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: "asymptotic analysis of amplify and forward relaying in a parallel mimo relay network"
  Abstract: This paper considers the setup of a parallel MIMO relay network in which $K$ relays, each equipped with $N$ antennas, assist the transmitter and the receiver, each equipped with $M$ antennas, in the half-duplex mode, under the assumption that $N\geq{M}$. This setup has been studied in the literature like in \cite{nabar}, \cite{nabar2}, and \cite{qr}. In this paper, a simple scheme, the so-called Incremental Cooperative Beamforming, is introduced and shown to achieve the capacity of the network in the asymptotic case of $K\to{\infty}$ with a gap no more than $O(\frac{1}{\log(K)})$. This result is shown to hold, as long as the power of the relays scales as $\omega(\frac{\log^9(K)}{K})$. Finally, the asymptotic SNR behavior is studied and it is proved that the proposed scheme achieves the full multiplexing gain, regardless of the number of relays.

Connected through hyperedge HE-1 (induced by source paper "a scalable architecture for distributed receive beamforming analysis and experimental demonstration"):
  with members:
    - "ergodic capacity analysis of amplify and forward mimo dual hop systems"
    - "opportunistic collaborative beamforming with one bit feedback"
    - "network beamforming using relays with perfect channel information"
    - "distributed transmit beamforming using feedback control"

Connected through hyperedge HE-2 (induced by source paper "broadcast approaches to the diamond channel"):
  with members:
    - "maximum throughput in multiple antenna systems"
    - "experiment driven characterization of full duplex wireless systems"
    - "proof of the outage probability conjecture for miso channels"
    - "pushing the limits of full duplex design and real time implementation"
    - "an efficient adaptive distributed space time coding scheme for cooperative relaying"
    - "on multistage successive refinement for wyner ziv source coding with degraded side informations"
    - "broadcast cooperation strategies for two colocated users"

Connected through hyperedge HE-3 (induced by source paper "multiplexing gain of amplify forward relaying in wireless multi antenna relay networks"):
  with members:
    - "wireless network information flow a deterministic approach"
    - "multi hop cooperative wireless networks diversity multiplexing tradeoff and optimal code design"
    - "dmt of multi hop cooperative networks part i basic results"
    - "on the diversity multiplexing tradeoff in multiple relay network"
    - "approximate capacity of gaussian relay networks"
    - "wireless network information flow"
    - "towards the optimal amplify and forward cooperative diversity scheme"
    - "optimal space time codes for the mimo amplify and forward cooperative channel"

Connected through hyperedge HE-4 (induced by source paper "multilevel coding over two hop single user networks"):
  with members:
    - "multi hop cooperative wireless networks diversity multiplexing tradeoff and optimal code design"
    - "diversity multiplexing tradeoff of the half duplex relay channel"
    - "on the capacity of wireless multicast networks"
    - "towards the optimal amplify and forward cooperative diversity scheme"

Connected through hyperedge HE-5 (induced by source paper "on the diversity multiplexing tradeoff in multiple relay network"):
  with members:
    - "multi hop cooperative wireless networks diversity multiplexing tradeoff and optimal code design"
    - "a deterministic approach to wireless relay networks"
    - "crystallization in large wireless networks"
    - "optimum diversity multiplexing tradeoff in the multiple relays network"
    - "a simple cooperative diversity method based on network path selection"
    - "towards the optimal amplify and forward cooperative diversity scheme"

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)