energy harvesting communication systems with battery imperfections"
    - "transmission with energy harvesting nodes in fading wireless channels optimal policies"

Connected through hyperedge HE-2 (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-3 (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"
    - "on online energy harvesting in multiple access communication systems"
    - "a learning theoretic approach to energy harvesting communication system optimization"
    - "binary energy harvesting channel with finite energy storage"
    - "transmission with energy harvesting nodes in fading wireless channels optimal policies"

Connected through hyperedge HE-4 (induced by source paper "universally near optimal online power control for energy harvesting nodes"):
  with members:
    - "capacity of the energy harvesting channel with a finite battery"
    - "capacity of the awgn channel with random battery recharges"
    - "near optimal energy control and approximate capacity of energy harvesting communication"
    - "on online energy harvesting in multiple access communication systems"
    - "a learning theoretic approach to energy harvesting communication system optimization"
    - "throughput optimal policies for energy harvesting wireless transmitters with non ideal circuit power"
    - "optimal energy allocation for wireless communications with energy harvesting constraints"
    - "transmission with energy harvesting nodes in fading wireless channels optimal policies"

Connected through hyperedge HE-5 (induced by source paper "capacity of the awgn channel with random battery recharges"):
  with members:
    - "capacity of the energy harvesting channel with a finite battery"
    - "a learning theoretic approach to energy harvesting communication system optimization"
    - "binary energy harvesting channel with finite energy storage"
    - "transmission with energy harvesting nodes in fading wireless channels optimal policies"
    - "optimum transmission policies for battery limited energy harvesting nodes"
    - "basic performance limits and tradeoffs in energy harvesting sensor nodes with finite data and energy storage"
    - "optimal packet scheduling in an energy harvesting communication system"

Connected through hyperedge HE-6 (induced by source paper "cost minimization for fading channels with energy harvesting and conventional energy"):
  with members:
    - "full duplex wireless powered communication network with energy causality"
    - "throughput maximization for the gaussian relay channel with energy harvesting constraints"
    - "energy efficient resource allocation in ofdma systems with hybrid energy harvesting base station"
    - "energy cooperation in cellular networks with renewable powered base stations"
    - "optimal scheduling for energy harvesting transmitters with hybrid energy storage"
    - "wireless information transfer with opportunistic energy harvesting"
    - "wireless information and power transfer architecture design and rate energy tradeoff"
    - "optimal save then transmit protocol for energy harvesting wireless transmitters"

Connected through hyperedge HE-7 (induced by source paper "optimal scheduling and power allocation for two hop energy harvesting communication systems"):
  with members:
    - "throughput maximization for the gaussian relay channel with energy harvesting constraints"
    - "throughput optimal policies for energy harvesting wireless transmitters with non ideal circuit power"
    - "training optimization for energy harvesting communication systems"
    - "optimal power allocation for outage minimization in fading channels with energy harvesting constraints"
    - "optimal transmission policies for energy harvesting two hop networks"
    - "broadcasting with an energy harvesting rechargeable transmitter"
    - "sum rate optimal power policies for energy harvesting transmitters in an interference channel"
    - "two hop communication with energy harvesting"

Connected through hyperedge HE-8 (induced by source paper "awgn channel capacity of energy harvesting transmitters with a finite energy buffer"):
  with members:
    - "energy management policies for energy neutral source channel coding"
    - "information capacity of an energy harvesting sensor node"
    - "awgn channel under time varying amplitude constraints with causal information at the transmitter"
    - "information capacity of energy harvesting sensor nodes"
    - "basic performance limits and tradeoffs in energy harvesting sensor nodes with finite data and energy storage"
    - "information theoretic analysis of an energy harvesting communication system"

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)