一种无线通信发射功率控制方法设计

Design of Power Control Method For Wireless Communication Transmission

近些年来无线通信技术被广泛应用,然而目前存在的技术难点及不足是移动通信设备功耗较高,设备的续航能力不足以及对外存在较大的电磁辐射,另外移动通信设备的发射功率大多不能自动灵活实时配置。本文针对上述问题,基于主设备位置固定而从设备可移动的无线通信系统,设计了一种无线通信发射功率调节控制方法,通过将主设备接收信噪比与预期接收信噪比的比较结果反馈给从设备来进行功率调节,从而实现对从设备的发射功率调节控制,使其发射功率达到最优。经测试在同等条件下,采用本文所设计的发射功率控制方法,从设备平均发射功率约降低到传统方法的50%,续航时间约提高了一倍。

In recent years, wireless communication technology has been widely used. However, the current technical difficulties and shortcomings are that mobile communication equipment consumes a lot of power, the battery life is insufficient, and there is a large external electromagnetic radiation. In addition, the transmission power of mobile communication equipment usually cannot be controlled automatically and flexibly. Aiming at the above problems, this paper designs a power adjustment control method for wireless communication transmission based on the wireless communication system with fixed master device and mobile slave device. The method adjusts transmission power of slave device by feeding back the comparing results between the received signal-to-noise ratio and the expected signal-to-noise ratio of the master device. Therefore the power control of the slave device is realized, and the transmit power is optimized. After testing under the same conditions, using the transmission power control method designed in this paper, the average transmission power of the mobile device is reduced to about 50% of the traditional method, and the battery life is doubled.