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: "gaussian z interference channel with a relay link achievability region and asymptotic sum capacity"
  Abstract: This paper studies a Gaussian Z-interference channel with a rate-limited digital relay link from one receiver to another. Achievable rate regions are derived based on a combination of Han-Kobayashi common-private information splitting technique and several different relay strategies including compress-and-forward and a partial decode-and-forward strategy, in which the interference is partially decoded then binned and forwarded through the digital link for subtraction at the other end. For the Gaussian Z-interference channel with a digital link from the interference-free receiver to the interfered receiver, the capacity region is established in the strong interference regime; an achievable rate region is established in the weak interference regime. In the weak interference regime, the partial decode-and-forward strategy is shown to be asymptotically sum-capacity achieving in the high signal-to-noise ratio and high interference-to-noise ratio limit. In this case, each relay bit asymptotically improves the sum capacity by one bit. For the Gaussian Z-interference channel with a digital link from the interfered receiver to the interference-free receiver, the capacity region is established in the strong interference regime; achievable rate regions are established in the moderately strong and weak interference regimes. In addition, the asymptotically sum capacity is established in the limit of large relay link rate. In this case, the sum capacity improvement due to the digital link is bounded by half a bit when the interference link is weaker than certain threshold, but the sum capacity improvement becomes unbounded as the interference link becomes stronger.

Connected through hyperedge HE-1 (induced by source paper "on the secrecy capacity region of the 2 user z interference channel with unidirectional transmitter cooperation"):
  with members:
    - "outer bounds on the secrecy capacity region of the 2 user z interference channel with unidirectional transmitter cooperation"
    - "topological interference management through index coding"
    - "secrecy in the 2 user symmetric deterministic interference channel with transmitter cooperation"
    - "multiaccess channel with partially cooperating encoders and security constraints"
    - "interference alignment for secrecy"
    - "interference assisted secret communication"
    - "interference channels with source cooperation"
    - "interference mitigation through limited transmitter cooperation"

Connected through hyperedge HE-2 (induced by source paper "outer bounds on the secrecy capacity region of the 2 user z interference channel with unidirectional transmitter cooperation"):
  with members:
    - "on the secrecy capacity region of the 2 user z interference channel with unidirectional transmitter cooperation"
    - "secrecy in the 2 user symmetric deterministic interference channel with transmitter cooperation"
    - "multiaccess channel with partially cooperating encoders and security constraints"
    - "interference alignment for secrecy"
    - "interference assisted secret communication"
    - "interference channels with source cooperation"
    - "interference mitigation through limited transmitter cooperation"
    - "the approximate capacity region of the gaussian z interference channel with conferencing encoders"

Connected through hyperedge HE-3 (induced by source paper "novel outer bounds and capacity results for the interference channel with conferencing receivers"):
  with members:
    - "the capacity region of the wireless ergodic fading interference channel with partial csit to within one bit"
    - "the k user interference channel strong interference regime"
    - "on the capacity region of the two user interference channel"
    - "an outer bound for the memoryless two user interference channel with general cooperation"
    - "interference mitigation through limited transmitter cooperation"
    - "interference mitigation through limited receiver cooperation"
    - "compound multiple access channels with partial cooperation"
    - "on the symmetric gaussian interference channel with partial unidirectional cooperation"

Connected through hyperedge HE-4 (induced by source paper "interference channels with half duplex source cooperation"):
  with members:
    - "partial decode forward binning schemes for the causal cognitive relay channels"
    - "wireless network information flow a deterministic approach"
    - "interference channels with source cooperation"
    - "interference channels with destination cooperation"
    - "capacity bounds of half duplex gaussian cooperative interference channel"
    - "interference mitigation through limited receiver cooperation"
    - "capacity bounds for two hop interference networks"
    - "the two user gaussian interference channel a deterministic view"

Connected through hyperedge HE-5 (induced by source paper "two birds and one stone gaussian interference channel with a shared out of band relay of limited rate"):
  with members:
    - "wireless network information flow a deterministic approach"
    - "incremental relaying for the gaussian interference channel with a degraded broadcasting relay"
    - "the gaussian interference relay channel improved achievable rates and sum rate upperbounds using a potent relay"
    - "symmetric capacity of the gaussian interference channel with an out of band relay to within 1 15 bits"
    - "interference channel with an out of band relay"
    - "interference mitigation through limited receiver cooperation"
    - "interference relay channels part i transmission rates"
    - "the two user gaussian interference channel a deterministic view"

Connected through hyperedge HE-6 (induced by source paper "instantaneous relaying optimal strategies and interference neutralization"):
  with members:
    - "capacity of strong and very strong gaussian interference relay without delay channels"
    - "aligned interference neutralization and the degrees of freedom of the 2 user interference channel with instantaneous relay"
    - "rate region frontiers for n user interference channel with interference as noise"
    - "cooperative interference management with miso beamforming"
    - "aligned interference neutralization and the degrees of freedom of the 2x2x2 interference channel"
    - "interference alignment with asymmetric complex signaling settling the host madsen nosratinia conjecture"
    - "optimal beamforming for two way multi antenna relay channel with analogue network coding"
    - "transmission techniques for relay interference networks"

Connected through hyperedge HE-7 (induced by source paper "distributed full duplex via wireless side channels bounds and protocols"):
  with members:
    - "passive self interference suppression for full duplex infrastructure nodes"
    - "design and characterization of a full duplex multiantenna system for wifi networks"
    - "capacity of all nine models of channel output feedback for the two user interference channel"
    - "experiment driven characterization of full duplex wireless systems"
    - "pushing the limits of full duplex design and real time implementation"
    - "interference channels with one cognitive transmitter"
    - "gaussian interference channel capacity to within one bit"

Connected through hyperedge HE-8 (induced by source paper "incremental relaying for the gaussian interference channel with a degraded broadcasting relay"):
  with members:
    - "wireless network information flow a deterministic approach"
    - "the capacity region of the mimo interference channel and its reciprocity to within a constant gap"
    - "interference channels with source cooperation"
    - "the gaussian interference relay channel improved achievable rates and sum rate upperbounds using a potent relay"
    - "interference channels with destination cooperation"
    - "interference mitigation through limited transmitter cooperation"
    - "symmetric capacity of the gaussian interference channel with an out of band relay to within 1 15 bits"
    - "interference channel with an out of band relay"

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)