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 "limited feedback over temporally correlated channels for the downlink of a femtocell network"):
  Abstract: Heterogeneous networks are a flexible deployment model that rely on low power nodes to improve the user broadband experience in a cost effective manner. Femtocells are an integral part of heterogeneous networks, whose main purpose is to improve the indoor capacity. When restricting access to home users, femtocells cause a substantial interference problem that cannot be mitigated through coordination with the macrocell base station. In this paper, we analyze multiple antenna communication on the downlink of a macrocell network, with femtocell overlay. We evaluate the feasibility of limited feedback beamforming given delay on the feedback channel, quantization error and uncoordinated interference from the femtocells. We model the femtocell spatial distribution as a Poisson point process and the temporal correlation of the channel according to a Gauss-Markov model. We derive the probability of outage at the macrocell users as a function of the temporal correlation, the femtocell density, and the feedback rate. We propose rate backoff to maximize the average achievable rate in the network. Simulation results show that limited feedback beamforming is a viable solution for femtocell networks despite the CSI inaccuracy and the interference. They illustrate how properly designed rate backoff improves the achievable rate of the macrocell system.

Includes members:
  Member "multi antenna communication in ad hoc networks achieving mimo gains with simo transmission":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "area spectral efficiency and sinr scaling laws in multi antenna cellular networks")
  Member "goodput maximization in cooperative networks with arq":
    also connected through other hyperedges:
      (none)
  Member "asymptotic spectral efficiency of multi antenna links in wireless networks with limited tx csi":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "downlink sdma with limited feedback in interference limited wireless networks")
  Member "open vs closed access femtocells in the uplink":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "a game theoretical approach for qos provisioning in heterogeneous networks")
  Member "limited feedback for temporally correlated mimo channels with other cell interference":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "on the optimal feedback rate in interference limited multi antenna cellular systems")
  Member "transmission capacity of ad hoc networks with multiple antennas using transmit stream adaptation and interference cancelation":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "performance analysis of outdoor mmwave ad hoc networks")
  Member "mode switching for the multi antenna broadcast channel based on delay and channel quantization":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "delay performance of the multiuser miso downlink under imperfect csi and finite length coding")
  Member "coding versus arq in fading channels how reliable should the phy be":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "short packet transmission via variable length codes in the presence of noisy stop feedback")

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)