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: "interference alignment for line of sight channels"
  Abstract: The fully connected K-user interference channel is studied in a multipath environment with bandwidth W. We show that when each link consists of D physical paths, the total spectral efficiency can grow {\it linearly} with K. This result holds not merely in the limit of large transmit power P, but for any fixed P, and is therefore a stronger characterization than degrees of freedom. It is achieved via a form of interference alignment in the time domain. A caveat of this result is that W must grow with K, a phenomenon we refer to as {\it bandwidth scaling}. Our insight comes from examining channels with single path links (D=1), which we refer to as line-of-sight (LOS) links. For such channels we build a time-indexed interference graph and associate the communication problem with finding its maximal independent set. This graph has a stationarity property that we exploit to solve the problem efficiently via dynamic programming. Additionally, the interference graph enables us to demonstrate the necessity of bandwidth scaling for any scheme operating over LOS interference channels. Bandwidth scaling is then shown to also be a necessary ingredient for interference alignment in the K-user interference channel.

Connected through hyperedge HE-1 (induced by source paper "cyclic interference alignment and cancellation in 3 user x networks with minimal backhaul"):
  with members:
    - "generalized degrees of freedom of the symmetric gaussian k user interference channel"
    - "transmission techniques for relay interference networks"
    - "a deterministic approach to wireless relay networks"

Connected through hyperedge HE-2 (induced by source paper "feasibility conditions of interference alignment via two orthogonal subcarriers"):
  with members:
    - "time interference alignment via delay offset for long delay networks"

Connected through hyperedge HE-3 (induced by source paper "delay rate tradeoff in ergodic interference alignment"):
  with members:
    - "the ergodic capacity of phase fading interference networks"
    - "interference alignment based sum capacity bounds for random dense gaussian interference networks"
    - "delay rate tradeoff for ergodic interference alignment in the gaussian case"
    - "asymptotic sum capacity of random gaussian interference networks using interference alignment"
    - "the feasibility of interference alignment over measured mimo ofdm channels"
    - "ergodic interference alignment"
    - "hierarchical cooperation achieves optimal capacity scaling in ad hoc networks"

Connected through hyperedge HE-4 (induced by source paper "interference mitigation in large random wireless networks"):
  with members:
    - "real interference alignment exploiting the potential of single antenna systems"
    - "boolean compressed sensing and noisy group testing"
    - "wireless network information flow a deterministic approach"
    - "interference alignment based sum capacity bounds for random dense gaussian interference networks"
    - "the approximate capacity of the many to one and one to many gaussian interference channels"
    - "neighbor discovery for wireless networks via compressed sensing"
    - "delay rate tradeoff for ergodic interference alignment in the gaussian case"
    - "asymptotic sum capacity of random gaussian interference networks using interference alignment"

Connected through hyperedge HE-5 (induced by source paper "time interference alignment via delay offset for long delay networks"):
  with members:
    - "asynchronous interference alignment"
    - "on feasibility of interference alignment in mimo interference networks"
    - "on feasibility of interference alignment in mimo interference networks"
    - "the feasibility of interference alignment over measured mimo ofdm channels"
    - "approaching the capacity of wireless networks through distributed interference alignment"
    - "interference alignment on the deterministic channel and application to fully connected awgn interference networks"

Connected through hyperedge HE-6 (induced by source paper "the wideband slope of interference channels the large bandwidth case"):
  with members:
    - "k user interference channels general outer bound and sum capacity for certain gaussian channels"
    - "interference alignment for the k user mimo interference channel"
    - "capacity regions and sum rate capacities of vector gaussian interference channels"
    - "real interference alignment with real numbers"
    - "a new outer bound and the noisy interference sum rate capacity for gaussian interference channels"
    - "interference alignment with asymmetric complex signaling settling the host madsen nosratinia conjecture"
    - "capacity bounds for the gaussian interference channel"
    - "approaching the capacity of wireless networks through distributed interference alignment"

Connected through hyperedge HE-7 (induced by source paper "exploiting channel correlations simple interference alignment schemes with no csit"):
  with members:
    - "error exponents for the gaussian channel with active noisy feedback"
    - "real interference alignment with real numbers"
    - "on the degrees of freedom of the k user gaussian interference channel"
    - "on degrees of freedom region of mimo networks without csit"
    - "ergodic interference alignment"
    - "interference alignment with asymmetric complex signaling settling the host madsen nosratinia conjecture"
    - "capacity of symmetric k user gaussian very strong interference channels"
    - "on the capacity of fading mimo broadcast channels with imperfect transmitter side information"

Connected through hyperedge HE-8 (induced by source paper "asynchronous interference alignment"):
  with members:
    - "real interference alignment exploiting the potential of single antenna systems"
    - "ergodic interference alignment"
    - "a new outer bound and the noisy interference sum rate capacity for gaussian interference channels"
    - "interference alignment with asymmetric complex signaling settling the host madsen nosratinia conjecture"
    - "capacity bounds for the gaussian interference channel"
    - "gaussian interference channel capacity to within one bit"
    - "interference alignment and the degrees of freedom for the k user interference channel"
    - "diversity multiplexing tradeoff of asynchronous cooperative diversity in wireless networks"

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)