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: "closed form delay optimal power control for energy harvesting wireless system with finite energy storage"
  Abstract: In this paper, we consider delay-optimal power control for an energy harvesting wireless system with finite energy storage. The wireless system is powered solely by a renewable energy source with bursty data arrivals, and is characterized by a data queue and an energy queue. We consider a delay-optimal power control problem and formulate an infinite horizon average cost Markov decision process (MDP). To deal with the curse of dimensionality, we introduce a virtual continuous time system and derive closed-form approximate priority functions for the discrete time MDP at various operating regimes. Based on the approximation, we obtain an online power control solution which is adaptive to the channel state information as well as the data and energy queue state information. The derived power control solution has a multi-level water-filling structure, where the water level is determined jointly by the data and energy queue lengths. In the simulations, we show that the proposed scheme has significant performance gain compared with various baselines.

Connected through hyperedge HE-1 (induced by source paper "non asymptotic achievable rates for gaussian energy harvesting channels best effort and save and transmit"):
  with members:
    - "on achievable rates of awgn energy harvesting channels with block energy arrival and non vanishing error probabilities"
    - "online power control for block i i d energy harvesting channels"
    - "capacity analysis of discrete energy harvesting channels"
    - "finite blocklength achievable rates for energy harvesting awgn channels with infinite buffer"
    - "non asymptotic achievable rates for energy harvesting channels using save and transmit"
    - "capacity of the energy harvesting channel with a finite battery"
    - "the binary energy harvesting channel with a unit sized battery"

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"
    - "near optimal energy control and approximate capacity of energy harvesting communication"
    - "on online energy harvesting in multiple access communication systems"

Connected through hyperedge HE-3 (induced by source paper "on achievable rates of awgn energy harvesting channels with block energy arrival and non vanishing error probabilities"):
  with members:
    - "finite blocklength achievable rates for energy harvesting awgn channels with infinite buffer"
    - "non asymptotic achievable rates for energy harvesting channels using save and transmit"
    - "capacity of the energy harvesting channel with a finite battery"
    - "energy harvesting wireless communications a review of recent advances"
    - "asymptotic estimates in information theory with non vanishing error probabilities"
    - "near optimal energy control and approximate capacity of energy harvesting communication"
    - "second order coding rates for channels with state"
    - "information spectrum approach to second order coding rate in channel coding"

Connected through hyperedge HE-4 (induced by source paper "recent advances in cloud radio access networks system architectures key techniques and open issues"):
  with members:
    - "fronthaul compression and precoding design for c rans over ergodic fading channels"
    - "optimal fronthaul quantization for cloud radio positioning"
    - "inter tier interference suppression in heterogeneous cloud radio access networks"
    - "contract based interference coordination in heterogeneous cloud radio access networks"
    - "are heterogeneous cloud based radio access networks cost effective"
    - "energy efficient resource assignment and power allocation in heterogeneous cloud radio access networks"
    - "cooperative interference mitigation and handover management for heterogeneous cloud small cell networks"
    - "fronthaul constrained cloud radio access networks insights and challenges"

Connected through hyperedge HE-5 (induced by source paper "offline delay optimal transmission for energy harvesting nodes"):
  with members:
    - "energy harvesting wireless communications a review of recent advances"
    - "event trigger based robust optimal control for energy harvesting transmitter"
    - "energy harvesting broadband communication systems with processing energy cost"
    - "a learning theoretic approach to energy harvesting communication system optimization"
    - "transmission with energy harvesting nodes in fading wireless channels optimal policies"
    - "optimum transmission policies for battery limited energy harvesting nodes"
    - "optimal packet scheduling in an energy harvesting communication system"
    - "optimal energy management policies for energy harvesting sensor nodes"

Connected through hyperedge HE-6 (induced by source paper "event trigger based robust optimal control for energy harvesting transmitter"):
  with members:
    - "a learning theoretic approach to energy harvesting communication system optimization"
    - "on the delay throughput tradeoff in distributed wireless networks"
    - "energy efficient relaying over multiple slots with causal csi"
    - "broadcasting with an energy harvesting rechargeable transmitter"
    - "sum rate optimal power policies for energy harvesting transmitters in an interference channel"
    - "optimal energy allocation for wireless communications with energy harvesting constraints"
    - "competitive ratio analysis of online algorithms to minimize data transmission time in energy harvesting communication system"
    - "a general framework for the optimization of energy harvesting communication systems with battery imperfections"

Connected through hyperedge HE-7 (induced by source paper "energy harvesting wireless sensor networks delay analysis considering energy costs of sensing and transmission"):
  with members:
    - "wireless powered relays in cooperative communications time switching relaying protocols and throughput analysis"
    - "cutting last wires for mobile communication by microwave power transfer"
    - "simultaneous wireless information and power transfer in modern communication systems"
    - "near optimal energy control and approximate capacity of energy harvesting communication"
    - "wireless networks with rf energy harvesting a contemporary survey"
    - "power allocation strategies in energy harvesting wireless cooperative networks"
    - "on off transmission policy for wireless powered communication with energy storage"
    - "throughput maximization for the gaussian relay channel with energy harvesting constraints"

Connected through hyperedge HE-8 (induced by source paper "on the tradeoff between energy harvesting and caching in wireless networks"):
  with members:
    - "optimal cooperative power allocation for energy harvesting enabled relay networks"
    - "base station sleeping and resource allocation in renewable energy powered cellular networks"
    - "energy efficient resource allocation in ofdma systems with hybrid energy harvesting base station"
    - "fundamental limits of distributed caching in d2d wireless networks"
    - "fundamentals of heterogeneous cellular networks with energy harvesting"
    - "femtocaching and device to device collaboration a new architecture for wireless video distribution"
    - "femtocaching wireless video content delivery through distributed caching helpers"
    - "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)