human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "network level performance evaluation of a two relay cooperative random access wireless system"):
  Abstract: In wireless networks relay nodes can be used to assist the users' transmissions to reach their destination. Work on relay cooperation, from a physical layer perspective, has up to now yielded well-known results. This paper takes a different stance focusing on network-level cooperation. Extending previous results for a single relay, we investigate here the benefits from the deployment of a second one. We assume that the two relays do not generate packets of their own and the system employs random access to the medium; we further consider slotted time and that the users have saturated queues. We obtain analytical expressions for the arrival and service rates of the queues of the two relays and the stability conditions. We investigate a model of the system, in which the users are divided into clusters, each being served by one relay, and show its advantages in terms of aggregate and throughput per user. We quantify the above, analytically for the case of the collision channel and through simulations for the case of Multi-Packet Reception (MPR), and we provide insight on when the deployment of a second relay in the system can yield significant advantages.

Includes members:
  Member "polynomial complexity minimum time scheduling in a class of wireless networks":
    also connected through other hyperedges:
      (none)
  Member "relay assisted multiple access with full duplex multi packet reception":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "wireless caching helper system with heterogeneous traffic and random availability")
  Member "stability and performance issues of a relay assisted multiple access scheme with mpr capabilities":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "wireless network level partial relay cooperation a stable throughput analysis")
  Member "on the stability region of a relay assisted multiple access scheme":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "on buffer aided multiple access relay channel")
  Member "network level cooperation in energy harvesting wireless networks":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "performance analysis of a cooperative wireless network with adaptive relays")
  Member "relay assisted multiple access with multi packet reception capability and simultaneous transmission and reception":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "on the benefits of network level cooperation in millimeter wave communications")

Question: Please tell me which class the source paper 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)