Title :
Time-hopping sequences construction with few-hit zone for quasi-synchronous THSS-UWB systems
Author :
Zhang, Zhenyu ; Zeng, Fanxin ; Ge, Lijia
Author_Institution :
Graduate Sch., Chongqing Commun. Inst., China
fDate :
30 May-1 June 2005
Abstract :
In this paper, a novel time-hopping (TH) sequences construction algorithm is presented for quasi-synchronous time-hopping spread spectrum ultra wideband (THSS-UWB). The algorithm on the basis of the known frequency-hopping (FH) sequences is a trade-off between TH correlation properties and the family size of TH sequences. By such an algorithm, a large number of TH sequences with few-hit zone (FHZ) can be constructed. These FHZ TH sequences have good TH correlation properties. THSS-UWB systems employing such FHZ TH sequences will be with less multi-user interference (MUI) if the maximum delay is shorter than the length of the FHZ.
Keywords :
frequency hop communication; radiofrequency interference; spread spectrum communication; ultra wideband communication; few-hit zone; frequency-hopping sequences; maximum delay; multiuser interference; quasisynchronous THSS-UWB systems; quasisynchronous time-hopping spread spectrum ultra wideband systems; time-hopping sequences; Delay; Educational institutions; Frequency; Interference; Multiaccess communication; Pulse modulation; Spread spectrum communication; Time division multiple access; Ultra wideband technology; MUI; THSS-UWB; ZCZ; few-hit zone; frequency-hopping sequences; no-hit zone; time-hopping sequences;
Conference_Titel :
Vehicular Technology Conference, 2005. VTC 2005-Spring. 2005 IEEE 61st
Print_ISBN :
0-7803-8887-9
DOI :
10.1109/VETECS.2005.1543673
