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: "pushing the limits of full duplex design and real time implementation"
  Abstract: Recent work has shown the feasibility of single-channel full-duplex wireless physical layer, allowing nodes to send and receive in the same frequency band at the same time. In this report, we first design and implement a real-time 64-subcarrier 10 MHz full-duplex OFDM physical layer, FD-PHY. The proposed FD-PHY not only allows synchronous full-duplex transmissions but also selective asynchronous full-duplex modes. Further, we show that in over-the-air experiments using optimal antenna placement on actual devices, the self-interference can be suppressed upto 80dB, which is 10dB more than prior reported results. Then we propose a full-duplex MAC protocol, FD-MAC, which builds on IEEE 802.11 with three new mechanisms -- shared random backoff, header snooping and virtual backoffs. The new mechanisms allow FD-MAC to discover and exploit full-duplex opportunities in a distributed manner. Our over-the-air tests show over 70% throughput gains from using full-duplex over half-duplex in realistically used cases.

Connected through hyperedge HE-1 (induced by source paper "hybrid scheduling in heterogeneous half and full duplex wireless networks"):
  with members:
    - "open access full duplex wireless in the orbit testbed"
    - "resource allocation and rate gains in practical full duplex systems"
    - "on the capacity regions of single channel and multi channel full duplex links"
    - "probabilistic medium access control for full duplex networks with half duplex clients"
    - "prototyping real time full duplex radios"
    - "queue based random access algorithms fluid limits and stability issues"
    - "in band full duplex wireless challenges and opportunities"
    - "experiment driven characterization of full duplex wireless systems"

Connected through hyperedge HE-2 (induced by source paper "full duplex cloud radio access network stochastic design and analysis"):
  with members:
    - "self interference in full duplex multi user mimo channels"
    - "cross layer design for downlink multihop cloud radio access networks with network coding"
    - "secrecy and energy efficiency in massive mimo aided heterogeneous c ran a new look at interference"
    - "echo state networks for proactive caching in cloud based radio access networks with mobile users"
    - "on the optimal fronthaul compression and decoding strategies for uplink cloud radio access networks"
    - "a stochastic analysis of network mimo systems"
    - "massive mimo enabled full duplex cellular networks"
    - "full duplex mimo small cell networks with interference cancellation"

Connected through hyperedge HE-3 (induced by source paper "resource allocation and rate gains in practical full duplex systems"):
  with members:
    - "passive self interference suppression for full duplex infrastructure nodes"
    - "design and characterization of a full duplex multiantenna system for wifi networks"
    - "rate gain region and design tradeoffs for full duplex wireless communications"
    - "in band full duplex wireless challenges and opportunities"
    - "distributed full duplex via wireless side channels bounds and protocols"
    - "understanding the impact of phase noise on active cancellation in wireless full duplex"
    - "experiment driven characterization of full duplex wireless systems"

Connected through hyperedge HE-4 (induced by source paper "simultaneous transmit and receive operation in next generation ieee 802 11 wlans a mac protocol design approach"):
  with members:
    - "ieee 802 11ax high efficiency wlans"
    - "design and characterization of a full duplex multiantenna system for wifi networks"
    - "in band full duplex wireless challenges and opportunities"
    - "experiment driven characterization of full duplex wireless systems"

Connected through hyperedge HE-5 (induced by source paper "directional antennas for interference management in full duplex cellular networks"):
  with members:
    - "a primer on cellular network analysis using stochastic geometry"
    - "throughput and coverage for a mixed full and half duplex small cell network"
    - "uplink performance analysis of dense cellular networks with los and nlos transmissions"
    - "passive loop interference suppression in large scale full duplex cellular networks"
    - "full duplex radio for uplink downlink transmission with spatial randomness"
    - "full duplex mimo small cell networks performance analysis"
    - "throughput analysis for full duplex wireless networks with imperfect self interference cancellation"
    - "exploiting known interference as green signal power for downlink beamforming optimization"

Connected through hyperedge HE-6 (induced by source paper "mu mimo mac protocols for wireless local area networks a survey"):
  with members:
    - "uni mumac a unified down up link mu mimo mac protocol for ieee 802 11ac wlans"
    - "leader contention based user matching for 802 11 multiuser mimo networks"
    - "proportional fair mu mimo in 802 11 wlans"
    - "massive mimo for next generation wireless systems"
    - "evolution toward 5g multi tier cellular wireless networks an interference management perspective"
    - "design and characterization of a full duplex multiantenna system for wifi networks"
    - "managing heterogeneous wsns in smart cities challenges and requirements"
    - "on the performance of packet aggregation in ieee 802 11ac mu mimo wlans"

Connected through hyperedge HE-7 (induced by source paper "probabilistic medium access control for full duplex networks with half duplex clients"):
  with members:
    - "full duplex radio for uplink downlink wireless access with spatially random nodes"
    - "multipair full duplex relaying with massive arrays and linear processing"
    - "design and characterization of a full duplex multiantenna system for wifi networks"
    - "distributed full duplex via wireless side channels bounds and protocols"
    - "full duplex bidirectional mimo achievable rates under limited dynamic range"
    - "cellular systems with full duplex compress and forward relaying and cooperative base stations"

Connected through hyperedge HE-8 (induced by source paper "rcfd a novel channel access scheme for full duplex wireless networks based on contention in time and frequency domains"):
  with members:
    - "rcfd a frequency based channel access scheme for full duplex wireless networks"
    - "design and characterization of a full duplex multiantenna system for wifi networks"
    - "in band full duplex wireless challenges and opportunities"
    - "a quantitative measure of fairness and discrimination for resource allocation in shared computer systems"

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.NI(Networking and Internet Architecture)