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 "saddlepoint approximations for short packet wireless communications"):
  Abstract: In recent years, the derivation of nonasymptotic converse and achievability bounds on the maximum coding rate as a function of the error probability and blocklength has gained attention in the information theory literature. While these bounds are accurate for many scenarios of interest, they need to be evaluated numerically for most wireless channels of practical interest, and their evaluation is computationally demanding. This paper presents saddlepoint approximations of state-of-the-art converse and achievability bounds for noncoherent, single-antenna, Rayleigh block-fading channels. These approximations can be calculated efficiently and are shown to be accurate for SNR values as small as 0 dB and blocklengths of 168 channel uses or more.

Includes members:
  Member "secure short packet communications for mission critical iot applications":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "resource allocation for secure multi user downlink miso urllc systems")
  Member "efficient error correcting codes in the short blocklength regime":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "an efficient algorithm for designing optimal crcs for tail biting convolutional codes")
  Member "short packet downlink transmission with non orthogonal multiple access":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "robust urllc packet scheduling of ofdm systems")
  Member "5g wireless network slicing for embb urllc and mmtc a communication theoretic view":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "overhead aware design of reconfigurable intelligent surfaces in smart radio environments")
  Member "short packets over block memoryless fading channels pilot assisted or noncoherent transmission":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "short packet transmission via variable length codes in the presence of noisy stop feedback")
  Member "joint sum rate and error probability optimization finite blocklength analysis":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "an energy efficient controller for wirelessly powered communication networks")
  Member "coherent multiple antenna block fading channels at finite blocklength":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "short packet transmission via variable length codes in the presence of noisy stop feedback")
  Member "on single antenna rayleigh block fading channels at finite blocklength":
    also connected through other hyperedges:
      - Hyperedge HE-8 (induced by source paper "saddlepoint approximations for rayleigh block fading channels")

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)