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: "transmission capacity of wireless ad hoc networks with energy harvesting nodes"
  Abstract: Transmission capacity of an ad hoc wireless network is analyzed when each node of the network harvests energy from nature, e.g. solar, wind, vibration etc. Transmission capacity is the maximum allowable density of nodes, satisfying a per transmitter-receiver rate, and an outage probability constraint. Energy arrivals at each node are assumed to follow a Bernoulli distribution, and each node stores energy using an energy buffer/battery. For ALOHA medium access protocol (MAP), optimal transmission probability that maximizes the transmission capacity is derived as a function of the energy arrival distribution. Game theoretic analysis is also presented for ALOHA MAP, where each transmitter tries to maximize its own throughput, and symmetric Nash equilibrium is derived. For CSMA MAP, back-off probability and outage probability are derived in terms of input energy distribution, thereby characterizing the transmission capacity.

Connected through hyperedge HE-1 (induced by source paper "mimo with energy recycling"):
  with members:
    - "energy harvesting wireless communications a review of recent advances"
    - "throughput maximization for the gaussian relay channel with energy harvesting constraints"
    - "wireless information transfer with opportunistic energy harvesting"
    - "two hop communication with energy harvesting"
    - "transmission with energy harvesting nodes in fading wireless channels optimal policies"
    - "mimo broadcasting for simultaneous wireless information and power transfer"
    - "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-2 (induced by source paper "energy harvesting wireless communications a review of recent advances"):
  with members:
    - "renewable powered cellular networks energy field modeling and network coverage"
    - "dynamic compression transmission for energy harvesting multihop networks with correlated sources"
    - "constrained codes for joint energy and information transfer"
    - "energy harvesting broadband communication systems with processing energy cost"
    - "spatial throughput of mobile ad hoc networks powered by energy harvesting"
    - "energy cooperation in energy harvesting communications"
    - "interactive joint transfer of energy and information"
    - "opportunistic wireless energy harvesting in cognitive radio networks"

Connected through hyperedge HE-3 (induced by source paper "a stochastic geometry analysis of large scale cooperative wireless networks powered by energy harvesting"):
  with members:
    - "millimeter wave energy harvesting"
    - "on the stability of random multiple access with stochastic energy harvesting"
    - "energy harvesting wireless communications a review of recent advances"
    - "a stochastic geometry framework for analyzing pairwise cooperative cellular networks"
    - "spectral efficiency of dynamic coordinated beamforming a stochastic geometry approach"
    - "stability analysis of slotted aloha with opportunistic rf energy harvesting"
    - "a tractable model for noncoherent joint transmission base station cooperation"
    - "simultaneous information and energy transfer in large scale networks with without relaying"

Connected through hyperedge HE-4 (induced by source paper "simultaneous information and energy transfer in large scale networks with without relaying"):
  with members:
    - "power allocation strategies in energy harvesting wireless cooperative networks"
    - "outage probability in arbitrarily shaped finite wireless networks"
    - "spatial throughput of mobile ad hoc networks powered by energy harvesting"
    - "throughput maximization in wireless powered communication networks"
    - "cooperative energy harvesting networks with spatially random users"
    - "opportunistic wireless energy harvesting in cognitive radio networks"
    - "a learning theoretic approach to energy harvesting communication system optimization"
    - "relaying protocols for wireless energy harvesting and information processing"

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)