Title :
Design and verification of a SAW based chirp spread spectrum system
Author :
Huemer, M. ; Pohl, A. ; Gugler, W. ; Springer, A. ; Weigel, R. ; Seifert, F.
Author_Institution :
Inst. for Commun. & Inf. Eng., Linz Univ., Austria
Abstract :
We report on the design and performance of a SAW based spread spectrum wireless LAN system which operates in the ISM band at 2.45 GHz. System IF frequency, transmission bandwidth and data rate are 348.8 MHz, 80 MHz, and 2 Mbit/s, respectively. Due to the high processing gain of 22 dB-made possible by the use of SAW devices-and the large transmission bandwidth, the system is insensitive against narrowband fading and noise. We give a brief system overview and present measurements of the data throughput. A comparison with simulation results, focused primarily on measured and modeled channel characteristics, is also presented.
Keywords :
UHF filters; digital radio; fading; microwave links; spread spectrum communication; surface acoustic wave filters; telecommunication channels; wireless LAN; 2 Mbit/s; 2.45 GHz; 22 dB; 348.5 MHz; 80 MHz; ISM band; SAW based chirp spread spectrum system; WLAN; channel characteristics; data throughput; narrowband fading; wireless LAN system; Bandwidth; Chirp; Frequency; Matched filters; Narrowband; Spread spectrum communication; Spread spectrum radar; Surface acoustic wave devices; Surface acoustic waves; Wireless LAN;
Conference_Titel :
Microwave Symposium Digest, 1998 IEEE MTT-S International
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-4471-5
DOI :
10.1109/MWSYM.1998.689353
