DocumentCode :
3429451
Title :
A New Multi-Access Scheme for PCTH UWB System
Author :
Sun, Bo ; Song, Zhengxun ; Hu, Zhen ; Guo, Bin
Author_Institution :
Sch. of Electron. Inf. Eng., Changchun Univ. of Sci. & Technol., Changchun
fYear :
2008
fDate :
12-14 Oct. 2008
Firstpage :
1
Lastpage :
4
Abstract :
Pseudo Chaotic Time Hoping (PCTH) is a recently proposed modulation scheme for UWB impulse radio. Unlike a typical TH-UWB, the PCTH-UWB system exploits concepts from symbolic dynamics to generate aperiodic sequences which modulate the position of pulses. The use of aperiodic TH sequence can enhance the spread-spectrum characteristics of UWB system by removing the spectral feature of the transmitted signal. In this paper, in order to improve the performance of conventional MA-PCTH-UWB system, we propose a new scheme for the multi-access communication of PCTH UWB system by transmitting specific training sequences which initialize the conditions of the shift registers for each user in each Ns frames. The performance of BER of this system is analyzed.
Keywords :
error statistics; multi-access systems; shift registers; ultra wideband communication; UWB impulse radio; aperiodic TH sequence; bit error rate; multi-access communication; pseudochaotic time hoping; shift registers; training sequences; Amplitude modulation; Bit error rate; Multiaccess communication; Multiple access interference; Pulse generation; Pulse modulation; Random variables; Shift registers; Spread spectrum communication; Sun;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-2107-7
Electronic_ISBN :
978-1-4244-2108-4
Type :
conf
DOI :
10.1109/WiCom.2008.250
Filename :
4678159
Link To Document :
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