Maximum likelihood clock and carrier recovery in a direct sequence spread spectrum communication system

Author

Barman, Kaushik ; Reddy, V. Umapathi

Author_Institution

Hellosoft Pvt. Ltd., Hyderabad, India

fYear

2002

fDate

15-17 Dec. 2002

Firstpage

322

Lastpage

325

Abstract

Clock and carrier recovery are very critical in high speed digital wireless communication for achieving high data rate with low packet error rate. In this paper, we propose a linear estimator for both clock and carrier recovery in a direct sequence spread spectrum (DSSS) communication system and show that this is also the maximum likelihood (ML) estimator. We present simulation results to illustrate the convergence of the estimator under different multipath channel conditions.

Keywords

convergence of numerical methods; data communication; digital radio; error statistics; maximum likelihood estimation; mobile radio; multipath channels; packet radio networks; spread spectrum communication; synchronisation; DSSS communication; ML estimator; carrier recovery; clock recovery; convergence; data rate; direct sequence spread spectrum communication; high speed digital wireless communication; linear estimator; maximum likelihood estimator; multipath channel; packet error rate; simulation; Analog-digital conversion; Clocks; Frequency; Maximum likelihood estimation; Phase locked loops; Sampling methods; Spread spectrum communication; Transmitters; Wireless LAN; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal Wireless Communications, 2002 IEEE International Conference on

Print_ISBN

0-7803-7569-6

Type

conf

DOI

10.1109/ICPWC.2002.1177302

Filename

1177302