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: "mimo assisted networks relying on large intelligent surfaces a stochastic geometry model"
  Abstract: Large intelligent surfaces (LISs) constitute a promising performance enhancement for next-generation (NG) wireless networks in terms of enhancing both their spectrum efficiency (SE) and energy efficiency (EE). Hence we conceive a LIS-aided multiple-input multiple-output framework for providing wireless services to randomly roaming users and analyze its performance by utilizing stochastic geometry tools. As such, each user receives the superposed signals reflected by multiple LISs. We aim for serving multiple users by jointly designing the passive beamforming weight at the LISs and detection weight vectors at the users. As a benefit, the intra-cell interference imposed by the LISs can be suppressed. In an effort to evaluate the performance of the proposed framework, we first derive new channel statistics for characterizing the effective channel gains. Then, we derive closed-form expressions both for the outage probability and for the ergodic rate of users. For gleaning further insights, we investigate both the diversity orders of outage probability and the high signal-to-noise (SNR) slopes of ergodic rate. We also derive the SE and EE of the proposed framework. Our analytical results demonstrate that the specific fading environments encountered between the LISs and users have almost no impact on the diversity orders attainted. Numerical results are provided to confirm that: i) the high-SNR slope of the proposed framework is one; and ii) the SE and EE can be significantly enhanced by increasing the number of LISs.

Connected through hyperedge HE-1 (induced by source paper "mimo noma networks relying on reconfigurable intelligent surface a signal cancellation based design"):
  with members:
    - "intelligent reflecting surface assisted multiple access with user pairing noma or oma"
    - "enabling panoramic full angle reflection via aerial intelligent reflecting surface"
    - "performance analysis of intelligent reflecting surface assisted noma networks"
    - "miso wireless communication systems via intelligent reflecting surfaces"
    - "large intelligent surface antennas lisa making reflective radios smart"
    - "reflection probability in wireless networks with metasurface coated environmental objects an approach based on random spatial processes"
    - "capacity characterization for intelligent reflecting surface aided mimo communication"
    - "channel capacity optimization using reconfigurable intelligent surfaces in indoor mmwave environments"

Connected through hyperedge HE-2 (induced by source paper "capacity and optimal resource allocation for irs assisted multi user communication systems"):
  with members:
    - "large intelligent surface antennas lisa making reflective radios smart"
    - "robust and secure wireless communications via intelligent reflecting surfaces"
    - "capacity characterization for intelligent reflecting surface aided mimo communication"
    - "power efficient irs assisted noma"
    - "intelligent reflecting surface assisted non orthogonal multiple access"
    - "a vision of 6g wireless systems applications trends technologies and open research problems"
    - "a simple design of irs noma transmission"
    - "irs enhanced ofdma joint resource allocation and passive beamforming optimization"

Connected through hyperedge HE-3 (induced by source paper "spatial throughput characterization for intelligent reflecting surface aided multiuser system"):
  with members:
    - "intelligent reflecting surface versus decode and forward how large surfaces are needed to beat relaying"
    - "analysis and optimization of outage probability in multi intelligent reflecting surface assisted systems"
    - "capacity characterization for intelligent reflecting surface aided mimo communication"
    - "beamforming optimization for wireless network aided by intelligent reflecting surface with discrete phase shifts"
    - "towards smart and reconfigurable environment intelligent reflecting surface aided wireless network"
    - "intelligent reflecting surface enhanced ofdm channel estimation and reflection optimization"
    - "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-4 (induced by source paper "asymptotic max min sinr analysis of reconfigurable intelligent surface assisted miso systems"):
  with members:
    - "intelligent reflecting surface versus decode and forward how large surfaces are needed to beat relaying"
    - "large intelligent surface antennas lisa making reflective radios smart"
    - "asymptotic analysis of rzf over double scattering channels with mmse estimation"
    - "rfocus practical beamforming for small devices"
    - "resource allocation for secure irs assisted multiuser miso systems"
    - "enabling secure wireless communications via intelligent reflecting surfaces"
    - "enabling large intelligent surfaces with compressive sensing and deep learning"
    - "towards smart and reconfigurable environment intelligent reflecting surface aided wireless network"

Connected through hyperedge HE-5 (induced by source paper "channel estimation for intelligent reflecting surface assisted multiuser communications framework algorithms and analysis"):
  with members:
    - "miso wireless communication systems via intelligent reflecting surfaces"
    - "channel estimation for wireless communication systems assisted by large intelligent surfaces"
    - "cascaded channel estimation for large intelligent metasurface assisted massive mimo"
    - "capacity characterization for intelligent reflecting surface aided mimo communication"
    - "intelligent reflecting surface meets ofdm protocol design and rate maximization"
    - "enabling secure wireless communications via intelligent reflecting surfaces"
    - "channel estimation for intelligent reflecting surface assisted multiuser communications"
    - "intelligent reflecting surface enhanced ofdm channel estimation and reflection optimization"

Connected through hyperedge HE-6 (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"
    - "intelligent reflecting surface enhanced wireless network via joint active and passive beamforming"
    - "reconfigurable intelligent surfaces for energy efficiency in wireless communication"
    - "performance analysis of large intelligence surfaces liss asymptotic data rate and channel hardening effects"

Connected through hyperedge HE-7 (induced by source paper "multi user opportunistic beamforming using reconfigurable surfaces"):
  with members:
    - "enabling secure wireless communications via intelligent reflecting surfaces"
    - "asymptotic max min sinr analysis of reconfigurable intelligent surface assisted miso systems"
    - "intelligent reflecting surface enhanced wireless network via joint active and passive beamforming"
    - "reconfigurable intelligent surfaces for energy efficiency in wireless communication"
    - "intelligent reflecting surface enhanced wireless network joint active and passive beamforming design"
    - "increasing indoor spectrum sharing capacity using smart reflect array"
    - "optimized training design for wireless energy transfer"

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)