Outage Minimization Cooperative Strategy and Power Allocation
Li Tan · Journal of Chinese Computer Systems · 2010
Based on the limited feedback,proposed an outage minimization cooperative strategy for a cooperative system where the total power of the source and the relay are subject to an average constraint.For decode-and-forward and direct transmission modes,on the channel gain coordinates plane,we derive the outage minimization transmission mode region under equal and optimum power allocation,respectively.According to the proposed algorithm,the destination just checks the current channel state information to see which transmission region it belongs to and then feedback a transmission parameter to the source and the relay.Compared to the traditional algorithms,the proposed strategy can precisely decide the outage minimization transmission mode under any given channel state and can also substantially reduce feedback rate and computation complexity.