M-ary code shift keying impulse modulation combined with BPPM for UWB communications

被引：6

作者：

Erkuecuek, Serhat ^{[1
]}

Kim, Dong In ^{[1
]}

机构：

[1] Simon Fraser Univ, Sch Engn Sci, Burnaby, BC V5A 1S6, Canada

来源：

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2007年 / 6卷 / 06期

关键词：

M-ary code shift keying; combined MCSK/BPPM; time-hopping codes; ultra wideband (UWB) communications; increased data rate;

D O I：

10.1109/TWC.2007.05803

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：

A novel modulation format is proposed for time-hopping pulse position modulation (TH-PPM) ultra wideband (UWB) communications, where an orthogonal set of user-specific TH codes is employed for M-ary code shift keying (MCSK) to carry additional data. A particular TH code, selected by 1092 M-bit data, modulates the basic pulses (i.e., determines the location of the pulses), that are additionally time-shifted by binary PPM (BPPM), resulting in combined MCSK and BPPM (i.e., "MCSK/BPPM"). The combined modulation achieves increased data rate with respect to conventional TH-BPPM without affecting pulse shaping and can further improve the bit-error-rate (BER) performance. MCSK, which can also be employed by itself or combined with binary pulse amplitude modulation (PAM), is also shown to outperform TH M-ary PPM in dense multipath as it increases the diversity gain through randomized pulse locations.

引用

页码：2255 / 2265

页数：11

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