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: "coalitions in cooperative wireless networks"
  Abstract: Cooperation between rational users in wireless networks is studied using coalitional game theory. Using the rate achieved by a user as its utility, it is shown that the stable coalition structure, i.e., set of coalitions from which users have no incentives to defect, depends on the manner in which the rate gains are apportioned among the cooperating users. Specifically, the stability of the grand coalition (GC), i.e., the coalition of all users, is studied. Transmitter and receiver cooperation in an interference channel (IC) are studied as illustrative cooperative models to determine the stable coalitions for both flexible (transferable) and fixed (non-transferable) apportioning schemes. It is shown that the stable sum-rate optimal coalition when only receivers cooperate by jointly decoding (transferable) is the GC. The stability of the GC depends on the detector when receivers cooperate using linear multiuser detectors (non-transferable). Transmitter cooperation is studied assuming that all receivers cooperate perfectly and that users outside a coalition act as jammers. The stability of the GC is studied for both the case of perfectly cooperating transmitters (transferrable) and under a partial decode-and-forward strategy (non-transferable). In both cases, the stability is shown to depend on the channel gains and the transmitter jamming strengths.

Connected through hyperedge HE-1 (induced by source paper "a mood value for fair resource allocations"):
  with members:
    - "an axiomatic theory of fairness in network resource allocation"
    - "coalitional games for distributed collaborative spectrum sensing in cognitive radio networks"
    - "a quantitative measure of fairness and discrimination for resource allocation in shared computer systems"

Connected through hyperedge HE-2 (induced by source paper "game theory for signal processing in networks"):
  with members:
    - "understanding game theory via wireless power control"
    - "crawford sobel meet lloyd max on the grid"
    - "coalitional games in miso interference channels epsilon core and coalition structure stable set"
    - "multiobjective signal processing optimization the way to balance conflicting metrics in 5g systems"
    - "distributed cooperative sensing in cognitive radio networks an overlapping coalition formation approach"
    - "distributed adaptive networks a graphical evolutionary game theoretic view"
    - "jamming games in the mimo wiretap channel with an active eavesdropper"
    - "distributed learning policies for power allocation in multiple access channels"

Connected through hyperedge HE-3 (induced by source paper "towards cooperation by carrier aggregation in heterogeneous networks a hierarchical game approach"):
  with members:
    - "coalitional games with overlapping coalitions for interference management in small cell networks"
    - "price based resource allocation for spectrum sharing femtocell networks a stackelberg game approach"
    - "power control in two tier femtocell networks"

Connected through hyperedge HE-4 (induced by source paper "coalitional games for transmitter cooperation in mimo multiple access channels"):
  with members:
    - "distributed learning policies for power allocation in multiple access channels"
    - "the capacity of mimo channels with per antenna power constraint"
    - "power allocation games in wireless networks of multi antenna terminals"
    - "dynamic power allocation games in parallel multiple access channels"
    - "methodologies for analyzing equilibria in wireless games"
    - "cores of cooperative games in information theory"

Connected through hyperedge HE-5 (induced by source paper "coalitional game theoretic approach for cooperative transmission in vehicular networks"):
  with members:
    - "opportunistic df af selection relaying with optimal relay selection in nakagami m fading environments"
    - "coalition formation games for distributed cooperation among roadside units in vehicular networks"
    - "coalitional game theory for communication networks a tutorial"
    - "coalition games with cooperative transmission a cure for the curse of boundary nodes in selfish packet forwarding wireless networks"
    - "a simple cooperative diversity method based on network path selection"

Connected through hyperedge HE-6 (induced by source paper "competition vs cooperation a game theoretic decision analysis for mimo hetnets"):
  with members:
    - "spectrum leasing as an incentive towards uplink macrocell and femtocell cooperation"
    - "price based resource allocation for spectrum sharing femtocell networks a stackelberg game approach"
    - "adaptive spatial intercell interference cancellation in multicell wireless networks"

Connected through hyperedge HE-7 (induced by source paper "coalitional games in partition form for joint spectrum sensing and access in cognitive radio networks"):
  with members:
    - "coalition formation games for collaborative spectrum sensing"
    - "from spectrum pooling to space pooling opportunistic interference alignment in mimo cognitive networks"
    - "coalitional game theory for communication networks a tutorial"
    - "coalitional games for distributed collaborative spectrum sensing in cognitive radio networks"
    - "a generic approach to coalition formation"

Connected through hyperedge HE-8 (induced by source paper "a game theoretic view of the interference channel impact of coordination and bargaining"):
  with members:
    - "alternating offer bargaining games over the gaussian interference channel"
    - "capacity regions and sum rate capacities of vector gaussian interference channels"
    - "coordination and bargaining over the gaussian interference channel"
    - "a new outer bound and the noisy interference sum rate capacity for gaussian interference channels"
    - "capacity bounds for the gaussian interference channel"
    - "gaussian interference channel capacity to within one bit"
    - "cooperative game theory and the gaussian interference channel"
    - "bargaining over the interference channel"

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.GT(Computer Science and Game Theory)