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 "a new dof upper bound and its achievability for k user mimo y channels"):
  Abstract: This work is to study the degrees of freedom (DoF) of the K-user MIMO Y channel. Previously, two transmission frameworks, in addition to the original signal alignment introduced by Lee et al., have been proposed for the DoF analysis at different antenna configurations. One is signal group based alignment proposed by Hua et al. and the other is a signal pattern approach proposed by Wang et al. Yet, the maximum achievable DoF at antenna configuration equation still remains unknown, where M and N denote the number of antennas at each source node and the relay node, respectively. In this work, we first derive a new upper bound of the DoF using the genie-aided approach. Then, we propose a more general transmission framework, generalized signal alignment (GSA), to approach the new bound. With GSA, we prove that the new DoF upper bound is tight when equation.

Includes members:
  Member "generalized signal alignment on the achievable dof for multi user mimo two way relay channels":
    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 for mimo two way x relay channels":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "mimo multiway distributed relay channel with full data exchange an achievable rate perspective")
  Member "beyond one way communication degrees of freedom of multi way relay mimo interference networks":
    also connected through other hyperedges:
      - Hyperedge HE-3 (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-4 (induced by source paper "degrees of freedom of the mimo three way channel with node intermittency")
  Member "generalized signal alignment for arbitrary mimo two way relay channels":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "optimal dof region for the asymmetric two pair mimo two way relay channel")
  Member "the degrees of freedom of the mimo y channel":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "optimal dof region for the asymmetric two pair mimo two way relay channel")

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)