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: "surveillance and intervention of infrastructure free mobile communications a new wireless security paradigm"
  Abstract: Conventional wireless security assumes wireless communications are rightful and aims to protect them against malicious eavesdropping and jamming attacks. However, emerging infrastructure-free mobile communication networks are likely to be illegally used (e.g., by criminals or terrorists) but difficult to be monitored, thus imposing new challenges on the public security. To tackle this issue, this article presents a paradigm shift of wireless security to the surveillance and intervention of infrastructure-free suspicious and malicious wireless communications, by exploiting legitimate eavesdropping and jamming jointly. In particular, {\emph{proactive eavesdropping}} (via jamming) is proposed to intercept and decode information from suspicious communication links for the purpose of inferring their intentions and deciding further measures against them. {\emph{Cognitive jamming}} (via eavesdropping) is also proposed so as to disrupt, disable, and even spoof the targeted malicious wireless communications to achieve various intervention tasks.

Connected through hyperedge HE-1 (induced by source paper "cognitive wireless power transfer in the presence of reactive primary communication user"):
  with members:
    - "fundamentals of wireless information and power transfer from rf energy harvester models to signal and system designs"
    - "large scale multiantenna multisine wireless power transfer"
    - "distributed wireless power transfer with energy feedback"
    - "joint offloading and computing optimization in wireless powered mobile edge computing systems"
    - "waveform optimization for radio frequency wireless power transfer"
    - "waveform design for wireless power transfer"
    - "a general design framework for mimo wireless energy transfer with limited feedback"
    - "wireless powered communication networks an overview"

Connected through hyperedge HE-2 (induced by source paper "jamming assisted eavesdropping over parallel fading channels"):
  with members:
    - "multi antenna wireless legitimate surveillance systems design and performance analysis"
    - "proactive eavesdropping via jamming over harq based communications"
    - "wireless information surveillance via proactive eavesdropping with spoofing relay"
    - "a survey on wireless security technical challenges recent advances and future trends"
    - "proactive eavesdropping via cognitive jamming in fading channels"
    - "improving physical layer security in wireless communications using diversity techniques"
    - "proactive eavesdropping via jamming for rate maximization over rayleigh fading channels"
    - "physical layer security for massive mimo an overview on passive eavesdropping and active attacks"

Connected through hyperedge HE-3 (induced by source paper "safeguarding wireless network with uavs a physical layer security perspective"):
  with members:
    - "securing uav communications via joint trajectory and power control"
    - "secure uav communication with cooperative jamming and trajectory control"
    - "joint trajectory and communication design for multi uav enabled wireless networks"
    - "wireless communications with unmanned aerial vehicles opportunities and challenges"
    - "secure massive mimo transmission with an active eavesdropper"
    - "principles of physical layer security in multiuser wireless networks a survey"

Connected through hyperedge HE-4 (induced by source paper "joint communication and control for wireless autonomous vehicular platoon systems"):
  with members:
    - "deep learning for reliable mobile edge analytics in intelligent transportation systems"
    - "modeling and dimensioning of a virtualized mme for 5g mobile networks"
    - "millimeter wave v2v communications distributed association and beam alignment"
    - "coverage analysis of a vehicular network modeled as cox process driven by poisson line process"
    - "coverage and rate analysis for millimeter wave cellular networks"

Connected through hyperedge HE-5 (induced by source paper "engineering radio map for wireless resource management"):
  with members:
    - "introduction to online convex optimization"
    - "wireless communications with unmanned aerial vehicles opportunities and challenges"

Connected through hyperedge HE-6 (induced by source paper "proactive eavesdropping via jamming over harq based communications"):
  with members:
    - "multi antenna wireless legitimate surveillance systems design and performance analysis"
    - "wireless surveillance of two hop communications"
    - "wireless information surveillance via proactive eavesdropping with spoofing relay"
    - "a survey on wireless security technical challenges recent advances and future trends"
    - "proactive eavesdropping via cognitive jamming in fading channels"
    - "proactive eavesdropping via jamming for rate maximization over rayleigh fading channels"
    - "in band full duplex wireless challenges and opportunities"

Connected through hyperedge HE-7 (induced by source paper "wireless surveillance of two hop communications"):
  with members:
    - "wireless information surveillance via proactive eavesdropping with spoofing relay"
    - "a survey on wireless security technical challenges recent advances and future trends"
    - "fundamental rate limits of physical layer spoofing"
    - "wireless communications with unmanned aerial vehicles opportunities and challenges"
    - "proactive eavesdropping via cognitive jamming in fading channels"
    - "physical layer security for massive mimo an overview on passive eavesdropping and active attacks"

Connected through hyperedge HE-8 (induced by source paper "transmit optimization for symbol level spoofing"):
  with members:
    - "wireless surveillance of two hop communications"
    - "wireless information surveillance via proactive eavesdropping with spoofing relay"
    - "a survey on wireless security technical challenges recent advances and future trends"
    - "directional modulation via symbol level precoding a way to enhance security"
    - "proactive eavesdropping via cognitive jamming in fading channels"
    - "active eavesdropping via spoofing relay attack"
    - "proactive eavesdropping via jamming for rate maximization over rayleigh fading channels"
    - "constructive multiuser interference in symbol level precoding for the miso downlink channel"

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)