Title :
Fast-acquisition algorithm for joint maximum-likelihood data and bit synchronization epoch estimation in burst direct-sequence spread-spectrum transmission
Author :
Rezeanu, Stefan-Cristian ; Ziemer, Rodger E.
Author_Institution :
Dept. of Electr. & Comput. Eng., Colorado Univ., Colorado Springs, CO, USA
Abstract :
We develop a fast-acquisition simplified joint maximum-likelihood (ML) estimation algorithm of the bit synchronization epoch and data bit values for a short-burst direct-sequence spread-spectrum (DSSS) transmission, in a white Gaussian noise environment. With respect to the optimal algorithm, the simplified procedure reduces the computational cost by more than one order of magnitude at no accuracy expense for carrier-to-noise ratios (CNRs) above 35 dB/spl middot/Hz.
Keywords :
Gaussian noise; maximum likelihood estimation; pseudonoise codes; spread spectrum communication; synchronisation; white noise; CNR; DSSS; bit synchronization epoch estimation; burst direct-sequence spread-spectrum transmission; carrier-to-noise ratios; computational cost reduction; data bit values; fast-acquisition algorithm; joint maximum-likelihood estimation algorithm; optimal algorithm; white Gaussian noise environment; Algorithm design and analysis; Delay estimation; Maximum likelihood detection; Maximum likelihood estimation; Phase estimation; Spread spectrum communication; Springs; Synchronization; Testing; Timing;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/4234.660795
