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: "dispersion analysis of infinite constellations in ergodic fading channels"
  Abstract: This thesis considers infinite constellations in fading channels, without power constraint and with perfect channel state information available at the receiver. Infinite constellations are the framework, proposed by Poltyrev, for analyzing coded modulation codes. The Poltyrev's capacity, is the highest achievable normalized log density (NLD) of codewords per unit volume, at possibly large block length, that guarantees a vanishing error probability. For a given finite block length and a fixed error probability, there is a gap between the highest achievable NLD and Poltyrev's capacity. The dispersion analysis quantifies asymptotically this gap. #R##N#The thesis begins by the dispersion analysis of infinite constellations in scalar fading channels. Later on, we extend the analysis to the case of multiple input multiple output fading channels. As in other channels, we show that the gap between the highest achievable NLD and the Poltyrev's capacity, vanishes asymptotically as the square root of the channel dispersion over the block length, multiplied by the inverse Q-function of the allowed error probability. #R##N#Moreover, exact terms for Poltyrev's capacity and channel dispersion, are derived in the thesis. The relations to the amplitude and to the power constrained fading channels are also discussed, especially in terms of capacity, channel dispersion and error exponents. These relations hint that in typical cases the unconstrained model can be interpreted as the limit of the constrained model, when the signal to noise ratio tends to infinity.

Connected through hyperedge HE-1 (induced by source paper "on the separability of ergodic fading mimo channels a lattice coding approach"):
  with members:
    - "lattice coding and decoding for multiple antenna ergodic fading channels"
    - "polar codes and polar lattices for independent fading channels"
    - "almost universal codes achieving ergodic mimo capacity within a constant gap"
    - "precoded integer forcing universally achieves the mimo capacity to within a constant gap"
    - "integer forcing linear receivers"
    - "compute and forward harnessing interference through structured codes"

Connected through hyperedge HE-2 (induced by source paper "lattice coding and decoding for multiple antenna ergodic fading channels"):
  with members:
    - "polar codes and polar lattices for independent fading channels"
    - "almost universal codes achieving ergodic mimo capacity within a constant gap"
    - "precoded integer forcing universally achieves the mimo capacity to within a constant gap"
    - "the approximate sum capacity of the symmetric gaussian k user interference channel"
    - "lattice codes for the gaussian relay channel decode and forward and compress and forward"
    - "integer forcing linear receivers"
    - "compute and forward harnessing interference through structured codes"

Connected through hyperedge HE-3 (induced by source paper "coherent multiple antenna block fading channels at finite blocklength"):
  with members:
    - "a beta beta achievability bound with applications"
    - "asymptotic estimates in information theory with non vanishing error probabilities"
    - "minimum energy to send k bits over multiple antenna fading channels"
    - "optimum power control at finite blocklength"
    - "bounds on the second order coding rate of the mimo rayleigh block fading channel"
    - "diversity versus channel knowledge at finite block length"

Connected through hyperedge HE-4 (induced by source paper "universal lattice codes for mimo channels"):
  with members:
    - "random ensembles of lattices from generalized reductions"
    - "awgn goodness is enough capacity achieving lattice codes based on dithered probabilistic shaping"
    - "algebraic lattice codes achieve the capacity of the compound block fading channel"
    - "almost universal codes for fading wiretap channels"
    - "adaptive compute and forward with lattice codes over algebraic integers"
    - "construction a of lattices over number fields and block fading wiretap coding"
    - "almost universal codes achieving ergodic mimo capacity within a constant gap"
    - "number field lattices achieve gaussian and rayleigh channel capacity within a constant gap"

Connected through hyperedge HE-5 (induced by source paper "algebraic lattice codes achieve the capacity of the compound block fading channel"):
  with members:
    - "adaptive compute and forward with lattice codes over algebraic integers"
    - "construction a of lattices over number fields and block fading wiretap coding"
    - "almost universal codes achieving ergodic mimo capacity within a constant gap"
    - "semantically secure lattice codes for the gaussian wiretap channel"
    - "precoded integer forcing universally achieves the mimo capacity to within a constant gap"
    - "achieving awgn channel capacity with lattice gaussian coding"
    - "fundamental limits of infinite constellations in mimo fading channels"

Connected through hyperedge HE-6 (induced by source paper "almost universal codes achieving ergodic mimo capacity within a constant gap"):
  with members:
    - "polar codes and polar lattices for independent fading channels"
    - "algebraic lattice codes achieve the capacity of the compound block fading channel"
    - "almost universal codes for fading wiretap channels"
    - "division algebra codes achieve mimo block fading channel capacity within a constant gap"
    - "number field lattices achieve gaussian and rayleigh channel capacity within a constant gap"
    - "precoded integer forcing universally achieves the mimo capacity to within a constant gap"
    - "inverse determinant sums and connections between fading channel information theory and algebra"
    - "fast decodable asymmetric space time codes from division algebras"

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)