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: "network coded multiple access"
  Abstract: This paper proposes and experimentally demonstrates a first wireless local area network (WLAN) system that jointly exploits physical-layer network coding (PNC) and multiuser decoding (MUD) to boost system throughput. We refer to this multiple access mode as Network-Coded Multiple Access (NCMA). Prior studies on PNC mostly focused on relay networks. NCMA is the first realized multiple access scheme that establishes the usefulness of PNC in a non-relay setting. NCMA allows multiple nodes to transmit simultaneously to the access point (AP) to boost throughput. In the non-relay setting, when two nodes A and B transmit to the AP simultaneously, the AP aims to obtain both packet A and packet B rather than their network-coded packet. An interesting question is whether network coding, specifically PNC which extracts packet (A XOR B), can still be useful in such a setting. We provide an affirmative answer to this question with a novel two-layer decoding approach amenable to real-time implementation. Our USRP prototype indicates that NCMA can boost throughput by 100% in the medium-high SNR regime (>=10dB). We believe further throughput enhancement is possible by allowing more than two users to transmit together.

Connected through hyperedge HE-1 (induced by source paper "random access for massive machine type communications"):
  with members:
    - "beamwidth control for noma in hybrid mmwave communication systems"
    - "design of non orthogonal beamspace multiple access for cellular internet of things"
    - "on the performance gain of noma over oma in uplink single cell systems"
    - "multi beam noma for hybrid mmwave systems"
    - "joint pilot and payload power control for uplink mimo noma with mrc sic receivers"
    - "reliability based windowed decoding for spatially coupled ldpc codes"
    - "short packet downlink transmission with non orthogonal multiple access"
    - "a multi beam noma framework for hybrid mmwave systems"

Connected through hyperedge HE-2 (induced by source paper "compute and forward relaying with ldpc codes over qpsk scheme"):
  with members:
    - "asymptotic analysis on spatial coupling coding for two way relay channels"
    - "physical layer network coding a random coding error exponent perspective"
    - "expanding the compute and forward framework unequal powers signal levels and multiple linear combinations"
    - "universal codes for the gaussian mac via spatial coupling"
    - "compute and forward harnessing interference through structured codes"
    - "joint physical layer coding and network coding for bi directional relaying"

Connected through hyperedge HE-3 (induced by source paper "implementation of uplink network coded modulation for two hop networks"):
  with members:
    - "complex linear physical layer network coding"
    - "asynchronous convolutional coded physical layer network coding"
    - "wireless network coding via modified 802 11 mac phy design and implementation on sdr"
    - "asynchronous physical layer network coding"
    - "implementation of physical layer network coding"
    - "physical layer network coding"

Connected through hyperedge HE-4 (induced by source paper "multirate packet delivery in heterogeneous broadcast networks"):
  with members:
    - "dynamic rate adaptation for improved throughput and delay in wireless network coded broadcast"
    - "completion delay minimization for instantly decodable network codes"
    - "throughput delay analysis of random linear network coding for wireless broadcasting"
    - "effective delay control in online network coding"
    - "arq for network coding"
    - "online network coding for optimal throughput and delay the three receiver case"
    - "intermediate performance of rateless codes"

Connected through hyperedge HE-5 (induced by source paper "practical power balanced non orthogonal multiple access"):
  with members:
    - "power domain non orthogonal multiple access noma in 5g systems potentials and challenges"
    - "dynamic user clustering and power allocation for uplink and downlink non orthogonal multiple access noma systems"
    - "network coded multiple access with high order modulations"
    - "coded random access applying codes on graphs to design random access protocols"
    - "random access with physical layer network coding"
    - "reliable physical layer network coding"

Connected through hyperedge HE-6 (induced by source paper "mobile lattice coded physical layer network coding with practical channel alignment"):
  with members:
    - "reliable physical layer network coding supporting real applications"
    - "phase precoded compute and forward with partial feedback"
    - "asynchronous convolutional coded physical layer network coding"
    - "multilevel coding schemes for compute and forward with flexible decoding"
    - "scalable synchronization and reciprocity calibration for distributed multiuser mimo"
    - "airsync enabling distributed multiuser mimo with full spatial multiplexing"
    - "the degrees of freedom of compute and forward"
    - "physical layer network coding tutorial survey and beyond"

Connected through hyperedge HE-7 (induced by source paper "reliable physical layer network coding supporting real applications"):
  with members:
    - "on the subtleties of q pam linear physical layer network coding"
    - "arq for physical layer network coding"
    - "building blocks of physical layer network coding"
    - "distributed mac protocol supporting physical layer network coding"
    - "reliable physical layer network coding"
    - "physical layer network coding tutorial survey and beyond"
    - "implementation of physical layer network coding"

Connected through hyperedge HE-8 (induced by source paper "multiuser rate diverse network coded multiple access"):
  with members:
    - "network coded multiple access with high order modulations"
    - "coded random access applying codes on graphs to design random access protocols"
    - "random access with physical layer network coding"
    - "reliable physical layer network coding"

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)