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: "noma assisted wireless caching strategies and performance analysis"
  Abstract: This paper investigates the coexistence of two important enabling techniques for future wireless networks, non-orthogonal multiple-access (NOMA) and wireless caching, and we show that the use of NOMA ensures that the two caching phases, content pushing and content delivery, can be more effectively carried out, compared to the conventional orthogonal multiple-access (OMA) based case. Two NOMA caching strategies are developed, namely the push-then-delivery strategy and the push-and-delivery strategy. In the push-then-delivery strategy, the NOMA principle is applied in the content pushing and content delivery phases, respectively. The presented analytical framework demonstrates that the push-then-delivery strategy not only significantly improves the cache hit probability, but also considerably reduces the delivery outage probability, compared to the OMA strategy. The push-and-delivery strategy is motivated by the fact that some users' requests cannot be accommodated locally and the base station has to serve them directly.The key idea of the push-and-delivery strategy is to merge the content pushing and delivery phases, i.e., the base station pushes new content to local servers while simultaneously serving the users. We show that this strategy can be straightforwardly extended to device-to-device caching, and corresponding analytical results are developed to illustrate the superiority of this caching strategy.

Connected through hyperedge HE-1 (induced by source paper "outage behaviors of noma based satellite network over shadowed rician fading channels"):
  with members:
    - "exploiting full half duplex user relaying in noma systems"
    - "a unified framework for non orthogonal multiple access"
    - "enhancing the physical layer security of non orthogonal multiple access in large scale networks"
    - "on the performance of non orthogonal multiple access in 5g systems with randomly deployed users"
    - "generic optimization of linear precoding in multibeam satellite systems"

Connected through hyperedge HE-2 (induced by source paper "non orthogonal multiple access noma how it meets 5g and beyond"):
  with members:
    - "securing downlink massive mimo noma networks with artificial noise"
    - "energy efficient joint user rb association and power allocation for uplink hybrid noma oma"
    - "capacity and outage analysis of a dual hop decode and forward relay aided noma scheme"
    - "energy efficient power allocation in uplink mmwave massive mimo with noma"
    - "optimal joint subcarrier and power allocation in noma is strongly np hard"
    - "power domain non orthogonal multiple access noma in 5g systems potentials and challenges"
    - "non orthogonal multiple access in large scale heterogeneous networks"
    - "a two phase power allocation scheme for crns employing noma"

Connected through hyperedge HE-3 (induced by source paper "secure communications in a unified non orthogonal multiple access framework"):
  with members:
    - "exploiting full half duplex user relaying in noma systems"
    - "user association and resource allocation in unified noma enabled heterogeneous ultra dense networks"
    - "securing downlink non orthogonal multiple access systems by trusted relays"
    - "a unified framework for non orthogonal multiple access"
    - "edge computing aware noma for 5g networks"
    - "impact of non orthogonal multiple access on the offloading of mobile edge computing"
    - "secure communications in noma system subcarrier assignment and power allocation"
    - "performance analysis of noma with fixed gain relaying over nakagami m fading channels"

Connected through hyperedge HE-4 (induced by source paper "cooperative multi bitrate video caching and transcoding in multicarrier noma assisted heterogeneous virtualized mec networks"):
  with members:
    - "latency optimization for resource allocation in mobile edge computation offloading"
    - "fairness and transmission aware caching and delivery policies in ofdma based hetnets"
    - "dynamic computation offloading for mobile edge computing with energy harvesting devices"
    - "optimal joint power and subcarrier allocation for mc noma systems"
    - "energy efficient resource allocation for mobile edge computation offloading"
    - "collaborative mobile edge computing in 5g networks new paradigms scenarios and challenges"
    - "optimal joint power and subcarrier allocation for full duplex multicarrier non orthogonal multiple access systems"
    - "cooperative caching and transmission design in cluster centric small cell networks"

Connected through hyperedge HE-5 (induced by source paper "power allocation in cache aided noma systems optimization and deep reinforcement learning approaches"):
  with members:
    - "resource allocation in noma based fog radio access networks"
    - "non orthogonal multiple access common myths and critical questions"
    - "joint power allocation and beamforming for non orthogonal multiple access noma in 5g millimeter wave communications"
    - "on optimal power allocation for downlink non orthogonal multiple access systems"
    - "a survey of downlink non orthogonal multiple access for 5g wireless communication networks"
    - "non orthogonal multiple access in multi cell networks theory performance and practical challenges"
    - "adam a method for stochastic optimization"
    - "fundamental limits of caching in wireless d2d networks"

Connected through hyperedge HE-6 (induced by source paper "when full duplex wireless meets non orthogonal multiple access opportunities and challenges"):
  with members:
    - "survey on multi access edge computing for internet of things realization"
    - "robust and secure resource allocation for full duplex miso multicarrier noma systems"
    - "a survey on non orthogonal multiple access for 5g networks research challenges and future trends"
    - "optimal joint power and subcarrier allocation for full duplex multicarrier non orthogonal multiple access systems"
    - "mapel achieving global optimality for a non convex wireless power control problem"

Connected through hyperedge HE-7 (induced by source paper "on the performance of network noma in uplink comp systems a stochastic geometry approach"):
  with members:
    - "impact of non orthogonal multiple access on the offloading of mobile edge computing"
    - "poisson cox point processes for vehicular networks"
    - "an analytical framework for coverage in cellular networks leveraging vehicles"
    - "power domain non orthogonal multiple access noma in 5g systems potentials and challenges"
    - "resource allocation for downlink noma systems key techniques and open issues"
    - "a survey on non orthogonal multiple access for 5g networks research challenges and future trends"
    - "optimal power allocation scheme for non orthogonal multiple access with alpha fairness"
    - "coverage analysis of a vehicular network modeled as cox process driven by poisson line process"

Connected through hyperedge HE-8 (induced by source paper "cache aided non orthogonal multiple access"):
  with members:
    - "caching meets millimeter wave communications for enhanced mobility management in 5g networks"
    - "cache enabled physical layer security for video streaming in backhaul limited cellular networks"
    - "a survey on non orthogonal multiple access for 5g networks research challenges and future trends"
    - "secure video streaming in heterogeneous small cell networks with untrusted cache helpers"
    - "speeding up future video distribution via channel aware caching aided coded multicast"
    - "wireless coded caching a topological perspective"
    - "optimal joint power and subcarrier allocation for full duplex multicarrier non orthogonal multiple access systems"
    - "a minorization maximization method for optimizing sum rate in the downlink of non orthogonal multiple access 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.IT(Information Theory)