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: "artificial noise aided secure transmission in large scale spectrum sharing networks"
  Abstract: We investigate beamforming and artificial noise generation at the secondary transmitters to establish secure transmission in large scale spectrum sharing networks,where multiple non-colluding eavesdroppers attempt to intercept the secondary transmission. We develop a comprehensive analytical framework to accurately assess the secrecy performance under the primary users' quality of service constraint. Our aim is to characterize the impact of beamforming and artificial noise generation on this complex large scale network. We first derive exact expressions for the average secrecy rate and the secrecy outage probability.We then derive an easy-to-evaluate asymptotic average secrecy rate and asymptotic secrecy outage probability when the number of antennas at the secondary transmitter goes to infinity. Our results show that the equal power allocation between the useful signal and artificial noise is not always the best strategy to achieve maximum average secrecy rate in large scale spectrum sharing networks. Another interesting observation is that the advantage of beamforming and artificial noise generation over beamforming on the average secrecy rate is lost when the aggregate interference from the primary and secondary transmitters is strong, such that it overtakes the effect of the generated artificial noise.

Connected through hyperedge HE-1 (induced by source paper "physical layer security in the finite blocklength regime over fading channels"):
  with members:
    - "secure and energy efficient transmissions in cache enabled heterogeneous cellular networks performance analysis and optimization"
    - "a survey of physical layer security techniques for 5g wireless networks and challenges ahead"
    - "safeguarding decentralized wireless networks using full duplex jamming receivers"
    - "on the spectral efficiency and security enhancements of noma assisted multicast unicast streaming"
    - "finite blocklength bounds for wiretap channels"
    - "a survey on wireless security technical challenges recent advances and future trends"
    - "enhancing the physical layer security of non orthogonal multiple access in large scale networks"
    - "finite block length analysis of the incremental redundancy harq"

Connected through hyperedge HE-2 (induced by source paper "multi antenna covert communications in random wireless networks"):
  with members:
    - "fundamental limits of covert communication over mimo awgn channel"
    - "covert wireless communication with a poisson field of interferers"
    - "covert communication in fading channels under channel uncertainty"
    - "covert wireless communication with artificial noise generation"
    - "safeguarding decentralized wireless networks using full duplex jamming receivers"
    - "covert communications with a full duplex receiver over wireless fading channels"
    - "on covert communication with noise uncertainty"
    - "fundamental limits of communication with low probability of detection"

Connected through hyperedge HE-3 (induced by source paper "secrecy outage analysis of non orthogonal spectrum sharing for heterogeneous cellular networks"):
  with members:
    - "security reliability tradeoff for distributed antenna systems in heterogeneous cellular networks"
    - "intelligent interference exploitation for heterogeneous cellular networks against eavesdropping"
    - "power domain non orthogonal multiple access noma in 5g systems potentials and challenges"
    - "a new look at physical layer security caching and wireless energy harvesting for heterogeneous ultra dense networks"
    - "physical layer security for spectrum sharing systems"
    - "location based beamforming and physical layer security in rician wiretap channels"
    - "physical layer security in millimeter wave cellular networks"
    - "a survey on wireless security technical challenges recent advances and future trends"

Connected through hyperedge HE-4 (induced by source paper "secrecy outage and diversity analysis of multiple cooperative source destination pairs"):
  with members:
    - "modulation and multiple access for 5g networks"
    - "physical layer security in heterogeneous networks with jammer selection and full duplex users"
    - "physical layer security for spectrum sharing systems"
    - "on secrecy performance of antenna selection aided mimo systems against eavesdropping"
    - "location based beamforming for enhancing secrecy in rician wiretap channels"
    - "physical layer security in heterogeneous cellular networks"
    - "secrecy transmit beamforming for heterogeneous networks"
    - "proactive eavesdropping via cognitive jamming in fading channels"

Connected through hyperedge HE-5 (induced by source paper "physical layer security in cache enabled cooperative small cell networks against randomly distributed eavesdroppers"):
  with members:
    - "cache enabled physical layer security for video streaming in backhaul limited cellular networks"
    - "safeguarding decentralized wireless networks using full duplex jamming receivers"
    - "secure video streaming in heterogeneous small cell networks with untrusted cache helpers"
    - "wireless caching technical misconceptions and business barriers"
    - "on edge caching with secrecy constraints"
    - "a survey on wireless security technical challenges recent advances and future trends"
    - "physical layer security in heterogeneous cellular networks"
    - "cooperative caching and transmission design in cluster centric small cell networks"

Connected through hyperedge HE-6 (induced by source paper "stochastic geometry modeling of cellular v2x communication over shared channels"):
  with members:
    - "success probability and area spectral efficiency of a vanet modeled as a cox process"
    - "an analytical framework for coverage in cellular networks leveraging vehicles"
    - "coverage analysis of a vehicular network modeled as cox process driven by poisson line process"
    - "asymptotic blind spot analysis of localization networks under correlated blocking using a poisson line process"
    - "a primer on cellular network analysis using stochastic geometry"
    - "physical layer security in three tier wireless sensor networks a stochastic geometry approach"
    - "d2d based v2v communications with latency and reliability constraints"
    - "on stochastic geometry modeling of cellular uplink transmission with truncated channel inversion power control"

Connected through hyperedge HE-7 (induced by source paper "covert communication achieved by a greedy relay in wireless networks"):
  with members:
    - "covert communication in wireless relay networks"
    - "fundamental limits of covert communication over mimo awgn channel"
    - "covert communication in fading channels under channel uncertainty"
    - "covert communication with finite blocklength in awgn channels"
    - "on covert communication with noise uncertainty"
    - "fundamental limits of communication with low probability of detection"
    - "artificial noise aided secure transmission with directional modulation based on random frequency diverse arrays"
    - "covert communication in the presence of an uninformed jammer"

Connected through hyperedge HE-8 (induced by source paper "random access analysis for massive iot networks under a new spatio temporal model a stochastic geometry approach"):
  with members:
    - "stochastic coalitional games for cooperative random access in m2m communications"
    - "spatiotemporal stochastic modeling of iot enabled cellular networks scalability and stability analysis"
    - "heterogeneous cellular networks with spatio temporal traffic delay analysis and scheduling"
    - "physical layer security in three tier wireless sensor networks a stochastic geometry approach"
    - "on stochastic geometry modeling of cellular uplink transmission with truncated channel inversion power control"
    - "analytical modeling of uplink cellular networks"
    - "internet of things iot a vision architectural elements and future directions"
    - "downlink capacity and base station density in cellular networks"

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)