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 "transmit precoding for interference exploitation in the underlay cognitive radio z channel"):
  Abstract: This paper introduces novel transmit precoding approaches for the cognitive radio (CR) Z-channel. The proposed transmission schemes exploit noncausal information about the interference at the secondary base station to redesign the CR precoding optimization problem. This is done with the objective to improve the quality of service (QoS) of secondary users by taking advantage of constructive interference in the secondary link. The precoders are designed to minimize the worst secondary user's symbol error probability (SEP) under constraints on the instantaneous total transmit power, and the power of the instantaneous interference in the primary link. The problem is formulated as a bivariate probabilistic constrained programming (BPCP) problem. We show that the BPCP problem can be transformed for practical SEPs into a convex optimization problem that can be solved, for example, by the barrier method. A computationally efficient tight approximate approach is also developed to compute the near-optimal solutions. Simulation results and analysis show that the average computational complexity per downlink frame of the proposed approximate problem is comparable to that of the conventional CR downlink beamforming problem. In addition, both the proposed methods offer significant performance improvements as compared to the conventional CR downlink beamforming, while guaranteeing the QoS of primary users on an instantaneous basis, in contrast to the average QoS guarantees of conventional beamformers.

Includes members:
  Member "energy efficient symbol level precoding in multiuser miso based on relaxed detection region":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "one bit precoding and constellation range design for massive mimo with qam signaling")
  Member "secure m psk communication via directional modulation":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "an overview of physical layer security with finite alphabet signaling")
  Member "directional modulation via symbol level precoding a way to enhance security":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "rethinking secure precoding via interference exploitation a smart eavesdropper perspective")
  Member "constructive interference through symbol level precoding for multi level modulation":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "symbol level and multicast precoding for multiuser multiantenna downlink a survey classification and challenges")
  Member "constructive multiuser interference in symbol level precoding for the miso downlink channel":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "one bit precoding and constellation range design for massive mimo with qam signaling")
  Member "exploiting known interference as green signal power for downlink beamforming optimization":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "rethinking secure precoding via interference exploitation a smart eavesdropper perspective")
  Member "rethinking the role of interference in wireless networks":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "interference prediction in wireless networks stochastic geometry meets recursive filtering")
  Member "dynamic resource allocation in cognitive radio networks":
    also connected through other hyperedges:
      - Hyperedge HE-8 (induced by source paper "joint power control and passive beamforming in irs assisted spectrum sharing")

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)