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 "csi feedback reduction for mimo interference alignment"):
  Abstract: Interference alignment (IA) is a linear precoding strategy that can achieve optimal capacity scaling at high SNR in interference networks. Most of the existing IA designs require full channel state information (CSI) at the transmitters, which induces a huge CSI signaling cost. Hence it is desirable to improve the feedback efficiency for IA and in this paper, we propose a novel IA scheme with a significantly reduced CSI feedback. To quantify the CSI feedback cost, we introduce a novel metric, namely the feedback dimension. This metric serves as a first-order measurement of CSI feedback overhead. Due to the partial CSI feedback constraint, conventional IA schemes can not be applied and hence, we develop a novel IA precoder/decorrelator design and establish new IA feasibility conditions. Via dynamic feedback profile design, the proposed IA scheme can also achieve a flexible tradeoff between the degree of freedom (DoF) requirements for data streams, the antenna resources and the CSI feedback cost. We show by analysis and simulations that the proposed scheme achieves substantial reductions of CSI feedback overhead under the same DoF requirement in MIMO interference networks.

Includes members:
  Member "the feasibility conditions for interference alignment in mimo networks":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "topological interference management with user admission control via riemannian optimization")
  Member "csit sharing over finite capacity backhaul for spatial interference alignment":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "cooperative channel estimation for coordinated transmission with limited backhaul")
  Member "limited feedback design for interference alignment on mimo interference networks with heterogeneous path loss and spatial correlations":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "an overview on resource allocation techniques for multi user mimo systems")
  Member "on the degrees of freedom achievable through interference alignment in a mimo interference channel":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "centralized and decentralized cache aided interference management in heterogeneous parallel channels")
  Member "interference alignment with quantized grassmannian feedback in the k user constant mimo interference channel":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "on channel state feedback model and overhead in theoretical and practical views")
  Member "grassmannian differential limited feedback for interference alignment":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "online learning models for content popularity prediction in wireless edge caching")
  Member "interference alignment with incomplete csit sharing":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "generalized degrees of freedom of the 2 user case miso broadcast channel with distributed csit")
  Member "feedback topology designs for interference alignment in mimo interference channels":
    also connected through other hyperedges:
      - Hyperedge HE-8 (induced by source paper "limited feedback design for interference alignment on mimo interference networks with heterogeneous path loss and spatial correlations")

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)