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: "completely stale transmitter channel state information is still very useful"
  Abstract: Transmitter channel state information (CSIT) is crucial for the multiplexing gains offered by advanced interference management techniques such as multiuser MIMO and interference alignment. Such CSIT is usually obtained by feedback from the receivers, but the feedback is subject to delays. The usual approach is to use the fed back information to predict the current channel state and then apply a scheme designed assuming perfect CSIT. When the feedback delay is large compared to the channel coherence time, such a prediction approach completely fails to achieve any multiplexing gain. In this paper, we show that even in this case, the completely stale CSI is still very useful. More concretely, we show that in a MIMO broadcast channel with $K$ transmit antennas and $K$ receivers each with 1 receive antenna, $\frac{K}{1+1/2+ ...+ \frac{1}{K}} (> 1) $ degrees of freedom is achievable even when the fed back channel state is completely independent of the current channel state. Moreover, we establish that if all receivers have independent and identically distributed channels, then this is the optimal number of degrees of freedom achievable. In the optimal scheme, the transmitter uses the fed back CSI to learn the side information that the receivers receive from previous transmissions rather than to predict the current channel state. Our result can be viewed as the first example of feedback providing a degree-of-freedom gain in memoryless channels.

Connected through hyperedge HE-1 (induced by source paper "achievable dof regions of three user mimo broadcast channel with delayed csit"):
  with members:
    - "on sdof of multi receiver wiretap channel with alternating csit"
    - "on the degrees of freedom of the 3 user miso broadcast channel with hybrid csit"
    - "on the degrees of freedom of k user siso interference and x channels with delayed csit"
    - "secure degrees of freedom of mimo x channels with output feedback and delayed csit"
    - "degrees of freedom of time correlated miso broadcast channel with delayed csit"
    - "optimal use of current and outdated channel state information degrees of freedom of the miso bc with mixed csit"
    - "secrecy degrees of freedom of mimo broadcast channels with delayed csit"
    - "the degrees of freedom regions of two user and certain three user mimo broadcast channels with delayed csit"

Connected through hyperedge HE-2 (induced by source paper "dof region of the decentralized mimo broadcast channel unicode x2014 how many informed antennas do we need"):
  with members:
    - "sum set inequalities from aligned image sets instruments for robust gdof bounds"
    - "achievable dof regions of mimo networks with imperfect csit"
    - "on the degrees of freedom of the k user distributed broadcast channel"
    - "degrees of freedom of the two user mimo broadcast channel with private and common messages under hybrid csit models"
    - "generalized degrees of freedom of the symmetric k user interference channel under finite precision csit"
    - "sum capacity of interference channels with a local view impact of distributed decisions"
    - "the two user gaussian interference channel a deterministic view"

Connected through hyperedge HE-3 (induced by source paper "on the separability of parallel miso broadcast channels under partial csit a degrees of freedom region perspective"):
  with members:
    - "degrees of freedom region of the m n 1 n 2 mimo broadcast channel with partial csit an application of sum set inequalities based on aligned image sets"
    - "towards an extremal network theory robust gdof gain of transmitter cooperation over tin"
    - "dof region of the miso bc with partial csit proof by inductive fourier motzkin elimination"
    - "optimality of simple layered superposition coding in the 3 user miso bc with finite precision csit"
    - "on the optimality of treating inter cell interference as noise in uplink cellular networks"
    - "on the dof of parallel miso bcs with partial csit total order and separability"
    - "optimal dof region of the k user miso bc with partial csit"
    - "elevated multiplexing and signal space partitioning in the 2 user mimo ic with partial csit"

Connected through hyperedge HE-4 (induced by source paper "joint user selection power allocation and precoding design with imperfect csit for multi cell mu mimo downlink systems"):
  with members:
    - "optimal pilot and payload power control in single cell massive mimo systems"
    - "on the capacity of cloud radio access networks with oblivious relaying"
    - "on the ergodic rate lower bounds with applications to massive mimo"
    - "massive mimo with imperfect channel covariance information"
    - "sum rate maximization for linearly precoded downlink multiuser miso systems with partial csit a rate splitting approach"
    - "robust transmission in downlink multiuser miso systems a rate splitting approach"
    - "cell free massive mimo versus small cells"
    - "a rate splitting strategy for massive mimo with imperfect csit"

Connected through hyperedge HE-5 (induced by source paper "energy efficient processing and robust wireless cooperative transmission for edge inference"):
  with members:
    - "edge intelligence paving the last mile of artificial intelligence with edge computing"
    - "reliable federated learning for mobile networks"
    - "edge ai on demand accelerating deep neural network inference via edge computing"
    - "two timescale hybrid compression and forward for massive mimo aided c ran"
    - "wireless network intelligence at the edge"
    - "nonconvex and nonsmooth sparse optimization via adaptively iterative reweighted methods"
    - "efficient processing of deep neural networks a tutorial and survey"
    - "limited feedback in single and multi user mimo systems with finite bit adcs"

Connected through hyperedge HE-6 (induced by source paper "secure retrospective interference alignment"):
  with members:
    - "secrecy in mimo networks with no eavesdropper csit"
    - "secure degrees of freedom region of the two user miso broadcast channel with alternating csit"
    - "secure degrees of freedom of one hop wireless networks"
    - "ergodic interference alignment with delayed feedback"
    - "on the degrees of freedom of k user siso interference and x channels with delayed csit"
    - "secure degrees of freedom of k user gaussian interference channels a unified view"
    - "interference alignment for secrecy"
    - "ergodic secret alignment"

Connected through hyperedge HE-7 (induced by source paper "addressing the curse of mobility in massive mimo with prony based angular delay domain channel predictions"):
  with members:
    - "massive mimo has unlimited capacity"
    - "robust pilot decontamination based on joint angle and power domain discrimination"
    - "massive mimo with multi cell mmse processing exploiting all pilots for interference suppression"
    - "sum rate and power scaling of massive mimo systems with channel aging"
    - "blind pilot decontamination"
    - "the degrees of freedom region of temporally correlated mimo networks with delayed csit"
    - "effects of channel aging in massive mimo systems"
    - "a coordinated approach to channel estimation in large scale multiple antenna systems"

Connected through hyperedge HE-8 (induced by source paper "on the degrees of freedom of the miso interference broadcast channel with delayed csit"):
  with members:
    - "achievable dof delay trade offs for the k user mimo interference channel with delayed csit"
    - "achievable sum dof of the k user mimo interference channel with delayed csit"
    - "retrospective interference alignment for the mimo interference broadcast channel"
    - "genie tree and degrees of freedom of the symmetric mimo interfering broadcast channel"
    - "optimal use of current and outdated channel state information degrees of freedom of the miso bc with mixed csit"
    - "subspace alignment chains and the degrees of freedom of the three user mimo interference channel"
    - "mimo broadcast channels with finite rate feedback"

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)