Summary
International Technical Conference on Circuits/Systems, Computers and Communications
2008
Session Number:P2
Session:
Number:P2-91
A New Receiver Structure for Performance Enhancement in CSS
Yeong-Sam Kim, Jin-Doo Jeong, Jong-Wha Chong,
pp.-
Publication Date:2008/7/7
Online ISSN:2188-5079
Summary:
We propose a new receiver structure for chirp spread spectrum (CSS) based on the characteristics of the CSS signals which are alternatively transmitted in low and high band in order to improve detection performance. The conventional channel filter performs the filtering of entire signal bandwidth in a passband, but there happens a problem that excessive noise in neighboring sub-band is added while one of signals in two sub-bands is received. The dual-band filtering method proposed in this letter is based on two filters which are designed to be matched well with alternatively received CSS signals and excludes the undesired noise. Simulation result shows that the proposed method has better bit error rate (BER) performance about 1.6dB than the conventional one.