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 "full diversity precoding design of bit interleaved coded multiple beamforming with orthogonal frequency division multiplexing"):
  Abstract: Multi-Input Multi-Output (MIMO) techniques have been incorporated with Orthogonal Frequency Division Multiplexing (OFDM) for broadband wireless communication systems. 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 employed to provide both spatial diversity and multipath diversity, making it an important technique. In our previous work, the subcarrier grouping technique was applied to combat the negative effect of subcarrier correlation. It was also proved that full diversity of BICMB-OFDM with Subcarrier Grouping (BICMB-OFDM-SG) can be achieved within the condition RcSL ≤ 1, where Rc, S, and L are the code rate, the number of parallel streams at each subcarrier, and the number of channel taps, respectively. The full diversity condition implies that if S increases, Rc may have to decrease to maintain full diversity. As a result, increasing the number of parallel streams may not improve the total transmission rate. In this paper, the precoding technique is employed to overcome the full diversity restriction issue of RcSL ≤ 1 for BICMB-OFDM-SG. First, the diversity analysis of precoded BICMB-OFDM-SG is carried out. Then, the full-diversity precoding design is developed with the minimum achievable decoding complexity.

Includes members:
  Member "diversity analysis of bit interleaved coded multiple beamforming with orthogonal frequency division multiplexing":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "linear precoding for mimo channels with qam constellations and reduced complexity")
  Member "multiple beamforming with perfect coding":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "diversity analysis 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 "diversity analysis of bit interleaved coded multiple beamforming with orthogonal frequency division multiplexing")
  Member "constellation precoded beamforming":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "diversity analysis of bit interleaved coded multiple beamforming with orthogonal frequency division multiplexing")
  Member "constellation precoded multiple beamforming":
    also connected through other hyperedges:
      - Hyperedge HE-5 (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-6 (induced by source paper "diversity analysis 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-7 (induced by source paper "diversity analysis of bit interleaved coded multiple beamforming with orthogonal frequency division multiplexing")
  Member "reduced complexity sphere decoding for square qam via a new lattice representation":
    also connected through other hyperedges:
      - Hyperedge HE-8 (induced by source paper "multiple beamforming with perfect coding")

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)