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: "maximizing the link throughput between smart meters and aggregators as secondary users under power and outage constraints"
  Abstract: This paper assesses the communication link from smart meters to aggregators as (unlicensed) secondary users that transmit their data over the (licensed) primary uplink channel. The proposed scenario assumes: (i) meters' and aggregators' positions are fixed so highly directional antennas are employed, (ii) secondary users transmit with limited power in relation to the primary, (iii) meters' transmissions are coordinated to avoid packet collisions, and (iv) the secondary links' robustness is guaranteed by an outage constraint. Under these assumptions, the interference caused by secondary users in both primary (base-stations) and other secondary users can be neglected. As unlicensed users, however, meter-aggregator links do experience interference from the mobile users of the primary network, whose positions and traffic activity are unknown. To cope with this uncertainty, we model the mobile users spatial distribution as a Poisson point process. We then derive a closed-form solution for the maximum achievable throughput with respect to a reference secondary link subject to transmit power and outage constraints. Our numerical results illustrate the effects of such constraints on the optimal throughput, evincing that more frequent outage events improve the system performance in the scenario under study. We also show that relatively high outage probabilities have little effect on the reconstruction of the average power demand curve that is transmitted from the smart meter to the aggregator.

Connected through hyperedge HE-1 (induced by source paper "hybrid resource scheduling for aggregation in massive machine type communication networks"):
  with members:
    - "finite blocklength communications in smart grids for dynamic spectrum access and locally licensed scenarios"
    - "massive multiple access based on superposition raptor codes for cellular m2m communications"
    - "massive non orthogonal multiple access for cellular iot potentials and limitations"
    - "aggregation and resource scheduling in machine type communication networks a stochastic geometry approach"
    - "spatiotemporal stochastic modeling of iot enabled cellular networks scalability and stability analysis"
    - "massive machine type communication with data aggregation and resource scheduling"
    - "asymptotics and approximation of the sir distribution in general cellular networks"
    - "optimizing data aggregation for uplink machine to machine communication networks"

Connected through hyperedge HE-2 (induced by source paper "finite blocklength communications in smart grids for dynamic spectrum access and locally licensed scenarios"):
  with members:
    - "ultra reliable cooperative short packet communications with wireless energy transfer"
    - "5g mobile cellular networks enabling distributed state estimation for smart grids"
    - "ultra reliable communication via optimum power allocation for type i arq in finite block length"
    - "convolutive superposition for multicarrier cognitive radio systems"
    - "massive machine type communications in 5g physical and mac layer solutions"
    - "contention based geographic forwarding strategies for wireless sensors networks"
    - "next generation m2m cellular networks challenges and practical considerations"
    - "a survey on internet of things from industrial market perspective"

Connected through hyperedge HE-3 (induced by source paper "energy efficiency of an unlicensed wireless network in the presence of retransmissions"):
  with members:
    - "increasing the throughput of an unlicensed wireless network through retransmissions"
    - "on the joint impact of beamwidth and orientation error on throughput in directional wireless poisson networks"
    - "throughput analysis of cognitive wireless networks with poisson distributed nodes based on location information"
    - "green cellular networks a survey some research issues and challenges"
    - "an overview of the transmission capacity of wireless networks"

Connected through hyperedge HE-4 (induced by source paper "event based electricity metering an autonomous method to determine transmission thresholds"):
  with members:
    - "models for the modern power grid"

Connected through hyperedge HE-5 (induced by source paper "aggregation and resource scheduling in machine type communication networks a stochastic geometry approach"):
  with members:
    - "massive multiple access based on superposition raptor codes for cellular m2m communications"
    - "massive non orthogonal multiple access for cellular iot potentials and limitations"
    - "grant free massive noma outage probability and throughput"
    - "data aggregation and packet bundling of uplink small packets for monitoring applications in lte"
    - "spatiotemporal stochastic modeling of iot enabled cellular networks scalability and stability analysis"
    - "energy efficient scheduling and grouping for machine type communications over cellular networks"
    - "a delay optimal mac and packet scheduler for heterogeneous m2m uplink"
    - "massive machine type communication with data aggregation and resource scheduling"

Connected through hyperedge HE-6 (induced by source paper "increasing the throughput of an unlicensed wireless network through retransmissions"):
  with members:
    - "on the joint impact of beamwidth and orientation error on throughput in directional wireless poisson networks"
    - "throughput analysis of cognitive wireless networks with poisson distributed nodes based on location information"
    - "interference networks with point to point codes"
    - "an overview of the transmission capacity of wireless networks"

Connected through hyperedge HE-7 (induced by source paper "throughput maximization in multi hop wireless networks under secrecy constraint"):
  with members:
    - "on the secrecy of interference limited networks under composite fading channels"
    - "on the performance of secure full duplex relaying under composite fading channels"
    - "enhanced transmit antenna selection scheme for secure throughput maximization without csi at the transmitter and its applications on smart grids"
    - "improving physical layer security in wireless communications using diversity techniques"
    - "principles of physical layer security in multiuser wireless networks a survey"
    - "five disruptive technology directions for 5g"
    - "an overview of the transmission capacity of wireless networks"
    - "on the throughput of secure hybrid arq protocols for gaussian block fading channels"

Connected through hyperedge HE-8 (induced by source paper "enhanced transmit antenna selection scheme for secure throughput maximization without csi at the transmitter and its applications on smart grids"):
  with members:
    - "on the performance of secure full duplex relaying under composite fading channels"
    - "rethinking the secrecy outage formulation a secure transmission design perspective"
    - "on the throughput of secure hybrid arq protocols for gaussian block fading channels"

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.SY(Systems and Control)