human: Given a node-centered hypergraph: <hypergraph>, where nodes represent papers and hyperedges represent sets of papers co-cited by a source paper.

Details of the hypergraph:
Center node: "degrees of freedom of mimo cellular networks decomposition and linear beamforming design"
  Abstract: This paper investigates the symmetric degrees of freedom (DoF) of MIMO cellular networks with G cells and K users per cell, having N antennas at each base station and M antennas at each user. In particular, we investigate achievability techniques based on either decomposition with asymptotic interference alignment (IA) or linear beamforming schemes, and show that there are distinct regimes of (G,K,M,N) where one outperforms the other. We first note that both one-sided and two-sided decomposition with asymptotic IA achieve the same degrees of freedom. We then establish specific antenna configurations under which the DoF achieved using decomposition based schemes is optimal by deriving a set of outer bounds on the symmetric DoF. For linear beamforming schemes, we first focus on small networks and propose a structured approach to linear beamforming based on a notion called packing ratios. Packing ratio describes the interference footprint or shadow cast by a set of transmit beamformers and enables us to identify the underlying structures for aligning interference. Such a structured beamforming design can be shown to achieve the optimal spatially normalized DoF (sDoF) of two-cell two-user/cell network and the two-cell three-user/cell network. For larger networks, we develop an unstructured approach to linear interference alignment, where transmit beamformers are designed to satisfy conditions for IA without explicitly identifying the underlying structures for IA. The main numerical insight of this paper is that such an approach appears to be capable of achieving the optimal sDoF for MIMO cellular networks in regimes where linear beamforming dominates asymptotic decomposition, and a significant portion of sDoF elsewhere. Remarkably, polynomial identity test appears to play a key role in identifying the boundary of the achievable sDoF region in the former case.

Connected through hyperedge HE-1 (induced by source paper "relay aided mimo cellular networks using opposite directional interference alignment"):
  with members:
    - "degrees of freedom of full duplex multiantenna cellular networks"
    - "interference alignment for multicell multiuser mimo uplink channels"
    - "cellular interference alignment"
    - "on the degrees of freedom achievable through interference alignment in a mimo interference channel"
    - "downlink interference alignment"
    - "degrees of freedom of the k user m times n mimo interference channel"

Connected through hyperedge HE-2 (induced by source paper "role of interference alignment in wireless cellular network optimization"):
  with members:
    - "joint beamforming and power control in coordinated multicell max min duality effective network and large system transition"
    - "multilevel topological interference management"
    - "on the feasibility of linear interference alignment for mimo interference broadcast channels with constant coefficients"
    - "genie chain and degrees of freedom of symmetric mimo interference broadcast channels"
    - "on the degrees of freedom achievable through interference alignment in a mimo interference channel"
    - "a feasibility test for linear interference alignment in mimo channels with constant coefficients"
    - "degrees of freedom of mimo x networks spatial scale invariance one sided decomposability and linear feasibility"
    - "degrees of freedom of interference channels with comp transmission and reception"

Connected through hyperedge HE-3 (induced by source paper "fundamental limits of spectrum sharing full duplex multicell networks"):
  with members:
    - "on the degrees of freedom of full duplex cellular networks"
    - "degrees of freedom of full duplex multiantenna cellular networks"
    - "degrees of freedom of uplink downlink multiantenna cellular networks"
    - "degrees of freedom of interference channels with comp transmission and reception"
    - "degrees of freedom region for an interference network with general message demands"
    - "downlink interference alignment"
    - "ergodic interference alignment"
    - "degrees of freedom of the k user m times n mimo interference channel"

Connected through hyperedge HE-4 (induced by source paper "cellular interference alignment"):
  with members:
    - "cellular interference alignment omni directional antennas and asymmetric configurations"
    - "feasibility of interference alignment for the mimo interference channel"
    - "real interference alignment exploiting the potential of single antenna systems"
    - "interference channels with half duplex source cooperation"
    - "cognitive wyner networks with clustered decoding"
    - "flexible backhaul design and degrees of freedom for linear interference networks"
    - "on the optimality of treating interference as noise"
    - "degrees of freedom dof of locally connected interference channels with coordinated multi point comp transmission"

Connected through hyperedge HE-5 (induced by source paper "degrees of freedom of uplink downlink multiantenna cellular networks"):
  with members:
    - "degrees of freedom of full duplex multiantenna cellular networks"
    - "real interference alignment exploiting the potential of single antenna systems"
    - "cellular interference alignment"
    - "genie tree and degrees of freedom of the symmetric mimo interfering broadcast channel"
    - "hetnets and massive mimo modeling potential gains and performance analysis"
    - "on the feasibility of linear interference alignment for mimo interference broadcast channels with constant coefficients"
    - "genie chain and degrees of freedom of symmetric mimo interference broadcast channels"
    - "regularized zero forcing interference alignment for the two cell mimo interfering broadcast channel"

Connected through hyperedge HE-6 (induced by source paper "interference alignment for multicell multiuser mimo uplink channels"):
  with members:
    - "degrees of freedom of full duplex multiantenna cellular networks"
    - "cellular interference alignment omni directional antennas and asymmetric configurations"
    - "real interference alignment exploiting the potential of single antenna systems"
    - "degrees of freedom of uplink downlink multiantenna cellular networks"
    - "cellular interference alignment"
    - "on the feasibility of linear interference alignment for mimo interference broadcast channels with constant coefficients"
    - "genie chain and degrees of freedom of symmetric mimo interference broadcast channels"
    - "interference alignment for partially connected mimo cellular networks"

Connected through hyperedge HE-7 (induced by source paper "cellular interference alignment omni directional antennas and asymmetric configurations"):
  with members:
    - "fractional coloring orthogonal access achieves all unicast capacity dof region of index coding tim if and only if network topology is chordal"
    - "feasibility of interference alignment for the mimo interference channel"
    - "real interference alignment exploiting the potential of single antenna systems"
    - "topological interference management through index coding"
    - "on uplink downlink duality for cellular ia"
    - "cellular interference alignment"
    - "on the optimality of treating interference as noise"
    - "network mimo with linear zero forcing beamforming large system analysis impact of channel estimation and reduced complexity scheduling"

Connected through hyperedge HE-8 (induced by source paper "genie tree and degrees of freedom of the symmetric mimo interfering broadcast channel"):
  with members:
    - "genie chains exploring outer bounds on the degrees of freedom of mimo interference networks"
    - "feasibility of interference alignment for the mimo interference channel"
    - "the feasibility conditions for interference alignment in mimo networks"
    - "alternating rate profile optimization in single stream mimo interference channels"
    - "on the feasibility of linear interference alignment for mimo interference broadcast channels with constant coefficients"
    - "on the degrees of freedom achievable through interference alignment in a mimo interference channel"
    - "a feasibility test for linear interference alignment in mimo channels with constant coefficients"
    - "subspace alignment chains and the degrees of freedom of the three user mimo interference channel"

Question: Please tell me which class the center node 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)