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: "how much cache is needed to achieve linear capacity scaling in backhaul limited dense wireless networks"
  Abstract: Dense wireless networks are a promising solution to meet the huge capacity demand in 5G wireless systems. However, there are two implementation issues, namely, the interference and backhaul issues. To resolve these issues, we propose a novel network architecture called the backhaul-limited cached dense wireless network (C-DWN), where a physical layer (PHY) caching scheme is employed at the base stations (BSs), but only a fraction of the BSs have wired payload backhauls. The PHY caching can replace the role of wired backhauls to achieve both the cache-induced multiple-input–multiple-output (MIMO) cooperation gain and cache-assisted multihopping gain. Two fundamental questions are addressed. Can we exploit the PHY caching to achieve linear capacity scaling with limited payload backhauls? If so, how much cache is needed? We show that the capacity of the backhaul-limited C-DWN indeed scales linearly with the number of BSs if the BS cache size is larger than a threshold that depends on the content popularity. We also quantify the throughput gain due to cache-induced MIMO cooperation over conventional caching schemes (which exploit purely the cached-assisted multihopping). Interestingly, the minimum BS cache size needed to achieve a significant cache-induced MIMO cooperation gain is the same as that needed to achieve the linear capacity scaling.

Connected through hyperedge HE-1 (induced by source paper "edge caching in dense heterogeneous cellular networks with massive mimo aided self backhaul"):
  with members:
    - "random caching based cooperative transmission in heterogeneous wireless networks"
    - "fog radio access networks mobility management interference mitigation and resource optimization"
    - "a new look at physical layer security caching and wireless energy harvesting for heterogeneous ultra dense networks"
    - "stochastic content centric multicast scheduling for cache enabled heterogeneous cellular networks"
    - "cache size allocation in backhaul limited wireless networks"
    - "wireless device to device caching networks basic principles and system performance"
    - "wireless caching technical misconceptions and business barriers"
    - "user association in 5g networks a survey and an outlook"

Connected through hyperedge HE-2 (induced by source paper "mobile edge caching an optimal auction approach"):
  with members:
    - "fundamental tradeoff between storage and latency in cache aided wireless interference networks"
    - "pricing and resource allocation via game theory for a small cell video caching system"
    - "information theoretic caching the multi user case"
    - "caching at the wireless edge design aspects challenges and future directions"
    - "joint caching and pricing strategies for popular content in information centric networks"
    - "wireless content caching for small cell and d2d networks"
    - "a rate distortion approach to caching"
    - "adaptive caching networks with optimality guarantees"

Connected through hyperedge HE-3 (induced by source paper "traffic minimizing caching and latent variable distributions of order statistics"):
  with members:
    - "a learning based approach to caching in heterogenous small cell networks"
    - "caching in wireless small cell networks a storage bandwidth tradeoff"
    - "wireless content caching for small cell and d2d networks"
    - "unravelling the impact of temporal and geographical locality in content caching systems"
    - "adapting caching to audience retention rate which video chunk to store"
    - "catalog dynamics impact of content publishing and perishing on the performance of a lru cache"
    - "living on the edge the role of proactive caching in 5g wireless networks"
    - "base station assisted device to device communications for high throughput wireless video networks"

Connected through hyperedge HE-4 (induced by source paper "spatially correlated content caching for device to device communications"):
  with members:
    - "optimal geographic caching in cellular networks with linear content coding"
    - "fundamentals of modeling finite wireless networks using binomial point process"
    - "optimizing content caching to maximize the density of successful receptions in device to device networking"
    - "spatial multi lru caching for wireless networks with coverage overlaps"
    - "placing dynamic content in caches with small population"
    - "modeling and performance analysis of clustered device to device networks"
    - "optimizing the spatial content caching distribution for device to device communications"
    - "optimizing spatial throughput in device to device networks"

Connected through hyperedge HE-5 (induced by source paper "cache induced hierarchical cooperation in wireless device to device caching networks"):
  with members:
    - "the exact rate memory tradeoff for caching with uncoded prefetching"
    - "fundamental limits of cache aided interference management"
    - "caching in wireless multihop device to device networks"
    - "on fundamental trade offs of device to device communications in large wireless networks"
    - "fundamental limits of cache aided wireless bc interplay of coded caching and csit feedback"
    - "caching and coded multicasting multiple groupcast index coding"
    - "hierarchical coded caching"
    - "fundamental limits of caching in wireless d2d networks"

Connected through hyperedge HE-6 (induced by source paper "optimization and analysis of probabilistic caching in n tier heterogeneous networks"):
  with members:
    - "caching policy toward maximal success probability and area spectral efficiency of cache enabled hetnets"
    - "on optimal geographical caching in heterogeneous cellular networks"
    - "the three primary colors of mobile systems"
    - "caching in wireless small cell networks a storage bandwidth tradeoff"
    - "optimal caching placement for wireless femto caching network"
    - "analysis and optimization of caching and multicasting in large scale cache enabled heterogeneous wireless networks"
    - "caching placement in stochastic wireless caching helper networks channel selection diversity via caching"
    - "cooperative caching and transmission design in cluster centric small cell networks"

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)