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: "delay and communication tradeoffs for blockchain systems with lightweight iot clients"
  Abstract: The emerging blockchain protocols provide a decentralized architecture that is suitable of supporting Internet of Things (IoT) interactions. However, keeping a local copy of the blockchain ledger is infeasible for low-power and memory-constrained devices. For this reason, they are equipped with lightweight software implementations that only download the useful data structures, e.g. state of accounts, from the blockchain network, when they are updated. In this paper, we consider and analyze a novel scheme, implemented by the nodes of the blockchain network, which aggregates the blockchain data in periodic updates and further reduces the communication cost of the connected IoT devices. We show that the aggregation period should be selected based on the channel quality, the offered rate, and the statistics of updates of the useful data structures. The results, obtained for the Ethereum protocol, illustrate the benefits of the aggregation scheme in terms of a reduced duty cycle of the device, particularly for low signal-to-noise ratios, and the overall reduction of the amount of information transmitted in downlink (e.g., from the wireless base station to the IoT device). A potential application of the proposed scheme is to let the IoT device request more information than actually needed, hence increasing its privacy, while keeping the communication cost constant. In conclusion, our work is the first to provide rigorous guidelines for the design of lightweight blockchain protocols with wireless connectivity.

Connected through hyperedge HE-1 (induced by source paper "computation offloading in the untrusted mec aided mobile blockchain iot system"):
  with members:
    - "when internet of things meets blockchain challenges in distributed consensus"
    - "blockchain for internet of things a survey"
    - "auction mechanisms in cloud fog computing resource allocation for public blockchain networks"
    - "cloud fog computing resource management and pricing for blockchain networks"
    - "analysis of the communication traffic for blockchain synchronization of iot devices"
    - "when mobile blockchain meets edge computing"
    - "a survey on mobile edge computing the communication perspective"
    - "social welfare maximization auction in edge computing resource allocation for mobile blockchain"

Connected through hyperedge HE-2 (induced by source paper "communication aspects of the integration of wireless iot devices with distributed ledger technology"):
  with members:
    - "analysis of lorawan uplink with multiple demodulating paths and capture effect"
    - "hyperledger fabric a distributed operating system for permissioned blockchains"
    - "bitcoin payment channels for resource limited iot devices"
    - "analysis of the communication traffic for blockchain synchronization of iot devices"
    - "distributed proportional fairness control in microgrids via blockchain smart contracts"
    - "massive machine type communications in 5g physical and mac layer solutions"

Connected through hyperedge HE-3 (induced by source paper "communication and consensus co design for low latency and reliable industrial iot systems"):
  with members:
    - "performance analysis of blockchain systems with wireless mobile miners"
    - "mobile edge computing blockchain and reputation based crowdsourcing iot federated learning a secure decentralized and privacy preserving system"
    - "hyperledger fabric a distributed operating system for permissioned blockchains"
    - "consensus before talk distributed dynamic spectrum access via distributed spectrum ledger technology"
    - "blockchained on device federated learning"

Connected through hyperedge HE-4 (induced by source paper "practical modeling and analysis of blockchain radio access network"):
  with members:
    - "a survey on consensus mechanisms and mining strategy management in blockchain networks"
    - "cloud fog computing resource management and pricing for blockchain networks"
    - "smart contract slas for dense small cell as a service"
    - "analysis of hashrate based double spending"

Connected through hyperedge HE-5 (induced by source paper "repeat authenticate scheme for multicasting of blockchain information in iot systems"):
  with members:
    - "communication aspects of the integration of wireless iot devices with distributed ledger technology"
    - "analysis of the communication traffic for blockchain synchronization of iot devices"

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.DC(Distributed, Parallel, and Cluster Computing)