DS-BPAM UWB system-coded and uncoded scheme

被引：0

作者：

Bai, ZQ ^{[1
]}

Liu, W ^{[1
]}

Xu, SY ^{[1
]}

Zhang, WH ^{[1
]}

Kwak, K ^{[1
]}

机构：

[1] Inha Univ, UWB Wireless Commun Res Ctr, INHA UWB, ITRC,Grad Sch Informat Technol & Telecommun, Inchon 402751, South Korea

来源：

INTERNATIONAL SYMPOSIUM ON COMMUNICATIONS AND INFORMATION TECHNOLOGIES 2005, VOLS 1 AND 2, PROCEEDINGS | 2005年

关键词：

direct sequence spread spectrum (DSSS); ultra wideband (UWB); Viterbi Algorithm (VA); soft output Viterbi algorithm (SOVA);

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The performance of two direct sequence ultra wideband (DS-UWB) communication systems is investigated. The first system is the classic DS-UWB system. The second is our proposed coded DS-UWB system, obtained by adding a forward error correcting codes (FEC), namely convolutional code. In our coded scheme, we use two decoding strategies, one is Viterbi Algorithm, and the other is soft output Viterbi algorithm (SOVA). For the two systems, binary pulse amplitude modulation is applied. The performance of these two systems Is analyzed in detail under AWGN channel. The analysis shows that the coded DS-UWB system outperforms the DS-UWB system significantly and the SOVA scheme is much better than the VA scheme. Simulation results on the bit error rate of the proposed system indicates that the coded scheme is capable to work in lower SNR and therefore supports higher data transmission rates compared to the previously proposed UWB communication systems.

引用

页码：667 / 670

页数：4

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