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: "the stability region of the two user interference channel"
  Abstract: The stable throughput region of the two-user interference channel is investigated here. First, the stability region for the general case is characterized. Second, we study the cases where the receivers treat interference as noise or perform successive interference cancelation. Finally, we provide conditions for the convexity/concavity of the stability region and for which a certain interference management strategy leads to broader stability region.

Connected through hyperedge HE-1 (induced by source paper "spatio temporal modeling for massive and sporadic access"):
  with members:
    - "tradeoff between delay and physical layer security in wireless networks"
    - "aggregation and resource scheduling in machine type communication networks a stochastic geometry approach"
    - "random access analysis for massive iot networks under a new spatio temporal model a stochastic geometry approach"
    - "spatiotemporal stochastic modeling of iot enabled cellular networks scalability and stability analysis"
    - "heterogeneous cellular networks with spatio temporal traffic delay analysis and scheduling"
    - "massive machine type communication with data aggregation and resource scheduling"
    - "massive machine type communications in 5g physical and mac layer solutions"
    - "user centric mobility management in ultra dense cellular networks under spatio temporal dynamics"

Connected through hyperedge HE-2 (induced by source paper "stable throughput region of the two user interference channel"):
  with members:
    - "stable throughput and delay analysis of a random access network with queue aware transmission"
    - "stable throughput region of the two user broadcast channel"
    - "effect of energy harvesting on stable throughput in cooperative relay systems"
    - "multi user cognitive interference channels a survey and new capacity results"
    - "achievable outage rate regions for the miso interference channel"
    - "relay assisted multiple access with multi packet reception capability and simultaneous transmission and reception"
    - "a new outer bound and the noisy interference sum rate capacity for gaussian interference channels"

Connected through hyperedge HE-3 (induced by source paper "secure communications for the two user broadcast channel with random traffic"):
  with members:
    - "wiretap channels nonasymptotic fundamental limits"
    - "exploiting full duplex receivers for achieving secret communications in multiuser miso networks"
    - "on secrecy metrics for physical layer security over quasi static fading channels"
    - "probabilistic cooperation of a full duplex relay in random access networks"
    - "finite blocklength bounds for wiretap channels"
    - "stable throughput region of the two user broadcast channel"
    - "the stability region of the two user broadcast channel"
    - "throughput analysis for full duplex wireless networks with imperfect self interference cancellation"

Connected through hyperedge HE-4 (induced by source paper "stability analysis of tdd networks revisited a trade off between complexity and precision"):
  with members:
    - "effect of energy harvesting on stable throughput in cooperative relay systems"
    - "optimal utilization of a cognitive shared channel with a rechargeable primary source node"
    - "asymptotic stability region of slotted aloha"

Connected through hyperedge HE-5 (induced by source paper "stable throughput region of the two user broadcast channel"):
  with members:
    - "the stability region of the two user broadcast channel"
    - "the two user gaussian fading broadcast channel"
    - "duality and stability regions of multi rate broadcast and multiple access networks"

Connected through hyperedge HE-6 (induced by source paper "the stability region of the two user degraded gaussian broadcast channel"):
  with members:
    - "the two user gaussian fading broadcast channel"
    - "duality and stability regions of multi rate broadcast and multiple access networks"

Connected through hyperedge HE-7 (induced by source paper "the stability region of the two user broadcast channel"):
  with members:
    - "the two user gaussian fading broadcast channel"
    - "duality and stability regions of multi rate broadcast and multiple access networks"

Connected through hyperedge HE-8 (induced by source paper "performance evaluation of flow allocation with successive interference cancelation for random access wmns"):
  with members:
    - "relay assisted multiple access with full duplex multi packet reception"
    - "stability and performance issues of a relay assisted multiple access scheme with mpr capabilities"
    - "the performance of successive interference cancellation in random wireless networks"
    - "network level performance evaluation of a two relay cooperative random access wireless system"

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)