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: "ultra reliable cooperative short packet communications with wireless energy transfer"
  Abstract: We analyze a cooperative wireless communication system with finite block length and finite battery energy, under quasi-static Rayleigh fading. Source and relay nodes are powered by a wireless energy transfer (WET) process, while using the harvested energy to feed their circuits, send pilot signals to estimate channels at receivers, and for wireless information transmission (WIT). Other power consumption sources beyond data transmission power are considered. The error probability is investigated under perfect/imperfect channel state information (CSI), while reaching accurate closed-form approximations in ideal direct communication system setups. We consider ultra-reliable communication (URC) scenarios under discussion for the next fifth-generation (5G) of wireless systems. The numerical results show the existence of an optimum pilot transmit power for channel estimation, which increases with the harvested energy. We also show the importance of cooperation, even taking into account the multiplexing loss, in order to meet the error and latency constraints of the URC systems.

Connected through hyperedge HE-1 (induced by source paper "random access based reliable uplink communication and power transfer using dynamic power splitting"):
  with members:
    - "joint uplink and downlink resource configuration for ultra reliable and low latency communications"
    - "on the beneficial roles of fading and transmit diversity in wireless power transfer with nonlinear energy harvesting"
    - "integration of satellites in 5g through leo constellations"
    - "ultra reliable and low latency communication in mmwave enabled massive mimo networks"
    - "low power wide area networks an overview"
    - "practical non linear energy harvesting model and resource allocation for swipt systems"
    - "joint transmit beamforming and receive power splitting for miso swipt systems"
    - "wireless information and power transfer a dynamic power splitting approach"

Connected through hyperedge HE-2 (induced by source paper "rate control for wireless powered communication network with reliability and delay constraints"):
  with members:
    - "statistical analysis of multiple antenna strategies for wireless energy transfer"
    - "spectral and energy efficient wireless powered iot networks noma or tdma"
    - "ultra reliable and low latency communications in 5g downlink physical layer aspects"
    - "wireless powered relaying with finite block length codes"
    - "arq with adaptive feedback for energy harvesting receivers"
    - "wirelessly powered communication networks with short packets"
    - "practical non linear energy harvesting model and resource allocation for swipt systems"
    - "subblock constrained codes for real time simultaneous energy and information transfer"

Connected through hyperedge HE-3 (induced by source paper "joint power control and rate allocation enabling ultra reliability and energy efficiency in simo wireless networks"):
  with members:
    - "distributed rate control in downlink noma networks with reliability constraints"
    - "rate control under finite blocklength for downlink cellular networks with reliability constraints"
    - "distributed optimization for energy efficient fog computing in the tactile internet"
    - "energy latency tradeoff in ultra reliable low latency communication with retransmissions"
    - "joint uplink and downlink resource configuration for ultra reliable and low latency communications"
    - "ultra reliable and low latency communications in 5g downlink physical layer aspects"
    - "on the effective energy efficiency of ultra reliable networks in the finite blocklength regime"
    - "realizing the tactile internet haptic communications over next generation 5g cellular networks"

Connected through hyperedge HE-4 (induced by source paper "statistical analysis of multiple antenna strategies for wireless energy transfer"):
  with members:
    - "rate control for wireless powered communication network with reliability and delay constraints"
    - "fundamentals of wireless information and power transfer from rf energy harvester models to signal and system designs"
    - "on the beneficial roles of fading and transmit diversity in wireless power transfer with nonlinear energy harvesting"
    - "wireless information and power transfer nonlinearity waveform design and rate energy tradeoff"
    - "on the performance of multi antenna wireless powered communications with energy beamforming"
    - "wireless powered communication networks an overview"
    - "communications and signals design for wireless power transmission"
    - "wireless powered communication opportunities and challenges"

Connected through hyperedge HE-5 (induced by source paper "finite blocklength communications in smart grids for dynamic spectrum access and locally licensed scenarios"):
  with members:
    - "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"
    - "maximizing the link throughput between smart meters and aggregators as secondary users under power and outage constraints"
    - "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-6 (induced by source paper "rate control under finite blocklength for downlink cellular networks with reliability constraints"):
  with members:
    - "ultra reliable and low latency communications in 5g downlink physical layer aspects"
    - "ultra reliable short message cooperative relaying protocols under nakagami m fading"
    - "minimum energy to send k bits over multiple antenna fading channels"
    - "ultra reliable communication in 5g wireless systems"

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.IT(Information Theory)