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: "fairness and transmission aware caching and delivery policies in ofdma based hetnets"
  Abstract: Recently, cache-enabled heterogeneous cellular networks (C-HetNets) have been emerged as a promising solution for next-generation wireless networks to cope with exponentially increasing demands for high data rate and low latency multimedia services. In this paper, we design both the caching and the delivery policies in the downlink of an orthogonal frequency division multiple access (OFDMA)-based C-HetNet which operates in two phases: caching phase and delivery phase. In the caching phase, we propose novel transmission-aware caching policies by coupling the cache placement strategy and physical-layer transmission to exploit the benefits of flexible physical transmission opportunities for access and backhaul links, simultaneously. We specifically apply a joint optimization of cache placement and ergodic radio resource allocation for both the access and backhaul links to extend the flexibility of the cache placement strategies and cover each time period of the delivery phase. Since most of the current research efforts in cache-assisted wireless networks neglected the fair treatment of mobile users (MUs), in this work, we propose two schemes called proportional fairness and min-max fairness schemes. In the proportional fairness scheme, we minimize the total weighted latency of MUs while in the min-max fairness scheme, we minimize the maximal latency of MUs in each cell. In numerical assessments, we investigate the effect of the proposed fairness and transmission-aware caching policies compared to the conventional proactive caching strategies which are only based on the contents popularity and storage capacities.

Connected through hyperedge HE-1 (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"
    - "noma assisted wireless caching strategies and performance analysis"
    - "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-2 (induced by source paper "e2e delay guarantee for the tactile internet via joint nfv and radio resource allocation"):
  with members:
    - "cloud based queuing model for tactile internet in next generation of ran"
    - "resource management and admission control for tactile internet in next generation of ran"
    - "flexible mec service consumption through edge host zoning in 5g networks"
    - "5g wireless network slicing for embb urllc and mmtc a communication theoretic view"
    - "ultra reliable and low latency communications in 5g downlink physical layer aspects"
    - "uplink transmission design with massive machine type devices in tactile internet"
    - "energy efficient design for tactile internet"
    - "network function virtualization state of the art and research challenges"

Connected through hyperedge HE-3 (induced by source paper "single or multiple frames content delivery for robust and secure communication in energy and spectrum efficient 5g networks"):
  with members:
    - "cost effective cache deployment in mobile heterogeneous networks"
    - "a new look at physical layer security caching and wireless energy harvesting for heterogeneous ultra dense networks"
    - "limited feedback scheme for device to device communications in 5g cellular networks with reliability and cellular secrecy outage constraints"
    - "joint backhaul access analysis of full duplex self backhauling heterogeneous networks"
    - "green ofdma resource allocation in cache enabled cran"
    - "joint hybrid backhaul and access links design in cloud radio access networks"
    - "exploiting device to device communications in joint scheduling of access and backhaul for mmwave small cells"
    - "uplink contention based scma for 5g radio access"

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)