| 应用于LTE-OFDM系统的Viterbi译码在FPGA中的实现 |
| |
| 引用本文： | 李小文,林丹.应用于LTE-OFDM系统的Viterbi译码在FPGA中的实现[J].电子技术应用,2009,35(7). |
| |
| 作者姓名： | 李小文 林丹 |
| |
| 作者单位： | 重庆邮电大学计算机学院,重庆,400065 |
| |
| 摘 要： | 在OFDM系统中,为了获得正确无误的数据传输,要采用差错控制编码技术。LTE中采用Viterbi和Turbo加速器来实现前向纠错。提出一种在FPGA中实现的基于软判决的Viterbi译码算法,并以一个(2,1,2)、回溯深度为10的软判决Viterbi译码算法为例验证该算法,在Xilinx的XC3S500E芯片上实现了该译码器,最后对其性能做了分析。
|
| 关 键 词： | OFDM Viterbi译码 软判决 FPGA |
FPGA implementation of a viterbi decoder applied on LTE-OFDM system |
| |
| LI Xiao Wen,LIN Dan.FPGA implementation of a viterbi decoder applied on LTE-OFDM system[J].Application of Electronic Technique,2009,35(7). |
| |
| Authors: | LI Xiao Wen LIN Dan |
| |
| Abstract: | In OFDM system, the error control coding techniques is used for attaining accurate data transmitting. Viterbi and Turbo accelerators are applied on LTE to achieve the FEC. This paper presents an FPGA implementation of Viterbi algorithm based on soft-decision, and verifies it through an example which is(2,1,2) and the trace-back depth is 10. This decoder is implemented in Xilinx′s XC3S500E chip. Finally, the algorithm performance is analyzed. |
| |
| Keywords: | OFDM FPGA |
| 本文献已被 万方数据 等数据库收录！ |
|
