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: "degrees of freedom of the mimo interference channel with cooperation and cognition"
  Abstract: In this paper, we explore the benefits, in the sense of total (sum rate) degrees of freedom (DOF), of cooperation and cognitive message sharing for a two-user multiple-input-multiple-output (MIMO) Gaussian interference channel with $M_1$, $M_2$ antennas at transmitters and $N_1$, $N_2$ antennas at receivers. For the case of cooperation (including cooperation at transmitters only, at receivers only, and at transmitters as well as receivers), the DOF is $\min \{M_1+M_2, N_1+N_2, \max(M_1, N_2)), \max(M_2, N_1)\}$, which is the same as the DOF of the channel without cooperation. For the case of cognitive message sharing, the DOF is $\min \{M_1+M_2, N_1+N_2, (1-1_{T2})((1-1_{R2}) \max(M_1, N_2) + 1_{R2} (M_1+N_2)), (1-1_{T1})((1-1_{R1}) \max(M_2, N_1) + 1_{R1} (M_2+N_1)) \}$ where $1_{Ti} = 1$ $(0)$ when transmitter $i$ is (is not) a cognitive transmitter and $1_{Ri}$ is defined in the same fashion. Our results show that while both techniques may increase the sum rate capacity of the MIMO interference channel, only cognitive message sharing can increase the DOF. We also find that it may be more beneficial for a user to have a cognitive transmitter than to have a cognitive receiver.

Connected through hyperedge HE-1 (induced by source paper "cognitive radio networks an information theoretic perspective"):
  with members:
    - "noma an information theoretic perspective"
    - "non orthogonal multiple access common myths and critical questions"
    - "multi user cognitive interference channels a survey and new capacity results"
    - "massive mimo for next generation wireless systems"
    - "the capacity of less noisy cognitive interference channels"
    - "inner and outer bounds for the gaussian cognitive interference channel and new capacity results"
    - "the capacity of more capable cognitive interference channels"
    - "superposition coding based bounds and capacity for the cognitive z interference channels"

Connected through hyperedge HE-2 (induced by source paper "how much can d2d communication reduce content delivery latency in fog networks with edge caching"):
  with members:
    - "cloud aided interference management with cache enabled edge nodes and users"
    - "delivery time minimization in cache assisted broadcast relay wireless networks with imperfect csi"
    - "novel inter file coded placement and d2d delivery for a cache aided fog ran architecture"
    - "information theoretic analysis of d2d aided pipelined content delivery in fog ran"
    - "cache aided fog radio access networks with partial connectivity"
    - "fundamental latency limits for d2d aided content delivery in fog wireless networks"
    - "cloud edge non orthogonal transmission for fog networks with delayed csi at the cloud"
    - "fog aided wireless networks for content delivery fundamental latency tradeoffs"

Connected through hyperedge HE-3 (induced by source paper "topology optimization for 6g networks a network information theoretic approach"):
  with members:
    - "distributed user clustering and resource allocation for imperfect noma in heterogeneous networks"
    - "interference mitigation via rate splitting and common message decoding in cloud radio access networks"
    - "gaussian interference channel capacity to within one bit"

Connected through hyperedge HE-4 (induced by source paper "fundamental latency limits for d2d aided content delivery in fog wireless networks"):
  with members:
    - "fog aided wireless networks for content delivery fundamental latency tradeoffs"
    - "fundamental limits of cloud and cache aided interference management with multi antenna base stations"
    - "cache aided wireless networks tradeoffs between storage and latency"
    - "cache aided interference channels"
    - "a survey on device to device communication in cellular networks"
    - "real interference alignment exploiting the potential of single antenna systems"
    - "interference mitigation through limited receiver cooperation"

Connected through hyperedge HE-5 (induced by source paper "degrees of freedom of interference networks with transmitter side caches"):
  with members:
    - "the exact rate memory tradeoff for caching with uncoded prefetching"
    - "fog aided wireless networks for content delivery fundamental latency tradeoffs"
    - "decentralized coded caching in wireless networks trade off between storage and latency"
    - "fundamental tradeoff between storage and latency in cache aided wireless interference networks"
    - "degrees of freedom of cache aided wireless interference networks"
    - "decentralized coded caching with distinct cache capacities"
    - "cloud and cache aided wireless networks fundamental latency trade offs"
    - "cache aided wireless networks tradeoffs between storage and latency"

Connected through hyperedge HE-6 (induced by source paper "degrees of freedom of the mimo 2x2 interference network with general message sets"):
  with members:
    - "degrees of freedom region of the mimo x channel with an arbitrary number of antennas"
    - "the capacity region of the mimo interference channel and its reciprocity to within a constant gap"
    - "interference channels with common information"

Connected through hyperedge HE-7 (induced by source paper "multi user cognitive interference channels a survey and new capacity results"):
  with members:
    - "the two user causal cognitive interference channel novel outer bounds and constant gap result for the symmetric gaussian noise channel in weak interference"
    - "on the capacity region of the two user interference channel with a cognitive relay"
    - "real interference alignment exploiting the potential of single antenna systems"
    - "on the capacity of the two user gaussian causal cognitive interference channel"
    - "on the gaussian interference channel with half duplex causal cognition"
    - "multiuser cognitive radio networks an information theoretic perspective"
    - "approximate sum capacity of k user cognitive interference channels with cumulative message sharing"
    - "simultaneous nonunique decoding is rate optimal"

Connected through hyperedge HE-8 (induced by source paper "the degrees of freedom of the interference channel with a cognitive relay under delayed feedback"):
  with members:
    - "on the capacity region of the two user interference channel with a cognitive relay"
    - "degrees of freedom region of the mimo interference channel with output feedback and delayed csit"
    - "the degrees of freedom region of the mimo interference channel with hybrid csit"
    - "completely stale transmitter channel state information is still very useful"
    - "outer bounds for the interference channel with a cognitive relay"
    - "on the capacity of interference channels with one cooperating transmitter"

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)