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: "distributed transmit beamforming using feedback control"
  Abstract: A simple feedback control algorithm is presented for distributed beamforming in a wireless network. A network of wireless sensors that seek to cooperatively transmit a common message signal to a Base Station (BS) is considered. In this case, it is well-known that substantial energy efficiencies are possible by using distributed beamforming. The feedback algorithm is shown to achieve the carrier phase coherence required for beamforming in a scalable and distributed manner. In the proposed algorithm, each sensor independently makes a random adjustment to its carrier phase. Assuming that the BS is able to broadcast one bit of feedback each timeslot about the change in received signal to noise ratio (SNR), the sensors are able to keep the favorable phase adjustments and discard the unfavorable ones, asymptotically achieving perfect phase coherence. A novel analytical model is derived that accurately predicts the convergence rate. The analytical model is used to optimize the algorithm for fast convergence and to establish the scalability of the algorithm.

Connected through hyperedge HE-1 (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-2 (induced by source paper "coherent communications in self organizing networks with distributed beamforming"):
  with members:
    - "channel estimation and hybrid precoding for millimeter wave cellular systems"
    - "sparse beamforming and user centric clustering for downlink cloud radio access network"
    - "distributed stochastic power control in ad hoc networks a nonconvex optimization case"
    - "collaborative beamforming for distributed wireless ad hoc sensor networks"

Connected through hyperedge HE-3 (induced by source paper "some aspects of physical prototyping in pervasive computing"):
  with members:
    - "investigation of indoor localization with ambient fm radio stations"
    - "novelty and collective attention"
    - "collaborative beamforming for distributed wireless ad hoc sensor networks"

Connected through hyperedge HE-4 (induced by source paper "distributed wireless power transfer with energy feedback"):
  with members:
    - "a general design framework for mimo wireless energy transfer with limited feedback"
    - "wireless powered communication networks an overview"
    - "some new research trends in wirelessly powered communications"
    - "wireless powered communication opportunities and challenges"
    - "distributed energy beamforming with one bit feedback"
    - "collaborative wireless energy and information transfer in interference channel"
    - "optimized training for net energy maximization in multi antenna wireless energy transfer over frequency selective channel"
    - "simultaneous wireless information and power transfer in modern communication systems"

Connected through hyperedge HE-5 (induced by source paper "a scalable architecture for distributed receive beamforming analysis and experimental demonstration"):
  with members:
    - "ergodic capacity analysis of amplify and forward mimo dual hop systems"
    - "opportunistic collaborative beamforming with one bit feedback"
    - "network beamforming using relays with perfect channel information"
    - "asymptotic analysis of amplify and forward relaying in a parallel mimo relay network"

Connected through hyperedge HE-6 (induced by source paper "wireless powered communication opportunities and challenges"):
  with members:
    - "secrecy wireless information and power transfer in fading wiretap channel"
    - "throughput optimization for massive mimo systems powered by wireless energy transfer"
    - "collaborative wireless energy and information transfer in interference channel"
    - "robust beamforming for secure communication in systems with wireless information and power transfer"
    - "recent advances in joint wireless energy and information transfer"
    - "user cooperation in wireless powered communication networks"
    - "optimal resource allocation in full duplex wireless powered communication network"
    - "energy beamforming with one bit feedback"

Connected through hyperedge HE-7 (induced by source paper "distributed energy beamforming with one bit feedback"):
  with members:
    - "a general design framework for mimo wireless energy transfer with limited feedback"
    - "wireless powered communication networks an overview"
    - "wireless powered communication opportunities and challenges"
    - "optimized training for net energy maximization in multi antenna wireless energy transfer over frequency selective channel"
    - "energy beamforming with one bit feedback"
    - "wireless networks with rf energy harvesting a contemporary survey"
    - "optimized training design for wireless energy transfer"
    - "dynamic resource allocation for multiple antenna wireless power transfer"

Connected through hyperedge HE-8 (induced by source paper "deterministic differential search algorithm for distributed sensor relay networks"):
  with members:
    - "a bio inspired robust adaptive random search algorithm for distributed beamforming"
    - "a general proof of convergence for adaptive distributed beamforming schemes"
    - "perturbation based distributed beamforming for wireless relay networks"
    - "a random search framework for convergence analysis of distributed beamforming with feedback"

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)