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Research on Channel Codec of DCR System Based on CMX7141
College of Electronic and Information Engineering, Shenyang aerospace university, Shenyang, China; National Mobile Communications Research Laboratory, Southeast University, Nanjing, China
College of Electronic and Information Engineering, Shenyang aerospace university, Shenyang, China
College of Electronic and Information Engineering, Shenyang aerospace university, Shenyang, China
- 1 College of Electronic and Information Engineering, Shenyang aerospace university, Shenyang, China; National Mobile Communications Research Laboratory, Southeast University, Nanjing, China
- 2 College of Electronic and Information Engineering, Shenyang aerospace university, Shenyang, China
- 3 College of Electronic and Information Engineering, Shenyang aerospace university, Shenyang, China
Communications and Network·Volume 05 (2013)·Pages 286–291·Published 27 September 2013·DOI10.4236/cn.2013.53B2053
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Abstract
This article introduces a digital private network of mobile communication dedicated chipset CMX7141 that used for the 4FSK modulation and demodulation in DCR system, and introduces the application of CMX7141 inthe DCR system. Focus research on the channel codec techniques of the chip and have a simulation on the channel coding and decoding. The simulation results indicate that, through channel error correction technique in CMX7141, the BER of DCR system reduces greatly and the transmission quality of DCR system is improved.
KeywordsDCRCMX7141Cyclic Redundancy CheckPunctured Convolutional Coding
- ETSITR 102 398V1.1.2 (2008-05). Electromagnetic Compatibility and Radio Spectrum Matters (ERM); Digital Mobile Radio (DMR) General System Design. ETSI, 2008.
- ETSITR 102 490V1.2.1 (2006-08). Electromagnetic compatibility and Radio Spectrum Matters (ERM); Peer-to-Peer Digital Private Mobile Radio (DPMR) using FDMA with a Channel Spacing of 6,25 kHz with e.r.p. of up to 500 mW. ETSI, 2006.
- Digital Convenience Radio Equipment for Simplified Service V.1.3 Association of Radio Industries and Businesses. 2012.12.18.http://www.arib.or.jp/english/html/overview/doc/1-STD-T98v1_3.pdf.
- CML Microcircuits. Datasheet of CMX7131/CMX7141 Digital PMR Processor DCR Operation. CML Microcircuits, 2011.
- R. Prevost, M. Coulon, D. Bonacci, et al., “CRC-assisted Error Correction in a Trellis Coded System with Bit Stuffing,” Statistical Signal Processing Workshop (SSP), 2011 IEEE. Nice: SSP, 2011.pp. 381-384.
- B. F. Uchoa-Filho, D. R. Souza, C. Pimentel, et al., “Generalized Punctured Convolutional Codes,” Communications Letters, IEEE. Sep. 2005. pp. 1070-1072.
- J. Geldmacher and J. Goetze “Syndrome Former Trellis Construction for Punctured Convolutional Codes,” Information Theory and its Applications (ISITA), 2010 International Symposium on. Taichung: ISITA. 2010. pp.478-483.
- A. Katsiotis and N. Kalouptsidis, “On (n, n-1) Punctured Convolutional Codes and Their Trellis Modules,” Communications, IEEE Transactions on, 2011, pp. 1213-1217.