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: "on media based modulation using rf mirrors"
  Abstract: Media-based modulation (MBM) is a recently proposed modulation scheme which uses radio frequency (RF) mirrors at the transmit antenna(s) in order to create different channel fade realizations based on their ON/OFF status. These complex fade realizations constitute the modulation alphabet. MBM has the advantage of increased spectral efficiency and performance. In this paper, we investigate the performance of some physical layer techniques when applied to MBM. Particularly, we study the performance of $i)$ MBM with generalized spatial modulation (GSM), $ii)$ MBM with mirror activation pattern (MAP) selection based on an Euclidean distance (ED) based metric, and $iii)$ MBM with feedback based phase compensation and constellation rotation. Our results show that, for the same spectral efficiency, GSM-MBM can achieve better performance compared to MIMO-MBM. Also, it is found that MBM with ED-based MAP selection results in improved bit error performance, and that phase compensation and MBM constellation rotation increases the ED between the MBM constellation points and improves the performance significantly. We also analyze the diversity orders achieved by the ED-based MAP selection scheme and the phase compensation and constellation rotation (PC-CR) scheme. The diversity orders predicted by the analysis are validated through simulations.

Connected through hyperedge HE-1 (induced by source paper "reconfigurable intelligent surface based index modulation a new beyond mimo paradigm for 6g"):
  with members:
    - "cascaded channel estimation for large intelligent metasurface assisted massive mimo"
    - "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"
    - "energy efficient multi user miso communication using low resolution large intelligent surfaces"
    - "achievable rate maximization by passive intelligent mirrors"
    - "beamforming optimization for intelligent reflecting surface with discrete phase shifts"
    - "reconfigurable intelligent surfaces for energy efficiency in wireless communication"

Connected through hyperedge HE-2 (induced by source paper "the interference channel revisited aligning interference by adjusting receive antenna separation"):
  with members:
    - "an overview of signal processing techniques for millimeter wave mimo systems"
    - "feasibility of interference alignment for the mimo interference channel"
    - "real interference alignment exploiting the potential of single antenna systems"
    - "performance analysis and optimization for interference alignment over mimo interference channels with limited feedback"
    - "five disruptive technology directions for 5g"
    - "csi feedback reduction for mimo interference alignment"
    - "the approximate sum capacity of the symmetric gaussian k user interference channel"
    - "on feasibility of interference alignment in mimo interference networks"

Connected through hyperedge HE-3 (induced by source paper "media based modulation for future wireless systems a tutorial"):
  with members:
    - "space time channel modulation"
    - "index modulation techniques for 5g wireless networks"
    - "media based mimo a new frontier in wireless communications"

Connected through hyperedge HE-4 (induced by source paper "performance of media based modulation in multi user networks"):
  with members:
    - "media based mimo a new frontier in wireless communications"
    - "what will 5g be"

Connected through hyperedge HE-5 (induced by source paper "multidimensional index modulation in wireless communications"):
  with members:
    - "index modulation techniques for 5g wireless networks"
    - "on multiple input multiple output ofdm with index modulation for next generation wireless networks"
    - "on the capacity and performance of generalized spatial modulation"
    - "generalized spatial modulation in large scale multiuser mimo systems"
    - "subspace pursuit for compressive sensing signal reconstruction"

Connected through hyperedge HE-6 (induced by source paper "space time channel modulation"):
  with members:
    - "index modulation techniques for 5g wireless networks"
    - "on multiple input multiple output ofdm with index modulation for next generation wireless networks"
    - "media based mimo a new frontier in wireless communications"

Connected through hyperedge HE-7 (induced by source paper "multiuser media based modulation for massive mimo systems"):
  with members:
    - "generalized spatial modulation in large scale multiuser mimo systems"
    - "media based mimo a new frontier in wireless communications"
    - "a orthogonal matching pursuit best first search for compressed sensing signal recovery"
    - "subspace pursuit for compressive sensing signal reconstruction"

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)