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: "analog network coding in general snr regime"
  Abstract: The problem of maximum rate achievable with analog network coding for a unicast communication over a layered wireless relay network with directed links is considered. A relay node performing analog network coding scales and forwards the signals received at its input. Recently this problem has been considered under two assumptions: (A) each relay node scales its received signal to the upper bound of its transmit power constraint, (B) the relay nodes in specific subsets of the network operate in the high-SNR regime. We establish that assumption (A), in general, leads to suboptimal end-to-end rate. We also characterize the performance of analog network coding in class of symmetric layered networks without assumption (B). #R##N#The key contribution of this work is a lemma that states that a globally optimal set of scaling factors for the nodes in a layered relay network that maximizes the end-to-end rate can be computed layer-by-layer. Specifically, a rate-optimal set of scaling factors for the nodes in a layer is the one that maximizes the sum-rate of the nodes in the next layer. This critical insight allows us to characterize analog network coding performance in network scenarios beyond those that can be analyzed using the existing approaches. We illustrate this by computing the maximum rate achievable with analog network coding in one particular layered network, in various communication scenarios.

Connected through hyperedge HE-1 (induced by source paper "network simplification for secure af relaying"):
  with members:
    - "secure transmission in amplify and forward diamond networks with a single eavesdropper"
    - "wireless network simplification the gaussian n relay diamond network"
    - "relay beamforming strategies for physical layer security"
    - "collaborative relay beamforming for secrecy"
    - "discrete memoryless interference and broadcast channels with confidential messages secrecy rate regions"
    - "a simple cooperative diversity method based on network path selection"

Connected through hyperedge HE-2 (induced by source paper "secure analog network coding in layered networks"):
  with members:
    - "secure transmission in amplify and forward diamond networks with a single eavesdropper"
    - "relay beamforming strategies for physical layer security"

Connected through hyperedge HE-3 (induced by source paper "analog network coding in nonlinear chains"):
  with members:
    - "analog network coding in general snr regime performance of a greedy scheme"
    - "analog network coding in the generalized high snr regime"
    - "amplify and forward in wireless relay networks"
    - "network beamforming using relays with perfect channel information"
    - "optimal relay functionality for snr maximization in memoryless relay networks"

Connected through hyperedge HE-4 (induced by source paper "optimal amplify and forward schemes for relay channels with correlated relay noise"):
  with members:
    - "analog network coding in general snr regime performance of a greedy scheme"
    - "on design of collaborative beamforming for two way relay networks"
    - "network beamforming using relays with perfect channel information"
    - "optimal beamforming for two way multi antenna relay channel with analogue network coding"

Connected through hyperedge HE-5 (induced by source paper "analog network coding in general snr regime performance of network simplification"):
  with members:
    - "analog network coding in general snr regime performance of a greedy scheme"
    - "the approximate capacity of the gaussian n relay diamond network"
    - "analog network coding in the generalized high snr regime"
    - "amplify and forward in wireless relay networks"
    - "wireless network simplification the gaussian n relay diamond network"
    - "a simple cooperative diversity method based on network path selection"
    - "optimal relay functionality for snr maximization in memoryless relay networks"

Connected through hyperedge HE-6 (induced by source paper "analog network coding in general snr regime performance of a greedy scheme"):
  with members:
    - "analog network coding in the generalized high snr regime"
    - "amplify and forward in wireless relay networks"
    - "wireless network simplification the gaussian n relay diamond network"
    - "optimal relay functionality for snr maximization in memoryless relay networks"

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)