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: "secrecy outage analysis for downlink transmissions in the presence of randomly located eavesdroppers"
  Abstract: We analyze the secrecy outage probability in the downlink for wireless networks with spatially (Poisson) distributed eavesdroppers (EDs) under the assumption that the base station employs transmit antenna selection (TAS) to enhance secrecy performance. We compare the cases where the receiving user equipment (UE) operates in half-duplex (HD) mode and full-duplex (FD) mode. In the latter case, the UE simultaneously receives the intended downlink message and transmits a jamming signal to strengthen secrecy. We investigate two models of (semi)passive eavesdropping: (1) EDs act independently and (2) EDs collude to intercept the transmitted message. For both of these models, we obtain expressions for the secrecy outage probability in the downlink for HD and FD UE operation. The expressions for HD systems have very accurate approximate or exact forms in terms of elementary and/or special functions for all path loss exponents. Those related to the FD systems have exact integral forms for general path loss exponents, while exact closed forms are given for specific exponents. A closed-form approximation is also derived for the FD case with colluding EDs. The resulting analysis shows that the reduction in the secrecy outage probability is logarithmic in the number of antennas used for TAS and identifies conditions under which HD operation should be used instead of FD jamming at the UE. These performance trends and exact relations between system parameters can be used to develop adaptive power allocation and duplex operation methods in practice. Examples of such techniques are alluded to herein.

Connected through hyperedge HE-1 (induced by source paper "adaptive full duplex jamming receiver for secure d2d links in random networks"):
  with members:
    - "exploiting full duplex receivers for achieving secret communications in multiuser miso networks"
    - "modeling and analysis of cellular networks using stochastic geometry a tutorial"
    - "safeguarding decentralized wireless networks using full duplex jamming receivers"
    - "physical layer security in heterogeneous networks with jammer selection and full duplex users"
    - "physical layer security in heterogeneous cellular networks"
    - "a survey on device to device communication in cellular networks"
    - "passive self interference suppression for full duplex infrastructure nodes"
    - "improving physical layer secrecy using full duplex jamming receivers"

Connected through hyperedge HE-2 (induced by source paper "secure transmit antenna selection protocol for mimo noma networks over nakagami m channels"):
  with members:
    - "nonorthogonal multiple access in large scale underlay cognitive radio networks"
    - "on secrecy performance of antenna selection aided mimo systems against eavesdropping"
    - "secrecy sum rate maximization in non orthogonal multiple access"
    - "enhancing the physical layer security of non orthogonal multiple access in large scale networks"
    - "harvest then cooperate wireless powered cooperative communications"
    - "on the performance of non orthogonal multiple access in 5g systems with randomly deployed users"
    - "robust beamforming for security in mimo wiretap channels with imperfect csi"

Connected through hyperedge HE-3 (induced by source paper "secrecy performance analysis of uav transmissions subject to eavesdropping and jamming"):
  with members:
    - "a tutorial on uavs for wireless networks applications challenges and open problems"
    - "robust trajectory and transmit power design for secure uav communications"
    - "secure routing in multihop wireless ad hoc networks with decode and forward relaying"
    - "unmanned aerial vehicle with underlaid device to device communications performance and tradeoffs"

Connected through hyperedge HE-4 (induced by source paper "the stochastic geometry analyses of cellular networks with alpha stable self similarity"):
  with members:
    - "system level modeling and optimization of the energy efficiency in cellular networks a stochastic geometry framework"
    - "delivery secrecy tradeoff for cache enabled stochastic networks content placement optimization"
    - "self interference in full duplex multi user mimo channels"
    - "modeling and analysis of cellular networks using stochastic geometry a tutorial"
    - "analytical modeling of interference aware power control for the uplink of heterogeneous cellular networks"
    - "analysis of massive mimo enabled downlink wireless backhauling for full duplex small cells"
    - "the learning and prediction of application level traffic data in cellular networks"
    - "opportunistic jamming for enhancing security stochastic geometry modeling and analysis"

Connected through hyperedge HE-5 (induced by source paper "coexistence of rf powered iot and a primary wireless network with secrecy guard zones"):
  with members:
    - "power allocation for secure swipt systems with wireless powered cooperative jamming"
    - "modeling and analysis of cellular networks using stochastic geometry a tutorial"
    - "tight lower bounds on the contact distance distribution in poisson hole process"
    - "stochastic geometry based comparison of secrecy enhancement techniques in d2d networks"
    - "a primer on cellular network analysis using stochastic geometry"
    - "spatio temporal interference correlation and joint coverage in cellular networks"
    - "mimo wiretap channel under receiver side power constraints with applications to wireless power transfer and cognitive radio"
    - "secrecy wireless information and power transfer in fading wiretap channel"

Connected through hyperedge HE-6 (induced by source paper "securing visible light communication systems by beamforming in the presence of randomly distributed eavesdroppers"):
  with members:
    - "what will 5g be"
    - "on the throughput cost of physical layer security in decentralized wireless networks"
    - "on the capacity of free space optical intensity channels"
    - "the secrecy graph and some of its properties"

Connected through hyperedge HE-7 (induced by source paper "outage performance of two hop ofdm systems with spatially random decode and forward relays"):
  with members:
    - "flow level qoe of video streaming in wireless networks"
    - "modeling heterogeneous network interference using poisson point processes"

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)