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: "symmetric capacity of the gaussian interference channel with an out of band relay to within 1 15 bits"
  Abstract: This work studies the Gaussian interference channel (IC) with a relay, which transmits and receives in a band that is orthogonal to the IC. The channel associated with the relay is thus an out-of-band relay channel (OBRC). The focus is on a symmetric channel model, in order to assess the fundamental impact of the OBRC on the signal interaction of the IC, in the simplest possible setting. First, the linear deterministic model is investigated and the sum capacity of this channel is established for all possible channel parameters. In particular, it is observed that the impact of OBRC, as its links get stronger, is similar to that of output feedback for the IC. The insights obtained from the deterministic model are then used to design achievable schemes for the Gaussian model. The interference links are classified as extremely strong, very strong, strong, moderate, weak, and very weak. For strong and moderate interference, separate encoding is near optimal. For very strong and extremely strong interference, the interference links provide side information to the destinations, which can help the transmission through the OBRC. For weak or very weak interference, an extension of the Han-Kobayashi scheme for the IC is utilized, where the messages are split into common and private. To achieve higher rates, it is beneficial to further split the common message into two parts, and the OBRC plays an important role in decoding the common message. It is shown that our strategy achieves the symmetric capacity to within 1.14625 bits per channel use with duplexing factor 0.5, and 1.27125 bits per channel use for arbitrary duplexing factors, for all channel parameters. An important observation from the constant gap result is that strong interference can be beneficial with the presence of an OBR.

Connected through hyperedge HE-1 (induced by source paper "capacity bounds for a class of interference relay channels"):
  with members:
    - "new outer bounds for the interference channel with unilateral source cooperation"
    - "mixed noisy network coding and cooperative unicasting in wireless networks"
    - "a new achievable scheme for interference relay channels"
    - "two birds and one stone gaussian interference channel with a shared out of band relay of limited rate"
    - "wireless network information flow a deterministic approach"
    - "incremental relaying for the gaussian interference channel with a degraded broadcasting relay"
    - "interference channels with source cooperation"
    - "the gaussian interference relay channel improved achievable rates and sum rate upperbounds using a potent relay"

Connected through hyperedge HE-2 (induced by source paper "cooperation for interference management a gdof perspective"):
  with members:
    - "the generalized degrees of freedom of the interference relay channel with strong interference"
    - "achieving net feedback gain in the butterfly network with a full duplex bidirectional relay"
    - "wireless network information flow a deterministic approach"
    - "the capacity of the interference channel with a cognitive relay in very strong interference"
    - "capacity to within 3 bits for a class of gaussian interference channels with a cognitive relay"
    - "the gaussian interference relay channel improved achievable rates and sum rate upperbounds using a potent relay"
    - "outer bounds for the interference channel with a cognitive relay"
    - "compute and forward harnessing interference through structured codes"

Connected through hyperedge HE-3 (induced by source paper "a relay can increase degrees of freedom in bursty mimo interference networks"):
  with members:
    - "a new achievable scheme for interference relay channels"
    - "two birds and one stone gaussian interference channel with a shared out of band relay of limited rate"
    - "the gaussian interference relay channel improved achievable rates and sum rate upperbounds using a potent relay"
    - "completely stale transmitter channel state information is still very useful"
    - "interference channel with an out of band relay"
    - "feedback capacity of the gaussian interference channel to within 2 bits"

Connected through hyperedge HE-4 (induced by source paper "power control and soft topology adaptations in multihop cellular networks with multi point connectivity"):
  with members:
    - "two birds and one stone gaussian interference channel with a shared out of band relay of limited rate"
    - "uplink multicell processing with limited backhaul via per base station successive interference cancellation"
    - "interference channel with an out of band relay"
    - "distributed power allocation strategies for parallel relay networks"
    - "gaussian interference channel capacity to within one bit"

Connected through hyperedge HE-5 (induced by source paper "on the capacity region of the two user interference channel with a cognitive relay"):
  with members:
    - "two birds and one stone gaussian interference channel with a shared out of band relay of limited rate"
    - "inner and outer bounds for the gaussian cognitive interference channel and new capacity results"
    - "wireless network information flow a deterministic approach"
    - "the capacity of the interference channel with a cognitive relay in very strong interference"
    - "capacity to within 3 bits for a class of gaussian interference channels with a cognitive relay"
    - "the gaussian interference relay channel improved achievable rates and sum rate upperbounds using a potent relay"
    - "on the capacity of the interference channel with a cognitive relay"
    - "interference mitigation through limited transmitter cooperation"

Connected through hyperedge HE-6 (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"
    - "interference channel with an out of band relay"
    - "gaussian z interference channel with a relay link achievability region and asymptotic sum capacity"
    - "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-7 (induced by source paper "guiding blind transmitters degrees of freedom optimal interference alignment using relays"):
  with members:
    - "degrees of freedom region of the mimo interference channel with output feedback and delayed csit"
    - "interference alignment for the mimo interference channel with delayed local csit"
    - "the degrees of freedom region and interference alignment for the mimo interference channel with delayed csi"
    - "the gaussian interference relay channel improved achievable rates and sum rate upperbounds using a potent relay"
    - "completely stale transmitter channel state information is still very useful"
    - "interference channel with an out of band relay"
    - "interference alignment with asymmetric complex signaling settling the host madsen nosratinia conjecture"
    - "degrees of freedom of the k user m times n mimo interference channel"

Connected through hyperedge HE-8 (induced by source paper "cooperative compute and forward"):
  with members:
    - "real interference alignment exploiting the potential of single antenna systems"
    - "phase precoding for the compute and forward protocol"
    - "structured lattice codes for some two user gaussian networks with cognition coordination and two hops"
    - "the approximate sum capacity of the symmetric gaussian k user interference channel"
    - "asynchronous physical layer network coding"
    - "compute and forward strategies for cooperative distributed antenna systems"
    - "a secure communication game with a relay helping the eavesdropper"
    - "wireless network information flow a deterministic approach"

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)