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 "degrees of freedom region of miso ofdma broadcast channel with imperfect csit"):
  Abstract: This contribution investigates the Degrees-of-Freedom region of a two-user frequency correlated Multiple-Input-Single-Output (MISO) Broadcast Channel (BC) with imperfect Channel State Information at the transmitter (CSIT). We assume that the system consists of an arbitrary number of subbands, denoted as $L$. Besides, the CSIT state varies across users and subbands. A tight outer-bound is found as a function of the minimum average CSIT quality between the two users. Based on the CSIT states across the subbands, the DoF region is interpreted as a weighted sum of the optimal DoF regions in the scenarios where the CSIT of both users are perfect, alternatively perfect and not known. Inspired by the weighted-sum interpretation and identifying the benefit of the optimal scheme for the unmatched CSIT proposed by Chen et al., we also design a scheme achieving the upper-bound for the general $L$-subband scenario in frequency domain BC, thus showing the optimality of the DoF region.

Includes members:
  Member "optimal dof region of the two user miso bc with general alternating csit":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "on the separability of parallel miso broadcast channels under partial csit a degrees of freedom region perspective")
  Member "symmetric two user mimo bc and ic with evolving feedback":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "achieving full dof in heterogeneous parallel broadcast channels with outdated csit")
  Member "on the degrees of freedom of the k user time correlated broadcast channel with delayed csit":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "coded federated computing in wireless networks with straggling devices and imperfect csi")
  Member "imperfect and unmatched csit is still useful for the frequency correlated miso broadcast channel":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "feedback aided coded caching for the miso bc with small caches")
  Member "miso broadcast channel with imperfect and un matched csit in the frequency domain dof region and transmission strategies":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "multiuser millimeter wave beamforming strategies with quantized and statistical csit")
  Member "degrees of freedom of time correlated miso broadcast channel with delayed csit":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "rate splitting for multi antenna downlink precoder design and practical implementation")
  Member "toward the performance vs feedback tradeoff for the two user miso broadcast channel":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "optimal dof region of the two user miso bc with general alternating csit")
  Member "degrees of freedom region of the miso broadcast channel with general mixed csit":
    also connected through other hyperedges:
      - Hyperedge HE-8 (induced by source paper "resolving a feedback bottleneck of multi antenna coded caching")

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)