多标准无线通信接收机中高速可重构滤波器组的FPGA实现
FPGA Implementation of High Speed Reconfigurable Filter Bank for Multi-standard Wireless Communication Receivers
摘要：
在下一代无线通信系统中，无线收发机需要能够处理多种通信标准的宽带输入信号，这种多标准无线通信接收机（MWCR）需要滤波器组从宽带输入频谱中提取所需信号并将其带到基带，以进行进一步的信号处理任务，如频谱感知、调制分类、解调等。相反，任何无线接收机、调制滤波器组（例如离散傅立叶变换滤波器组（DFTFB））由于其优点（例如较低的面积、延迟和功率要求）而优选。为了支持多标准操作，将DFTFB与系数抽取方法相结合，提出了可重构DFTFB（RDFTFB）。本文提出了一种在Virtex-7现场可编程门阵列（FPGA）上实现RDFTFB的高效高速方法，该方法通过减小时钟寄存器之间的关键路线延迟，显著提高了RDFTFB的最高工作频率。从数值上看，该实现方案使RDFTFB的最大时钟频率提高了89.7%，动态功耗降低了18.5%。
英文摘要：
In next generation wireless communication system, wireless transceivers should be able to handle wideband input signals compromising of multiple communication standards.Such multi-standard wireless communication receivers (MWCRs) need filter bank to extract the desired signal of interest from wideband input spectrum and bring it to the baseband for further signal processing tasks such as spectrum sensing, modulation classification,demodulation etc.In MWCRs,rather any wireless receivers, modulated filter banks, such as Discrete Fourier Transform Filter Banks (DFTFB), are preferred due to their advantages such as lower area, delay and power requirements. To support multi-standard operation, reconfigurable DFTFB (RDFTFB) was proposed by integrating DFTFB with the coefficient decimation method. In this paper, an efficient high speed implementation of RDFTFB on Virtex-7 field programmable gate arrays (FPGA) has been proposed.The proposed approach minimizes the critical path delay between clocked registers thereby leading to significant improvement in the maximum operating frequency of the RDFTFB. Numerically, the proposed implementation leads to 89.7% improvement in the maximum frequency at which RDFTFB can be clocked.Furthermore,proposed implementation leads to 18.5% reduction in the dynamic power consumption.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
