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Two pricing games are derived for distributed rate allocation in two cooperative transmission schemes, in which source nodes are assigned orthogonal channels. In the first game, the source nodes multiplex the data streams of the outgoing links through superposition coding. In the second game, the source nodes perform time-division multiplexing over their outgoing links. At the Nash equilibrium of both games, the total transmission power is minimized. Based on both games, we propose distributed and adaptive implementations. Simulation results illustrate the significant improvement of power consumption over direct transmission and the high convergence rate of our proposed algorithms.