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: "joint transmit beamforming and receive power splitting for miso swipt systems"
  Abstract: This paper studies a multi-user multiple-input single-output (MISO) downlink system for simultaneous wireless information and power transfer (SWIPT), in which a set of single-antenna mobile stations (MSs) receive information and energy simultaneously via power splitting (PS) from the signal sent by a multi-antenna base station (BS). We aim to minimize the total transmission power at BS by jointly designing transmit beamforming vectors and receive PS ratios for all MSs under their given signal-to-interference-plus-noise ratio (SINR) constraints for information decoding and harvested power constraints for energy harvesting. First, we derive the sufficient and necessary condition for the feasibility of our formulated problem. Next, we solve this non-convex problem by applying the technique of semidefinite relaxation (SDR). We prove that SDR is indeed tight for our problem and thus achieves its global optimum. Finally, we propose two suboptimal solutions of lower complexity than the optimal solution based on the principle of separating the optimization of transmit beamforming and receive PS, where the zero-forcing (ZF) and the SINR-optimal based transmit beamforming schemes are applied, respectively.

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"
    - "ultra reliable cooperative short packet communications with wireless energy transfer"
    - "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"
    - "wireless information and power transfer a dynamic power splitting approach"

Connected through hyperedge HE-2 (induced by source paper "an energy efficient controller for wirelessly powered communication networks"):
  with members:
    - "swipt using hybrid arq over time varying channels"
    - "optimal and near optimal policies for wireless power transfer in energy limited and power limited scenarios"
    - "joint sum rate and error probability optimization finite blocklength analysis"
    - "joint transfer of energy and information in a two hop relay channel"
    - "optimal energy and data routing in networks with energy cooperation"
    - "battery powered devices in wpcns"
    - "wireless powered relaying with finite block length codes"
    - "on wireless energy and information transfer in relay networks"

Connected through hyperedge HE-3 (induced by source paper "specific absorption rate aware beamforming in miso downlink swipt systems"):
  with members:
    - "signal and system design for wireless power transfer prototype experiment and validation"
    - "fundamentals of wireless information and power transfer from rf energy harvester models to signal and system designs"
    - "a learning approach to wireless information and power transfer signal and system design"
    - "wireless information and power transfer over an awgn channel nonlinearity and asymmetric gaussian signaling"
    - "robust resource allocation for mimo wireless powered communication networks based on a non linear eh model"
    - "waveform design for wireless power transfer"
    - "wireless information and power transfer nonlinearity waveform design and rate energy tradeoff"
    - "safe and secure wireless power transfer networks challenges and opportunities in rf based systems"

Connected through hyperedge HE-4 (induced by source paper "fog assisted multi user swipt networks local computing or offloading"):
  with members:
    - "group cooperation with optimal resource allocation in wireless powered communication networks"
    - "simultaneous wireless information and power transfer in cooperative relay networks with rateless codes"
    - "capacity region of gaussian multiple access channels with energy harvesting and energy cooperation"
    - "joint offloading and computing optimization in wireless powered mobile edge computing systems"
    - "joint computation and communication cooperation for mobile edge computing"
    - "transceiver design to maximize the weighted sum secrecy rate in full duplex swipt systems"
    - "energy efficient resource allocation for mobile edge computation offloading"
    - "power delay tradeoff in multi user mobile edge computing systems"

Connected through hyperedge HE-5 (induced by source paper "uav swarm enabled aerial comp a physical layer security perspective"):
  with members:
    - "maritime coverage enhancement using uavs coordinated with hybrid satellite terrestrial networks"
    - "uav communications for 5g and beyond recent advances and future trends"
    - "robust trajectory and transmit power design for secure uav communications"
    - "energy efficient uav communication with trajectory optimization"
    - "linear precoding of data and artificial noise in secure massive mimo systems"
    - "wireless communications with unmanned aerial vehicles opportunities and challenges"
    - "on the security of the automatic dependent surveillance broadcast protocol"
    - "spatially selective artificial noise aided transmit optimization for miso multi eves secrecy rate maximization"

Connected through hyperedge HE-6 (induced by source paper "robust designs of beamforming and power splitting for distributed antenna systems with wireless energy harvesting"):
  with members:
    - "beamforming and power splitting designs for an aided secure multi user mimo swipt systems"
    - "some new research trends in wirelessly powered communications"
    - "robust beamforming for secure communication in systems with wireless information and power transfer"
    - "secure and green swipt in distributed antenna networks with limited backhaul capacity"
    - "application of smart antenna technologies in simultaneous wireless information and power transfer"
    - "transmission schemes based on sum rate analysis in distributed antenna systems"
    - "mimo broadcasting for simultaneous wireless information and power transfer"
    - "outage constrained robust transmit optimization for multiuser miso downlinks tractable approximations by conic optimization"

Connected through hyperedge HE-7 (induced by source paper "mixed timescale beamforming and power splitting for massive mimo aided swipt iot network"):
  with members:
    - "two timescale hybrid compression and forward for massive mimo aided c ran"
    - "fractional programming for communication systems part ii uplink scheduling via matching"
    - "on the ergodic rate lower bounds with applications to massive mimo"
    - "practical non linear energy harvesting model and resource allocation for swipt systems"
    - "mimo broadcasting for simultaneous wireless information and power transfer"

Connected through hyperedge HE-8 (induced by source paper "robust energy efficient beamforming in misome swipt systems with proportional secrecy rate"):
  with members:
    - "robust secrecy energy efficient beamforming in misome swipt systems with proportional fairness"
    - "rf based energy harvesting in decode and forward relaying systems ergodic and outage capacities"
    - "secure beamforming in full duplex swipt systems with loopback self interference cancellation"
    - "large scale multiantenna multisine wireless power transfer"
    - "dynamic cross layer beamforming in hybrid powered communication systems with harvest use trade strategy"
    - "joint optimization of power and data transfer in multiuser mimo systems"
    - "robust resource allocation for mimo wireless powered communication networks based on a non linear eh model"
    - "network densification in 5g from the short range communications perspective"

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)