Abstract
Aim To achieve higher bandwidth efficiency and more coding gains and reduce the implementation complexity of encoding/decoding. Methods The schemes of concatenating RS (Reed-Solomon) codes with bandwidth efficient P-TCM (pragmatic trellis coded-modulation) 8 PSK or 16 PSK codes were proposed. Their performances on Gaussian channel were investigated by analysis and computer simulations. Results When the BER(bit error probability) Pb= 10 -4 the concatenated coding schemes can obtain additional 1 dB coding gain over only one code's P-TCM systems. When Pb=10-7 they can obtain extra 3 dB coding gains over P-TCM. Conclusion As Pb decreases, the concatenation systems of RS codes with P-TCM can get much more coding gains over the single code P-TCM. systems.
Original language | English |
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Pages (from-to) | 63-67 |
Number of pages | 5 |
Journal | Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology |
Volume | 19 |
Issue number | 1 |
Publication status | Published - 1999 |
Keywords
- Channel coding
- Concatenated codes
- Reed-Solomon codes
- Trellis coded modulation