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 "transmission delay minimization in wireless powered communication systems"):
  Abstract: We study transmission delay minimization of a wireless powered communication (WPC) system in a point-to-point scenario with one hybrid access point (HAP) and one WPC node. In this type of communications, the HAP sends energy to the node at the downlink (DL) for a given time duration and the WPC node harvests enough radio frequency power. Then, at the uplink (UL) channel, the WPC node transmits its collected data in a given time duration to the HAP. Minimizing such round trip delay is our concern here. So, we have defined four optimization problems to minimize this delay by applying the optimal DL and UL time durations and also the optimal power at the HAP. These optimization problems are investigated here with thorough comparison of the obtained results. After that, we extend our study to the multiuser case with one HAP and K nodes and two different optimization problems are studied again in these cases.

Includes members:
  Member "power allocation and effective capacity of af successive relays":
    also connected through other hyperedges:
      (none)
  Member "optimization and analysis of wireless powered multi antenna cooperative systems":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "optimizing throughput fairness of cluster based cooperation in underlay cognitive wpcns")
  Member "cross layer optimization for ultra reliable and low latency radio access networks":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "robust urllc packet scheduling of ofdm systems")
  Member "wireless powered dual hop multi antenna relaying systems impact of csi and antenna correlation":
    also connected through other hyperedges:
      (none)
  Member "effective capacity of receive antenna selection mimo ostbc systems in co channel interference":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "multi objective antenna selection in a full duplex base station")
  Member "wireless charging technologies fundamentals standards and network applications":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "game theory for multi access edge computing survey use cases and future trends")
  Member "wireless powered communication networks an overview":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "wirelessly powered sensor networks power allocation for channel estimation and energy beamforming")
  Member "some new research trends in wirelessly powered communications":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "robust designs of beamforming and power splitting for distributed antenna systems with wireless energy harvesting")

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)