human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "diversity analysis of bit interleaved coded multiple beamforming with orthogonal frequency division multiplexing"):
  Abstract: For broadband wireless communication systems, Orthogonal Frequency Division Multiplexing (OFDM) has been combined with Multi-Input Multi-Output (MIMO) techniques. Bit-Interleaved Coded Multiple Beamforming (BICMB) can achieve both spatial diversity and spatial multiplexing for flat fading MIMO channels. For frequency selective fading MIMO channels, BICMB with OFDM (BICMB-OFDM) can be applied to achieve both spatial diversity and multipath diversity, making it an important technique. However, analyzing the diversity of BICMB-OFDM is a challenging problem. In this paper, the diversity analysis of BICMB-OFDM is carried out. First, the maximum achievable diversity is derived and a full diversity condition RcSL ≤ 1 is proved, where Rc, S, and L are the code rate, the number of parallel steams transmitted at each subcarrier, and the number of channel taps, respectively. Then, the performance degradation due to the correlation among subcarriers is investigated. Finally, the subcarrier grouping technique is employed to combat the performance degradation and provide multi-user compatibility.

Includes members:
  Member "full diversity precoding design of bit interleaved coded multiple beamforming with orthogonal frequency division multiplexing":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "a survey on mimo transmission with discrete input signals technical challenges advances and future trends")
  Member "multiple beamforming with perfect coding":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "full diversity precoding design of bit interleaved coded multiple beamforming with orthogonal frequency division multiplexing")
  Member "bit interleaved coded multiple beamforming with perfect coding":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "full diversity precoding design of bit interleaved coded multiple beamforming with orthogonal frequency division multiplexing")
  Member "mimo networks the effects of interference":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "how much bandpass filtering is required in massive mimo base stations")
  Member "constellation precoded beamforming":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "full diversity precoding design of bit interleaved coded multiple beamforming with orthogonal frequency division multiplexing")
  Member "constellation precoded multiple beamforming":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "a survey on mimo transmission with discrete input signals technical challenges advances and future trends")
  Member "bit interleaved coded multiple beamforming with constellation precoding":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "full diversity precoding design of bit interleaved coded multiple beamforming with orthogonal frequency division multiplexing")
  Member "diversity analysis of bit interleaved coded multiple beamforming":
    also connected through other hyperedges:
      - Hyperedge HE-8 (induced by source paper "full diversity precoding design of bit interleaved coded multiple beamforming with orthogonal frequency division multiplexing")

Question: Please tell me which class the source paper 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)