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: "performance limits and geometric properties of array localization"
  Abstract: Location-aware networks are of great importance and interest in both civil and military applications. This paper determines the localization accuracy of an agent, which is equipped with an antenna array and localizes itself using wireless measurements with anchor nodes, in a far-field environment. In view of the Cramer–Rao bound, we first derive the localization information for static scenarios and demonstrate that such information is a weighed sum of Fisher information matrices from each anchor-antenna measurement pair. Each matrix can be further decomposed into two parts: 1) a distance part with intensity proportional to the squared baseband effective bandwidth of the transmitted signal and 2) a direction part with intensity associated with the normalized anchor-antenna visual angle. Moreover, in dynamic scenarios, we show that the Doppler shift contributes additional direction information, with intensity determined by the agent velocity and the root mean squared time duration of the transmitted signal. In addition, two measures are proposed to evaluate the localization performance of wireless networks with different anchor-agent and array-antenna geometries, and both formulae and simulations are provided for typical anchor deployments and antenna arrays.

Connected through hyperedge HE-1 (induced by source paper "5g downlink multi beam signal design for los positioning"):
  with members:
    - "optimal precoders for tracking the aod and aoa of a mmwave path"
    - "performance limits of single anchor mm wave positioning"
    - "error bounds for uplink and downlink 3d localization in 5g mmwave systems"
    - "transmitter beam selection in millimeter wave mimo with in band position aiding"

Connected through hyperedge HE-2 (induced by source paper "cooperative network synchronization asymptotic analysis"):
  with members:
    - "on the outage probability of localization in randomly deployed wireless networks"
    - "a scalable algorithm for tracking an unknown number of targets using multiple sensors"
    - "modeling and analysis of cellular networks using stochastic geometry a tutorial"
    - "cooperative simultaneous localization and synchronization in mobile agent networks"
    - "cooperative joint localization and clock synchronization based on gaussian message passing in asynchronous wireless networks"
    - "distributed clock skew and offset estimation in wireless sensor networks asynchronous algorithm and convergence analysis"
    - "on stochastic geometry modeling of cellular uplink transmission with truncated channel inversion power control"
    - "power optimization for network localization"

Connected through hyperedge HE-3 (induced by source paper "single anchor localization and orientation performance limits using massive arrays mimo vs beamforming"):
  with members:
    - "direct localization for massive mimo"
    - "error bounds for uplink and downlink 3d localization in 5g mmwave systems"
    - "map aware models for indoor wireless localization systems an experimental study"
    - "channel estimation and hybrid precoding for millimeter wave cellular systems"
    - "massive mimo for next generation wireless systems"
    - "emerging technologies and research challenges for 5g wireless networks"
    - "scaling up mimo opportunities and challenges with very large arrays"
    - "fundamental limits of wideband localization part i a general framework"

Connected through hyperedge HE-4 (induced by source paper "harnessing nlos components for position and orientation estimation in 5g mmwave mimo"):
  with members:
    - "single anchor localization and orientation performance limits using massive arrays mimo vs beamforming"
    - "position and orientation estimation through millimeter wave mimo in 5g systems"
    - "an overview of signal processing techniques for millimeter wave mimo systems"
    - "low power analog to digital conversion in millimeter wave systems impact of resolution and bandwidth on performance"
    - "coverage and rate analysis for millimeter wave cellular networks"
    - "what will 5g be"
    - "millimeter wave cellular wireless networks potentials and challenges"
    - "fundamental limits of wideband localization part ii cooperative networks"

Connected through hyperedge HE-5 (induced by source paper "error bounds for uplink and downlink 3d localization in 5g mmwave systems"):
  with members:
    - "an overview of signal processing techniques for millimeter wave mimo systems"
    - "mitigating pilot contamination through location aware pilot assignment in massive mimo networks"
    - "spatial wireless channel prediction under location uncertainty"
    - "low power analog to digital conversion in millimeter wave systems impact of resolution and bandwidth on performance"
    - "evaluation of position related information in multipath components for indoor positioning"
    - "what will 5g be"
    - "millimeter wave channel modeling and cellular capacity evaluation"
    - "fundamental limits of wideband localization part ii cooperative 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)