Based on the Nakagami channel and considering the node circuit processing energy consumption, this paper studies the opportunistic cooperative transmission and its performance in wireless sensor networks, solves the three problems of \"how to cooperate\", \"when to cooperate\" and \"performance of cooperation\", and theoretically analyzes the possibility of opportunistic cooperation. The simulation results show that: opportunistic cooperative transmission can effectively improve system performance; the circuit processing energy consumption of the node will affect the system performance. When the node circuit processing energy consumption is large to a certain extent, opportunistic cooperative transmission cannot bring any performance gain.
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