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: "noncoherent capacity of underspread fading channels"
  Abstract: We derive bounds on the noncoherent capacity of wide-sense stationary uncorrelated scattering (WSSUS) channels that are selective both in time and frequency, and are underspread, i.e., the product of the channel's delay spread and Doppler spread is small. The underspread assumption is satisfied by virtually all wireless communication channels. For input signals that are peak constrained in time and frequency, we obtain upper and lower bounds on capacity that are explicit in the channel's scattering function, are accurate for a large range of bandwidth, and allow to coarsely identify the capacity-optimal bandwidth as a function of the peak power and the channel's scattering function. We also obtain a closed-form expression for the first-order Taylor series expansion of capacity in the infinite-bandwidth limit, and show that our bounds are tight in the wideband regime. For input signals that are peak constrained in time only (and, hence, allowed to be peaky in frequency), we provide upper and lower bounds on the infinite-bandwidth capacity. Our lower bound is closely related to a result by Viterbi (1967). We find cases where the bounds coincide and, hence, the infinite-bandwidth capacity is characterized exactly. The analysis in this paper is based on a discrete-time discrete-frequency approximation of WSSUS time- and frequency-selective channels. This discretization takes the underspread property of the channel explicitly into account.

Connected through hyperedge HE-1 (induced by source paper "interference cancellation and iterative detection for orthogonal time frequency space modulation"):
  with members:
    - "otfs a new generation of modulation addressing the challenges of 5g"
    - "a simple two stage equalizer with simplified orthogonal time frequency space modulation over rapidly time varying channels"
    - "analysis of discrete time mimo ofdm based orthogonal time frequency space modulation"
    - "low complexity modem structure for ofdm based orthogonal time frequency space modulation"
    - "low complexity detection in large dimension mimo isi channels using graphical models"

Connected through hyperedge HE-2 (induced by source paper "a scalable and statistically robust beam alignment technique for mm wave systems"):
  with members:
    - "millimeter wave mimo channel estimation using overlapped beam patterns and rate adaptation"
    - "robust nonnegative sparse recovery and the nullspace property of 0 1 measurements"
    - "channel estimation for hybrid architecture based wideband millimeter wave systems"
    - "hybrid beamforming for massive mimo a survey"
    - "compressed sensing based multi user millimeter wave systems how many measurements are needed"
    - "hybrid mimo architectures for millimeter wave communications phase shifters or switches"
    - "the impact of beamwidth on temporal channel variation in vehicular channels and its implications"
    - "channel estimation and hybrid precoding for millimeter wave cellular systems"

Connected through hyperedge HE-3 (induced by source paper "unified capacity limit of non coherent wideband fading channels"):
  with members:
    - "millimeter wave cellular wireless networks potentials and challenges"
    - "millimeter wave channel modeling and cellular capacity evaluation"
    - "on the sensitivity of continuous time noncoherent fading channel capacity"
    - "low snr capacity of noncoherent fading channels"
    - "capacity per unit energy of fading channels with a peak constraint"

Connected through hyperedge HE-4 (induced by source paper "on the sample complexity of graphical model selection for non stationary processes"):
  with members:
    - "network lasso clustering and optimization in large graphs"
    - "the distortion rate function of cyclostationary gaussian processes"
    - "information theoretic limits of selecting binary graphical models in high dimensions"
    - "consistency of the group lasso and multiple kernel learning"

Connected through hyperedge HE-5 (induced by source paper "how much spectrum is too much in millimeter wave wireless access"):
  with members:
    - "modeling and analyzing millimeter wave cellular systems"
    - "unified capacity limit of non coherent wideband fading channels"
    - "gbps user rates using mmwave relayed backhaul with high gain antennas"
    - "millimeter wave channel modeling and cellular capacity evaluation"

Connected through hyperedge HE-6 (induced by source paper "minimum energy to send k bits over multiple antenna fading channels"):
  with members:
    - "a beta beta achievability bound with applications"
    - "short packet communications over multiple antenna rayleigh fading channels"
    - "asymptotic estimates in information theory with non vanishing error probabilities"
    - "joint source channel coding with feedback"
    - "optimum power control at finite blocklength"
    - "quasi static multiple antenna fading channels at finite blocklength"
    - "diversity versus channel knowledge at finite block length"
    - "proof of the outage probability conjecture for miso channels"

Connected through hyperedge HE-7 (induced by source paper "coding theorem and converse for abstract channels with time structure and memory"):
  with members:
    - "the szeg o asymptotics for doubly dispersive gaussian channels"
    - "directed information causal estimation and communication in continuous time"
    - "on the sensitivity of continuous time noncoherent fading channel capacity"
    - "on multipath fading channels at high snr"

Connected through hyperedge HE-8 (induced by source paper "waterfilling theorems for linear time varying channels and related nonstationary sources"):
  with members:
    - "the distortion rate function of cyclostationary gaussian processes"
    - "waterfilling theorems in the time frequency plane for the heat channel and a related source"
    - "eigenvalue estimates and mutual information for the linear time varying channel"

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)