Paper Info
Title
Two-Stage Acquisition in Time-Hopping Impulse Radio Systems for UWB Communications
Abstract
Ultra wideband impulse radio is a promising radio technology for networks delivering extremely high data rates at short ranges. The use of extremely short duration pulses however makes synchronization task more difficult. In this paper a two-stage acquisition with serial search noncoherent correlator for time hopping impulse radio is proposed. The proposed two-stage acquisition scheme gets chip timing synchronization, and aligns phase of the local time-hopping code in two stages successively. With the aid of flow-graph approach, the analytical expressions are presented for the mean acquisition time and the probability of acquisition. Numerical results in a slow fading channel show that the proposed two-stage acquisition method can offer much shorter mean acquisition time or much higher probability of acquisition than that of the conventional acquisition.
Year
DOI
Venue
2007
10.1109/TWC.2007.05893
IEEE Transactions on Wireless Communications
Keywords
Field
DocType
impulse radio,conventional acquisition,mean acquisition time,proposed two-stage acquisition scheme,proposed two-stage acquisition method,ultra wideband impulse radio,shorter mean acquisition time,two-stage acquisition,promising radio technology,uwb communications,time-hopping impulse radio systems,chip timing synchronization,fading channel,indexing terms,synchronisation,synchronization,time hopping,chip,wireless communication,matched filters,local time,upper bound,fading,correlators,bandwidth,correlation,data acquisition,probability,ultra wideband
Correlation function (quantum field theory),Synchronization,Fading,Data acquisition,Impulse (physics),Chip,Real-time computing,Ultra-wideband,Time-hopping,Mathematics
Journal
Volume
Issue
ISSN
6
10
1536-1276
Citations 
PageRank 
References 
3
0.62
11
Authors
2
Name
Order
Citations
PageRank
Yuanliang Huang1314.51
Jiangzhou Wang22674212.44