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 "mimo z channel interference management"):
  Abstract: MIMO Z Channel is investigated in this paper. We focus on how to tackle the interference when different users try to send their codewords to their corresponding receivers while only one user will cause interference to the other. We assume there are two transmitters and two receivers each with two antennas. We propose a strategy to remove the interference while allowing different users transmit at the same time. Our strategy is low-complexity while the performance is good. Mathematical analysis is provided and simulations are given based on our system.

Includes members:
  Member "parallel routing in mobile ad hoc networks":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "routing protocols performance in mobile ad hoc networks using millimeter wave")
  Member "the diversity multiplexing tradeoff of the mimo z interference channel":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "the diversity multiplexing tradeoff of the mimo half duplex relay channel")
  Member "mimo networks the effects of interference":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "how much bandpass filtering is required in massive mimo base stations")
  Member "on the degrees of freedom regions of two user mimo z and full interference channels with reconfigurable antennas":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "blind interference alignment for private information retrieval")
  Member "mimo z interference channels capacity under strong and noisy interference":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "capacity region of vector gaussian interference channels with generally strong interference")
  Member "space division multiple access with a sum feedback rate constraint":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "modeling analysis and optimization of caching in multi antenna small cell networks")

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)