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: "the unbounded benefit of encoder cooperation for the k user mac extended version"
  Abstract: Cooperation strategies can improve the performance of a network by allowing nodes to work together. Since these strategies are usually studied in small networks, it is not clear how their properties scale when applied to larger networks. This paper generalizes a cooperation model from the 2-user MAC to the $k$-user MAC extending prior capacity bounds and characterizing the set of all MACs where the gain in sum-capacity as a result of encoder cooperation is much larger than the total number of bits shared by the encoders in the cooperation process.

Connected through hyperedge HE-1 (induced by source paper "the unbounded benefit of encoder cooperation for the k user mac"):
  with members:
    - "on the impact of a single edge on the network coding capacity"
    - "on achievability for downlink cloud radio access networks with base station cooperation"
    - "can negligible cooperation increase network reliability"
    - "the multivariate covering lemma and its converse"

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)