采用频域导频的块传输
doi: 10.3724/SP.J.1146.2006.00548
A Block Transmission with Frequency Domain Pilots
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摘要: 该文设计了一种采用频域导频的块传输方案，并提出了适用于该方案的复杂度较低的接收信号处理算法，包括信道估计算法、均衡解调算法。与现有的PN导频方案构成的块传输方案相比，该文的频域导频块传输方案在没有误码性能损失的前提下大大降低了计算复杂度。仿真验证了该方法的有效性。
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关键词:
- 正交频分复用;信道估计;单载波频域均衡
Abstract: A block transmission scheme with frequency domain pilots is proposed. Algorithms with low complexity are proposed too, which include channel estimation and equalization algorithm. Compared with the existed block transmission scheme with PN pilots, it is proved by simulations that the block transmission scheme with frequency domain pilots achieves reducing complexity without loss of BER performance. -
Wang Jun and Yang Zhi-Xing, et al.. Iterative padding subtraction of the PN sequence for the TDS-OFDM over Broadcast Channels [J].IEEE Trans. on Consumer Electronics.2005, 51(4):1148-1152[2]焦现军. 导频辅助的块传输技术. [博士论文]. 北京: 北京大学, 2006.[3]Falconer D, Ariyavisitakul S L, and Benyamin-Seeyar A, et al.. Frequency domain equalization for single-carrier broadband wireless systems[J]. IEEE Commun Mag., 2002, 40(4): 58-66.[4]Sari H, Karam G, and Jeanclaude I. Transmission techniques for digital terrestrial TV broadcasting[J]. IEEE Commun. Mag., 1995, 33(2): 100-109.[5]Song Bowei, Gui Lin, and Guan Yunfeng, et al.. On channel estimation and equalization in TDS-OFDM based terrestrial HDTV broadcasting system[J].IEEE Trans. on Consumer Electronics.2005, 51(3):790-[6][6] ETSI. Digital Video Broadcasting (DVB); Framing structure, channel coding and modulation for digital terrestrial television[S]. European Telecommunication Standard EN 300744, 2004. -
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