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: "the feasibility conditions for interference alignment in mimo networks"
  Abstract: Interference alignment (IA) has attracted great attention in the last few years for its breakthrough performance in interference networks. However, despite the numerous works dedicated to IA, the feasibility conditions of IA remains unclear for most network topologies. The IA feasibility analysis is challenging as the IA constraints are sets of high-degree polynomials, for which no systematic tool to analyze the solvability conditions exists. In this work, by developing a new mathematical framework that maps the solvability of sets of polynomial equations to the linear independence of their first-order terms, we propose a sufficient condition that applies to MIMO interference networks with general configurations. We have further proved that this sufficient condition coincides with the necessary conditions under a wide range of configurations. These results further consolidate the theoretical basis of IA.

Connected through hyperedge HE-1 (induced by source paper "topological interference management with user admission control via riemannian optimization"):
  with members:
    - "fundamental tradeoff between storage and latency in cache aided wireless interference networks"
    - "a fundamental tradeoff between computation and communication in distributed computing"
    - "alternating minimization algorithms for hybrid precoding in millimeter wave mimo systems"
    - "low rank matrix completion for topological interference management by riemannian pursuit"
    - "low rank tensor completion a riemannian manifold preconditioning approach"
    - "an overview of low rank matrix recovery from incomplete observations"
    - "wireless communications in the era of big data"
    - "heterogeneous cellular networks using wireless backhaul fast admission control and large system analysis"

Connected through hyperedge HE-2 (induced by source paper "on interference alignment with imperfect csi characterizations of outage probability ergodic rate and ser"):
  with members:
    - "performance analysis and optimization for interference alignment over mimo interference channels with limited feedback"
    - "on the achievable dof and user scaling law of opportunistic interference alignment in 3 transmitter mimo interference channels"
    - "interference aware resource control in multi antenna cognitive ad hoc networks with heterogeneous delay constraints"
    - "performance analysis for physical layer security in multi antenna downlink networks with limited csi feedback"
    - "limited feedback design for interference alignment on mimo interference networks with heterogeneous path loss and spatial correlations"
    - "opportunistic interference alignment for mimo interfering multiple access channels"
    - "on the degrees of freedom achievable through interference alignment in a mimo interference channel"
    - "distributed robust multicell coordinated beamforming with imperfect csi an admm approach"

Connected through hyperedge HE-3 (induced by source paper "generalized interference alignment part i theoretical framework"):
  with members:
    - "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"
    - "settling the feasibility of interference alignment for the mimo interference channel the symmetric square case"
    - "interference alignment for secrecy"
    - "cooperative algorithms for mimo interference channels"
    - "interference alignment as a rank constrained rank minimization"
    - "ergodic secret alignment"

Connected through hyperedge HE-4 (induced by source paper "generalized interference alignment part ii application to wireless secrecy"):
  with members:
    - "interference alignment for secrecy"
    - "interference assisted secret communication"
    - "on cooperative relaying schemes for wireless physical layer security"
    - "cooperative jamming for secure communications in mimo relay networks"
    - "outage probability of general ad hoc networks in the high reliability regime"
    - "ergodic secret alignment"
    - "on feasibility of interference alignment in mimo interference networks"
    - "performance of interference alignment in clustered wireless ad hoc networks"

Connected through hyperedge HE-5 (induced by source paper "on feasibility of perfect interference alignment in interference networks"):
  with members:
    - "ergodic interference alignment"

Connected through hyperedge HE-6 (induced by source paper "replication based outer bounds and the optimality of half the cake for rank deficient mimo interference networks"):
  with members:
    - "genie chains exploring outer bounds on the degrees of freedom of mimo interference networks"
    - "are generalized cut set bounds tight for the deterministic interference channel"
    - "degrees of freedom of the rank deficient interference channel with feedback"
    - "feasibility of interference alignment for the mimo interference channel"
    - "the dof of the asymmetric mimo interference channel with square direct link channel matrices"
    - "genie tree and degrees of freedom of the symmetric mimo interfering broadcast 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"

Connected through hyperedge HE-7 (induced by source paper "the feasibility of interference alignment for reverse tdd systems in mimo cellular networks"):
  with members:
    - "feasibility of interference alignment for the mimo interference channel"
    - "degrees of freedom of uplink downlink multiantenna cellular networks"
    - "cellular interference alignment"
    - "on the degrees of freedom of asymmetric mimo interference broadcast channels"
    - "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"
    - "regularized zero forcing interference alignment for the two cell mimo interfering broadcast channel"
    - "on the degrees of freedom achievable through interference alignment in a mimo interference channel"

Connected through hyperedge HE-8 (induced by source paper "performance analysis and optimization for interference alignment over mimo interference channels with limited feedback"):
  with members:
    - "interference aware resource control in multi antenna cognitive ad hoc networks with heterogeneous delay constraints"
    - "limited feedback design for interference alignment on mimo interference networks with heterogeneous path loss and spatial correlations"
    - "robust lattice alignment for k user mimo interference channels with imperfect channel knowledge"
    - "multi mode transmission for the mimo broadcast channel with imperfect channel state information"
    - "cooperative precoding with limited feedback for mimo interference channels"
    - "on feasibility of interference alignment in mimo interference networks"
    - "downlink interference alignment"
    - "interference alignment under limited feedback for mimo interference channels"

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)