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: "dof region of the decentralized mimo broadcast channel unicode x2014 how many informed antennas do we need"
  Abstract: We study the impact of imperfect sharing of the Channel State Information (CSI) available at the transmitters on the capacity of the Network MIMO setting. In particular, we consider the setting in which a set of $M$ transmit antennas jointly serve two multi-antenna users, where only a subset of $k$ transmit antennas are endowed with perfect CSI whereas the other $M-k$ transmit antennas have only access to finite precision CSI. By analyzing this configuration we aim to answer the question of how much an extra informed antenna can help. We characterize the Degrees-of-Freedom (DoF) region of the $(M,N_1,N_2,k)$ Broadcast Channel (BC) and we show that only $k = \max(N_1,N_2)$ antennas with perfect CSI are needed to achieve the DoF of the conventional BC with perfect CSIT.

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)