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面向DVB-S2標(biāo)準(zhǔn)LDPC碼的高效編碼結(jié)構(gòu)

蘭亞柱 楊海鋼 林郁

蘭亞柱, 楊海鋼, 林郁. 面向DVB-S2標(biāo)準(zhǔn)LDPC碼的高效編碼結(jié)構(gòu)[J]. 電子與信息學(xué)報(bào), 2016, 38(7): 1781-1787. doi: 10.11999/JEIT151198
引用本文: 蘭亞柱, 楊海鋼, 林郁. 面向DVB-S2標(biāo)準(zhǔn)LDPC碼的高效編碼結(jié)構(gòu)[J]. 電子與信息學(xué)報(bào), 2016, 38(7): 1781-1787. doi: 10.11999/JEIT151198
LAN Yazhu, YANG Haigang, LIN Yu. Efficient Encoding Architecture for LDPC Code Based on DVB-S2 Standard[J]. Journal of Electronics & Information Technology, 2016, 38(7): 1781-1787. doi: 10.11999/JEIT151198
Citation: LAN Yazhu, YANG Haigang, LIN Yu. Efficient Encoding Architecture for LDPC Code Based on DVB-S2 Standard[J]. Journal of Electronics & Information Technology, 2016, 38(7): 1781-1787. doi: 10.11999/JEIT151198

面向DVB-S2標(biāo)準(zhǔn)LDPC碼的高效編碼結(jié)構(gòu)

doi: 10.11999/JEIT151198
基金項(xiàng)目: 

國家自然科學(xué)基金(61404140, 61271149, 61106033)

Efficient Encoding Architecture for LDPC Code Based on DVB-S2 Standard

Funds: 

The National Natural Science Foundation of China (61404140, 61271149, 61106033)

  • 摘要: 面向DVB-S2標(biāo)準(zhǔn)LDPC碼,該文旨在實(shí)現(xiàn)一種基于FPGA的高效編碼結(jié)構(gòu),提出一種快速流水線并向遞歸編碼算法,可以顯著提高編碼數(shù)據(jù)信息吞吐率。同時(shí),通過并向移位運(yùn)算和并向異或運(yùn)算的處理結(jié)構(gòu)計(jì)算編碼中間變量及校驗(yàn)位信息,在提高編碼并行度的同時(shí)可有效減少存儲(chǔ)資源的消耗。此外,針對(duì)動(dòng)態(tài)自適應(yīng)編碼的情況優(yōu)化了LDPC碼編碼存儲(chǔ)結(jié)構(gòu),有效復(fù)用了數(shù)據(jù)存儲(chǔ)單元和RAM地址發(fā)生器,進(jìn)一步提高FPGA的硬件邏輯資源利用率。針對(duì)DVB-S2標(biāo)準(zhǔn)LDPC碼,基于Stratix IV系列FPGA的驗(yàn)證結(jié)果表明,所提編碼結(jié)構(gòu)在系統(tǒng)時(shí)鐘為126.17 MHz時(shí),編碼數(shù)據(jù)信息吞吐率達(dá)20 Gbps以上。
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    蘭亞柱, 楊海鋼, 林郁. 動(dòng)態(tài)自適應(yīng)低密度奇偶校驗(yàn)碼譯碼器的FPGA實(shí)現(xiàn)[J]. 電子與信息學(xué)報(bào), 2015, 37(8): 1937-1943. doi: 10.11999/JEIT141609.
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出版歷程
  • 收稿日期:  2015-10-29
  • 修回日期:  2016-03-15
  • 刊出日期:  2016-07-19

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