human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "pulse shaping design for ofdm systems"):
  Abstract: OFDM-based waveforms with filtering functionalities are considered key enablers for a flexible air-interface design for multi-service support in future mobile systems. By allowing for the flexible configuration of physical layer parameters according to the diverse requirements of a service, these waveforms enable the in-band coexistence of different services. One candidate from this category of waveforms is pulse shaped OFDM, which follows the idea of subcarrier filtering and fully maintain the compatibility of CP-OFDM. Exploiting pulse shape as an additional degree of freedom in OFDM systems can be beneficially used to improve the systems robustness against time and frequency distortions and to efficiently facilitate spectrum sharing or fragmented spectrum access. In this paper, we investigate the OFDM pulse shaping problem and propose new pulse shape design methods. Link and system performance evaluation show that a proper design of the OFDM pulse shapes could substantially improve the system performance under time and frequency distortions. Furthermore, pulse shaped OFDM is able to support asynchronous transmissions and reduce the signal sensitivity to Doppler distortions, rendering it beneficial to meet diverse requirements for various mobile-broadband and internet-of-things applications.

Includes members:
  Member "filtered ofdm enabler for flexible waveform in the 5th generation cellular networks":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "ultrareliable and low latency communication techniques for tactile internet services")
  Member "soft output demodulation on frequency selective rayleigh fading channels using ar channel models":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "pulse shaped ofdm for 5g systems")

Question: Please tell me which class the source paper 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)