基于软件无线电的改进级联码验证实现

doi:10.3969/j.issn.0255-8297.2017.02.002

Journal of Applied Sciences ›› 2017, Vol. 35 ›› Issue (2): 149-159.doi: 10.3969/j.issn.0255-8297.2017.02.002

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Implementation and Verification of Improved Concatenated Code Based on Software-Defined Radio

GAO Shu-li, CHEN Wei-gang, YANG Jin-sheng

School of Electronic Information Engineering, Tianjin University, Tianjin 300072, China

Received:2016-09-14 Revised:2016-10-24 Online:2017-03-30 Published:2017-03-30

Abstract

Abstract:

A concatenated code combining an low-density parity-check (LDPC) code with a Reed-Solomon (RS) code, is designed based on the software-defined radio platform formed by universal software radio peripheral (USRP), which has compatible parameters with digital video broadcasting-terrestrial (DVB-T). Compared with the concatenated code combining a convolutional code with an RS code in DVB-T, the designed concatenated code obtains excellent error-correction performance, since LDPC performs better than the convolutional code, and the RS code can further eliminate error floor of the LDPC code. The designed code is implemented on a USRP platform. Its performance is tested in a wireless channel. The results show that high performance gain can be achieved by using the designed concatenated code as compared with the concatenated code in DVB-T.

Key words: concatenated code, convolutional code, software-defined radio, low-density parity-check (LDPC) code

CLC Number:

TN911

GAO Shu-li, CHEN Wei-gang, YANG Jin-sheng. Implementation and Verification of Improved Concatenated Code Based on Software-Defined Radio[J]. Journal of Applied Sciences, 2017, 35(2): 149-159.

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Implementation and Verification of Improved Concatenated Code Based on Software-Defined Radio

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