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 "on the degrees of freedom of the symmetric multi relay mimo y channel"):
  Abstract: In this paper, we study the degrees of freedom (DoF) of the symmetric multi-relay multiple-input multiple-output Y channel, where three user nodes, each with    $M$    antennas, communicate via    $K$    geographically separated relay nodes, each with    $N$    antennas. For this model, we establish a general DoF achievability framework based on linear precoding and post-processing methods. The framework poses a nonlinear problem with respect to user precoders, user post-processors, and relay precoders. To solve this problem, we adopt an  uplink–downlink asymmetric  strategy, where the user precoders are designed for signal alignment and the user post-processors are used for interference neutralization. With the user precoder and post-processor designs fixed as such, the original problem then reduces to a problem of relay precoder design. To address the solvability of the system, we propose a general method for solving matrix equations. Together with the techniques of antenna disablement and symbol extension, an achievable DoF of the considered model is derived for an arbitrary setup of    $(K, M, N)$   . We show that for    $K\geq 2$   , the optimal DoF is achieved for    $({M}/{N}) \in [0,\max \{({\sqrt {3K}}/{3}),1\})\cup [(({3K+({9K^{2}-12K}})^{1/2})/{6}),\infty )$   . We also show that the uplink-downlink asymmetric design proposed in this paper considerably outperforms the conventional approach based on uplink-downlink symmetry.

Includes members:
  Member "optimal degrees of freedom region for the asymmetric mimo y channel":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "optimal dof region for the asymmetric two pair mimo two way relay channel")
  Member "generalized signal alignment on the achievable dof for multi user mimo two way relay channels":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "optimal dof region for the asymmetric two pair mimo two way relay channel")
  Member "cyclic communication and the inseparability of mimo multi way relay channels":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "optimal dof region for the asymmetric two pair mimo two way relay channel")
  Member "mimo multiway relaying with clustered full data exchange signal space alignment and degrees of freedom":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "optimal dof region for the asymmetric two pair mimo two way relay channel")
  Member "beyond one way communication degrees of freedom of multi way relay mimo interference networks":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "degrees of freedom of the mimo three way channel with node intermittency")
  Member "mimo multiway relaying with pairwise data exchange a degrees of freedom perspective":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "degrees of freedom of the mimo three way channel with node intermittency")
  Member "approximate sum capacity of the y channel":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "optimal dof region for the asymmetric two pair mimo two way relay channel")
  Member "degrees of freedom for the mimo multi way relay channel":
    also connected through other hyperedges:
      - Hyperedge HE-8 (induced by source paper "degrees of freedom of the mimo three way channel with node intermittency")

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)