In order to meet the requirements of mine Internet of things（ Io T） perception layer Qo S

a wireless cooperative communication mechanism based on cross-layer design is proposed. In Nakagami-m fading channel

through cross-layer design of physical layer adaptive modulation coding（ AMC） and link layer HARQ protocol

HARQ cooperation mechanism of wireless communication network is studied

and the total energy consumption expression of the cooperative transmission system is deduced

a cross-layer optimization model is established. A network lifetime maximizing power allocation algorithm（ NLMPAA） based on greedy strategy is proposed

optimize the power matrix under the premise of ensuring the bit error rate index and in range of maximum power constraint

maximize network lifetime. Simulation results show that the lifetime of network based on the cooperation mechanism is significantly better than that of the non cooperative network

the NLMPAA proposed in this paper can extend the network lifetime more than 20 %.