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: "transmit pulse shaping for molecular communications"
  Abstract: This paper presents a method for shaping the transmit pulse of a molecular signal such that the diffusion channel's response is a sharp pulse. The impulse response of a diffusion channel is typically characterised as having an infinitely long transient response. This can cause severe inter-symbol-interference, and reduce the achievable reliable bit rate. We achieve the desired chemical channel response by poisoning the channel with a secondary compound, such that it chemically cancels aspects of the primary information signal. We use two independent methods to show that the chemical concentration of the information signal should be ∝ δ(t) and that of the poison signal should be ∝ t-3/2.

Connected through hyperedge HE-1 (induced by source paper "diffusive molecular communications with reactive molecules channel modeling and signal design"):
  with members:
    - "a survey of biological building blocks for synthetic molecular communication systems"
    - "channel modeling for diffusive molecular communication a tutorial review"
    - "a novel experimental platform for in vessel multi chemical molecular communications"
    - "diffusive molecular communications with reactive signaling"
    - "channel estimation for diffusive molecular communications"
    - "a comprehensive survey of recent advancements in molecular communication"
    - "improving receiver performance of diffusive molecular communication with enzymes"
    - "isi mitigation techniques in molecular communication"

Connected through hyperedge HE-2 (induced by source paper "diffusive molecular communications with reactive signaling"):
  with members:
    - "a novel experimental platform for in vessel multi chemical molecular communications"
    - "symbol synchronization for diffusive molecular communication systems"
    - "channel estimation for diffusive molecular communications"
    - "a comprehensive survey of recent advancements in molecular communication"
    - "improving receiver performance of diffusive molecular communication with enzymes"
    - "extended master equation models for molecular communication networks"

Connected through hyperedge HE-3 (induced by source paper "mol eye a new metric for the performance evaluation of a molecular signal"):
  with members:
    - "on the design of matched filters for molecule counting receivers"
    - "a comprehensive survey of recent advancements in molecular communication"
    - "arrival modeling and error analysis for molecular communication via diffusion with drift"
    - "novel modulation techniques using isomers as messenger molecules for nano communication networks via diffusion"
    - "capacity of discrete molecular diffusion channels"

Connected through hyperedge HE-4 (induced by source paper "a comprehensive survey of recent advancements in molecular communication"):
  with members:
    - "molecular mimo from theory to prototype"
    - "molecular communications channel model and physical layer techniques"
    - "a universal channel model for molecular communication systems with metal oxide detectors"
    - "design and optimizing of on chip kinesin substrates for molecular communication"
    - "improving receiver performance of diffusive molecular communication with enzymes"
    - "a molecular communication link for monitoring in confined environments"
    - "relaying in diffusion based molecular communication"
    - "effect of receptor density and size on signal reception in molecular communication via diffusion with an absorbing receiver"

Connected through hyperedge HE-5 (induced by source paper "on medium chemical reaction in diffusion based molecular communication a two way relaying example"):
  with members:
    - "effective enzyme deployment for degradation of interference molecules in molecular communication"
    - "diffusive molecular communications with reactive signaling"
    - "physical layer network coding in molecular two way relay networks"
    - "information theory of molecular communication directions and challenges"
    - "over the air function computation in sensor networks"
    - "a comprehensive survey of recent advancements in molecular communication"
    - "analysis and design of multi hop diffusion based molecular communication networks"
    - "on the capacity of point to point and multiple access molecular communications with ligand receptors"

Connected through hyperedge HE-6 (induced by source paper "low complexity noncoherent signal detection for nanoscale molecular communications"):
  with members:
    - "performance of macro scale molecular communications with sensor cleanse time"
    - "channel and noise models for nonlinear molecular communication systems"
    - "tabletop molecular communication text messages through chemical signals"
    - "diffusion based nanonetworking a new modulation technique and performance analysis"

Connected through hyperedge HE-7 (induced by source paper "type based sign modulation and its application for isi mitigation in molecular communication"):
  with members:
    - "information theory of molecular communication directions and challenges"
    - "a novel molecular communication system using acids bases and hydrogen ions"
    - "improving receiver performance of diffusive molecular communication with enzymes"

Connected through hyperedge HE-8 (induced by source paper "type based sign modulation for molecular communication"):
  with members:
    - "improving receiver performance of diffusive molecular communication with enzymes"
    - "novel modulation techniques using isomers as messenger molecules for nano communication networks via diffusion"
    - "diffusion based nanonetworking a new modulation technique and performance analysis"

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.ET(Emerging Technologies)