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: "backscatter communications for wireless powered sensor networks with collision resolution"
  Abstract: Wireless powered backscatter communications is an attractive technology for next-generation low-powered sensor networks such as the Internet of Things. However, backscattering suffers from collisions due to multiple simultaneous transmissions and a dyadic backscatter channel, which greatly attenuate the received signal at the reader. This letter deals with backscatter communications in sensor networks from a large-scale point-of-view and considers various collision resolution techniques: directional antennas, ultra-narrow band transmissions and successive interference cancellation. We derive analytical expressions for the decoding probability and our results show the significant gains, which can be achieved from the aforementioned techniques.

Connected through hyperedge HE-1 (induced by source paper "coverage probability analysis under clustered ambient backscatter nodes"):
  with members:
    - "throughput maximization for ambient backscatter communication a reinforcement learning approach"
    - "cooperative ambient backscatter communications for green internet of things"
    - "traffic aware backscatter communications in wireless powered heterogeneous networks"
    - "3gpp inspired hetnet model using poisson cluster process sum product functionals and downlink coverage"
    - "wirelessly powered backscatter communications waveform design and snr energy tradeoff"
    - "backscatter multiplicative multiple access systems fundamental limits and practical design"
    - "ambient backscatter communications a contemporary survey"
    - "nearest neighbor and contact distance distributions for thomas cluster process"

Connected through hyperedge HE-2 (induced by source paper "low complexity random rotation based schemes for intelligent reflecting surfaces"):
  with members:
    - "intelligent reflecting surface versus decode and forward how large surfaces are needed to beat relaying"
    - "secure wireless communication via intelligent reflecting surface"
    - "weighted sum power maximization for intelligent reflecting surface aided swipt"
    - "a simple design of irs noma transmission"
    - "reconfigurable intelligent surface based index modulation a new beyond mimo paradigm for 6g"
    - "mimo assisted networks relying on large intelligent surfaces a stochastic geometry model"
    - "intelligent reflecting surface enhanced wireless network via joint active and passive beamforming"
    - "reconfigurable intelligent surfaces for energy efficiency in wireless communication"

Connected through hyperedge HE-3 (induced by source paper "optimal time scheduling for wireless powered backscatter communication networks"):
  with members:
    - "ambient backscatter communications a contemporary survey"
    - "backscatter communications for the internet of things a stochastic geometry approach"
    - "wireless powered communication opportunities and challenges"
    - "throughput maximization in wireless powered communication networks"
    - "decentralized delay optimal control for interference networks with limited renewable energy storage"

Connected through hyperedge HE-4 (induced by source paper "backscatter communications for the internet of things a stochastic geometry approach"):
  with members:
    - "backscatter communications for internet of things theory and applications"
    - "multistatic scatter radio sensor networks for extended coverage"
    - "joint uplink and downlink coverage analysis of cellular based rf powered iot network"
    - "modeling and analysis of cellular networks using stochastic geometry a tutorial"
    - "downlink and uplink decoupling in two tier heterogeneous networks with multi antenna base stations"
    - "modulation in the air backscatter communication over ambient ofdm carrier"
    - "waveform design for wireless power transfer"
    - "the internet of things new interoperability management and security challenges"

Connected through hyperedge HE-5 (induced by source paper "design of non orthogonal multiple access enhanced backscatter communication"):
  with members:
    - "spectral and energy efficient wireless powered iot networks noma or tdma"
    - "massive non orthogonal multiple access for cellular iot potentials and limitations"
    - "a survey on non orthogonal multiple access for 5g networks research challenges and future trends"
    - "inference from randomized transmissions by many backscatter sensors"
    - "modulation in the air backscatter communication over ambient ofdm carrier"
    - "backscatter communications for the internet of things a stochastic geometry approach"
    - "wireless powered communications with non orthogonal multiple access"
    - "full duplex backscatter interference networks based on time hopping spread spectrum"

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)