Performance of a Correlation-Based Detector for Packet Wireless Networks

Author

Khan, Sheehan ; Nagaraj, Sumeeth ; Schlegel, Christian ; Burnashev, Marat

Author_Institution

Univ. of Alberta, Edmonton

fYear

2007

fDate

22-26 April 2007

Firstpage

59

Lastpage

62

Abstract

The problem of preamble detection in the additive white Gaussian noise channel is considered. Performance bounds on locating the preamble sequence for uncoordinated packet-based communication systems are derived. The preamble sequence is differentially encoded and spread. At the receiver, a differential correlation-based threshold detector is employed to locate the preamble boundaries. Simulation results are presented to validate the analytical expressions. It is found that by taking 2 sample per chip the detector can be used to provide chip synchronization, with little deviations in system performance from the chip synchronous case.

Keywords

AWGN; packet radio networks; radio receivers; synchronisation; wireless channels; additive white Gaussian noise channel; chip synchronization; correlation-based detector; differential encoding; packet wireless networks; packet-based communication; preamble sequence; Additive white noise; Binary phase shift keying; Detectors; Frequency estimation; Frequency synchronization; Payloads; Phase estimation; System performance; Timing; Wireless networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 2007. CCECE 2007. Canadian Conference on

Conference_Location

Vancouver, BC

ISSN

0840-7789

Print_ISBN

1-4244-1020-7

Electronic_ISBN

0840-7789

Type

conf

DOI

10.1109/CCECE.2007.22

Filename

4232681