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 "max sinr receiver for hmct systems over non stationary doubly dispersive channel"):
  Abstract: In this paper, a maximizing Signal-to-Interference plus-Noise Ratio (Max-SINR) receiver for Hexagonal Multicarrier Transmission (HMCT) system over non-stationary doubly dispersive (NSDD) channel is proposed. The closed-form timing offset expression of the prototype pulse for the proposed Max-SINR HMCT receiver over NSDD channel is derived. Simulation results show that the proposed Max-SINR receiver outperforms traditional projection scheme and obtains an approximation to the theoretical upper bound SINR performance within all the local stationarity regions (LSRs). Meanwhile, the SINR performance of the proposed Max-SINR HMCT receiver is robust to the estimation error between the estimated value and the real value of root mean square (RMS) delay spread.

Includes members:
  Member "time and frequency synchronization for multicarrier transmission on hexagonal time frequency lattice":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "timing and carrier synchronization in wireless communication systems a survey and classification of research in the last 5 years")
  Member "on max sinr receivers for hmt systems over a doubly dispersive channel":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "timing and carrier synchronization in wireless communication systems a survey and classification of research in the last 5 years")
  Member "on max sinr receiver for hexagonal multicarrier transmission over doubly dispersive channel":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "time and frequency synchronization for multicarrier transmission on hexagonal time frequency lattice")
  Member "soft output demodulation on frequency selective rayleigh fading channels using ar channel models":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "pulse shaping design for ofdm 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)