一种基于多核DSP的Turbo译码实现方法

Turbo Decoding Method Based on Multi-core DSP

随着无线通信系统传输速率的不断提高,采用单核DSP进行数字基带处理的系统已经不能满足日益增加的复杂度及实时性要求.基于LTE-A系统的Turbo译码原理,设计了一种Turbo译码在TMS320C6670多核DSP中的实现方法,并对处理结果进行验证,比较分析了同平台下的多核协处理器与单核处理器的运行效率.测试结果表明,所提出的TCP3d译码实现方法的处理性能远高于传统的单核DSP.此方法具有较高的工程应用价值,并对其他多核DSP的此类应用开发具有一定的参考意义.

With the ever-increasing transmission rate of wireless communication systems,systems that use a single-core DSP for digital baseband processing cannot meet the ever-increasing complexity and real-time requirements. Based on Turbo decoding principle of LTE-A system,a realization method of Turbo decoding in TMS320 C6670 multi-core DSP is designed,and the processing results are verified. The multi-core coprocessors and single-core processors under the same platform are compared and analyzed. The operating efficiency. The test results showthat the performance of the proposed TCP3 d decoding method is much higher than that of the traditional single-core DSP. This method has high engineering application value and has certain reference significance for the development of such multi-core DSP applications.