Design and performance analysis of a convolutionally coded overlapping multicarrier DS/CDMA system
Design and performance analysis of a convolutionally coded overlapping multicarrier DS/CDMA system
复制标题
卷积编码重叠多载波DS/CDMA系统的设计和性能分析
DOI：
10.1109/25.892597
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
Jooshik Lee
中科院分区：
文献类型：
--
作者：
Y. Kim;I. Song;H. Kim;Jooshik Lee
我们考虑在时间有限和带宽有限的信道中使用重叠子信道的卷积编码多载波直接序列码分多址（DS/CDMA）系统。当信道状态信息理想可用时，在瑞利衰落信道中获得对解码器输出的误码概率的严格追踪。结果表明，所提出的系统，即具有利用分集的符号映射方法的卷积编码重叠多载波DS/CDMA系统，优于使用相同卷积码的传统单载波和非重叠多载波系统。它还表明，与传统系统相比，所提出的系统可以提供更大的系统容量，并且更有效地抵抗部分频带干扰。
We consider convolutionally coded multicarrier direct-sequence code-division multiple access (DS/CDMA) systems using overlapping subchannels in time-limited and band-limited channels. A tight hound on the bit error probability of the decoder output is obtained in Rayleigh fading channels when the channel state information is ideally available. It is shown that the proposed system, the convolutionally coded overlapping multicarrier DS/CDMA system with a symbol mapping method utilizing the diversity, outperforms the conventional single carrier and nonoverlapping multicarrier systems using the same convolutional code. It is also shown that the proposed system can provide a larger system capacity and more effectively combat the partial band interference than the conventional ones.