human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "cell associations that maximize the average uplink downlink degrees of freedom"):
  Abstract: We study the problem of associating mobile terminals to base stations in a linear interference network, with the goal of maximizing the average rate achieved over both the uplink and downlink sessions. The cell association decision is made at a centralized cloud level, with access to global network topology information. More specifically, given the constraint that each mobile terminal can be associated to a maximum of N base stations at once, we characterize the maximum achievable pre-log factor (degrees of freedom) and the corresponding cell association pattern. Interestingly, the result indicates that for the case where N > 1, the optimal cell association guarantees the achievability of the maximum uplink rate even when optimizing for the uplink alone, and for the case where N=1, the optimal cell association is that of the downlink. Hence, this work draws attention to the question of characterizing network topologies for which the problem can be simplified by optimizing only for the uplink or only for the downlink.

Includes members:
  Member "layered downlink precoding for c ran systems with full dimensional mimo":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "optimization of massive full dimensional mimo for positioning and communication")
  Member "conferencing in wyner s asymmetric interference network effect of number of rounds":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "joint uplink downlink cell associations for interference networks with local connectivity")
  Member "performance of cloud radio networks":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "joint uplink downlink cell associations for interference networks with local connectivity")
  Member "on uplink downlink duality for cellular ia":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "cellular interference alignment omni directional antennas and asymmetric configurations")
  Member "degrees of freedom of uplink downlink multiantenna cellular networks":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "linear degrees of freedom of mimo broadcast channels with reconfigurable antennas in the absence of csit")
  Member "cellular interference alignment":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "degrees of freedom of cache aided wireless cellular networks")
  Member "dynamic interference management":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "fundamental limits of dynamic interference management with flexible message assignments")
  Member "degrees of freedom of interference channels with comp transmission and reception":
    also connected through other hyperedges:
      - Hyperedge HE-8 (induced by source paper "degrees of freedom of cache aided wireless cellular networks")

Question: Please tell me which class the source paper 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)