M-ary code-selected DS-BPAM UWB system with SRake receiver over multipath channels

被引:0
|
作者
Bai, Zhiquan [1 ]
Xu, Shaoyi [1 ]
Kwak, Kyungsup [1 ]
机构
[1] Inha Univ, Grad Sch Informat Technol & Telecommun, UWB Wireless Commun Res Ctr, ITRC, Inchon, South Korea
关键词
direct sequence spread spectrum (DSSS); ultra wideband (UWB); bipolar pulse amplitude modulation (BPAM); selective diversity combining Rake (SRake);
D O I
10.1109/CROWNCOM.2007.4549829
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this paper, we consider an M-ary code selected direct sequence bipolar pulse amplitude modulation (MCSDS-BPAM) ultra wideband system. The system performance and analysis over realistic IEEE UWB multipath fading channels are evaluated in the condition of perfect time synchronization and selective diversity combining Rake (SRake) receiver. In the transmitter, a particular DS code sequence can be selected by the log(2)(M/2) bits from the DS code set. The corresponding SRake receiver structure is designed according to the transmitter. This scheme can improve the system performance and increase the data rate by a factor 1092(M) compared with the conventional DS-BPAM UWB system. With the increase of the modulation level M and the SRake ringers, the system performance can be improved for the same signal energy per bit.
引用
收藏
页码:389 / 393
页数:5
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