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: "awgn channel under time varying amplitude constraints with causal information at the transmitter"
  Abstract: We consider the classical AWGN channel where the channel input is constrained to an amplitude constraint that stochastically varies at each channel use, independent of the message. This is an abstraction of an energy harvesting transmitter where the code symbol energy at each channel use is determined by an exogenous energy arrival process and there is no battery for energy storage. At each channel use, an independent realization of the amplitude constraint process is observed by the transmitter causally. This scenario is a state-dependent channel with perfect causal state information at the transmitter. We derive the capacity of this channel using Shannon's coding scheme with causal state information. We prove that the code symbols must be selected from a finite set in the capacity achieving scheme, as in the case of Smith. We numerically study the binary on-off energy arrivals where the amplitude constraint is either zero or a non-zero constant.

Connected through hyperedge HE-1 (induced by source paper "rf based energy harvesting in decode and forward relaying systems ergodic and outage capacities"):
  with members:
    - "smart charging for electric vehicles a survey from the algorithmic perspective"
    - "distributed hybrid power state estimation under pmu sampling phase errors"
    - "distributed clock skew and offset estimation in wireless sensor networks asynchronous algorithm and convergence analysis"
    - "distributed power splitting for swipt in relay interference channels using game theory"
    - "on the efficiency of far field wireless power transfer"
    - "power allocation strategies in energy harvesting wireless cooperative networks"
    - "relaying protocols for wireless energy harvesting and information processing"
    - "wireless information transfer with opportunistic energy harvesting"

Connected through hyperedge HE-2 (induced by source paper "joint uplink and downlink coverage analysis of cellular based rf powered iot network"):
  with members:
    - "modeling and analysis of cellular networks using stochastic geometry a tutorial"
    - "a primer on cellular network analysis using stochastic geometry"
    - "enriched k tier hetnet model to enable the analysis of user centric small cell deployments"
    - "user point processes in cellular networks"
    - "millimeter wave energy harvesting"
    - "optimal policies for wireless networks with energy harvesting transmitters and receivers effects of decoding costs"
    - "performance analysis of ambient rf energy harvesting with repulsive point process modeling"
    - "energy harvesting wireless communications a review of recent advances"

Connected through hyperedge HE-3 (induced by source paper "capacity of a full duplex wirelessly powered communication system with self interference and processing cost"):
  with members:
    - "rf based energy harvesting in decode and forward relaying systems ergodic and outage capacities"
    - "capacity region of gaussian multiple access channels with energy harvesting and energy cooperation"
    - "capacity analysis of discrete energy harvesting channels"
    - "capacity of the energy harvesting gaussian mac"
    - "capacity of the two hop relay channel with wireless energy transfer from relay to source and energy transmission cost"
    - "weighted sum transmit power minimization for full duplex system with swipt and self energy recycling"
    - "capacity of the energy harvesting channel with a finite battery"
    - "energy recycling full duplex radios for next generation networks"

Connected through hyperedge HE-4 (induced by source paper "a decentralized optimization framework for energy harvesting devices"):
  with members:
    - "battery powered devices in wpcns"
    - "decentralized transmission policies for energy harvesting devices"
    - "optimal adaptive random multiaccess in energy harvesting wireless sensor networks"
    - "energy harvesting wireless communications a review of recent advances"
    - "markov decision processes with applications in wireless sensor networks a survey"
    - "joint transmission and energy transfer policies for energy harvesting devices with finite batteries"
    - "universally near optimal online power control for energy harvesting nodes"
    - "wireless networks with rf energy harvesting a contemporary survey"

Connected through hyperedge HE-5 (induced by source paper "capacity of the two hop relay channel with wireless energy transfer from relay to source and energy transmission cost"):
  with members:
    - "throughput analysis and optimization of wireless powered multiple antenna full duplex relay systems"
    - "a geometric analysis of the awgn channel with a sigma rho power constraint"
    - "wireless powered communication opportunities and challenges"
    - "rate maximization of decode and forward relaying systems with rf energy harvesting"
    - "optimal cooperative power allocation for energy harvesting enabled relay networks"
    - "wireless powered cooperative communications via a hybrid relay"
    - "multiple access fading channel with wireless power transfer and energy harvesting"
    - "power allocation strategies in energy harvesting wireless cooperative networks"

Connected through hyperedge HE-6 (induced by source paper "achievable secrecy rates of an energy harvesting device"):
  with members:
    - "energy harvesting wireless communications a review of recent advances"
    - "joint transmission and energy transfer policies for energy harvesting devices with finite batteries"
    - "energy harvesting for secure ofdma systems"
    - "robust beamforming for secure communication in systems with wireless information and power transfer"
    - "principles of physical layer security in multiuser wireless networks a survey"
    - "optimum transmission policies for battery limited energy harvesting nodes"
    - "information theoretic analysis of an energy harvesting communication system"
    - "optimal energy management policies for energy harvesting sensor nodes"

Connected through hyperedge HE-7 (induced by source paper "capacity analysis of discrete energy harvesting channels"):
  with members:
    - "capacity of the energy harvesting channel with a finite battery"
    - "can feedback increase the capacity of the energy harvesting channel"
    - "capacity of a post channel with and without feedback"
    - "a randomized approach to the capacity of finite state channels"
    - "binary energy harvesting channel with finite energy storage"
    - "optimum transmission policies for battery limited energy harvesting nodes"
    - "optimal packet scheduling in an energy harvesting communication system"
    - "extension of the blahut arimoto algorithm for maximizing directed information"

Connected through hyperedge HE-8 (induced by source paper "wirelessly powered communication networks with short packets"):
  with members:
    - "modeling and analysis of cellular networks using stochastic geometry a tutorial"
    - "finite blocklength achievable rates for energy harvesting awgn channels with infinite buffer"
    - "non asymptotic achievable rates for energy harvesting channels using save and transmit"
    - "on wirelessly powered communications with short packets"
    - "towards massive ultra reliable and low latency wireless communication with short packets"
    - "energy harvesting wireless communications a review of recent advances"
    - "asymptotic estimates in information theory with non vanishing error probabilities"
    - "powering the next billion devices with wi fi"

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)