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: "multistatic scatter radio sensor networks for extended coverage"
  Abstract: Scatter radio, i.e., communication by means of reflection, has been recently proposed as a viable ultra-low power solution for wireless sensor networks (WSNs). This work offers a detailed comparison between monostatic and multistatic scatter radio architectures. In monostatic architecture, the reader consists of both the illuminating transmitter and the receiver of signals scattered back from the sensors. The multistatic architecture includes several ultra-low cost illuminating carrier emitters and a single reader. Maximum-likelihood coherent and noncoherent bit error rate (BER), diversity order, average information and energy outage probability comparison is performed, under dyadic Nakagami fading, filling a gap in the literature. It is found that: (i) diversity order, BER, and tag location-independent performance bounds of multistatic architecture outperform monostatic, (ii) energy outage due to radio frequency (RF) harvesting for passive tags, is less frequent in multistatic than monostatic architecture, and (iii) multistatic coverage is higher than monostatic. Furthermore, a proof-of-concept {digital} multistatic, scatter radio WSN with a single receiver, four low-cost emitters and multiple ambiently-powered, low-bitrate tags, perhaps the first of its kind, is experimentally demonstrated (at $13$ dBm transmission power), covering an area of $3500$ m$^2$. Research findings are applicable in the industries of WSNs, radio frequency identification (RFID), and emerging Internet-of-Things.

Connected through hyperedge HE-1 (induced by source paper "backscatter data collection with unmanned ground vehicle mobility management and power allocation"):
  with members:
    - "energy constrained uav trajectory design for ground node localization"
    - "resource allocation for solar powered uav communication systems"
    - "aerial anchors positioning for reliable rss based outdoor localization in urban environments"
    - "wirelessly powered backscatter communications waveform design and snr energy tradeoff"
    - "joint trajectory and communication design for multi uav enabled wireless networks"
    - "inference from randomized transmissions by many backscatter sensors"
    - "full duplex backscatter interference networks based on time hopping spread spectrum"

Connected through hyperedge HE-2 (induced by source paper "joint communication and motion energy minimization in ugv backscatter communication"):
  with members:
    - "joint trajectory and communication design for multi uav enabled wireless networks"
    - "inference from randomized transmissions by many backscatter sensors"
    - "multipair two way relay network with harvest then transmit users resolving pairwise uplink downlink coupling"
    - "on the efficiency of far field wireless power transfer"
    - "internet of things iot a vision architectural elements and future directions"

Connected through hyperedge HE-3 (induced by source paper "multi hop backscatter tag to tag networks"):
  with members:
    - "lora backscatter enabling the vision of ubiquitous connectivity"
    - "on the synchronization of intermittently powered wireless embedded systems"

Connected through hyperedge HE-4 (induced by source paper "inference based resource allocation for multi cell backscatter sensor networks"):
  with members:
    - "belief propagation for weighted b matchings on arbitrary graphs and its relation to linear programs with integer solutions"

Connected through hyperedge HE-5 (induced by source paper "backscatter communications for the internet of things a stochastic geometry approach"):
  with members:
    - "backscatter communications for internet of things theory and applications"
    - "joint uplink and downlink coverage analysis of cellular based rf powered iot network"
    - "backscatter communications for wireless powered sensor networks with collision resolution"
    - "modeling and analysis of cellular networks using stochastic geometry a tutorial"
    - "downlink and uplink decoupling in two tier heterogeneous networks with multi antenna base stations"
    - "modulation in the air backscatter communication over ambient ofdm carrier"
    - "waveform design for wireless power transfer"
    - "the internet of things new interoperability management and security challenges"

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)