Title :
GPU based software DVB-T receiver design
Author :
Kyu-Hyung Lee ; Seo Weon Heo
Author_Institution :
Sch. of Electron. & Electr. Eng., Hongik Univ., Seoul, South Korea
Abstract :
This paper presents the GPU based software DVB-T receiver design. We first propose the software DVB-T receiver using just one CPU core and investigate the gap between the required time budget and the actual simulation time. Based on the simulation results we partition the algorithm such that some of the algorithm corresponding to the critical path can be processed by the GPU which adopts massively parallel processing elements. To increase the thread usage we design software algorithms which reduce the FFT and Viterbi decoding processing time by the ratio of 10~20 times compared with the CPU based processing.
Keywords :
Viterbi decoding; digital video broadcasting; fast Fourier transforms; graphics processing units; parallel processing; telecommunication computing; television receivers; CPU based processing; CPU core; FFT; GPU based software DVB-T receiver design; Viterbi decoding processing time; actual simulation time; critical path; parallel processing elements; software algorithms; thread usage; time budget; Decoding; Digital video broadcasting; Graphics processing units; Instruction sets; Receivers; Viterbi algorithm; DVB-T; GPU; SDR; Software modem;
Conference_Titel :
Consumer Electronics (ICCE), 2013 IEEE International Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4673-1361-2
DOI :
10.1109/ICCE.2013.6487027
