Title :
A SAW matched filter based spread spectrum technique for indoor multiple access systems
Author :
Zhongping Zhang ; Seifert, Frank ; Weigel, Robert
Author_Institution :
Lehrstuhl fur Hochfrequenztech., Tech. Univ. Munchen, Germany
Abstract :
Surface Acoustic Wave (SAW) tapped delay lines and convolvers functioning as Matched Filters (MFs) are of superior advantages in broadband spread spectrum communication systems in comparison to digital signal processors. SAW MFs allow indoor systems to have a bandwidth larger than the coherence bandwidth of the indoor radio channel. A multiple access technique called Time Code Division Multiple Access (TCDMA) based on SAW MFs is proposed. Using Gold codes of length 128 as spreading codes, our uplink performance simulation results reveal the capacity of TCDMA in a typical indoor cell.<>
Keywords :
UHF filters; correlators; indoor radio; matched filters; multi-access systems; spread spectrum communication; surface acoustic wave delay lines; surface acoustic wave filters; Gold codes; SAW matched filter; TCDMA; broadband communication systems; convolvers; indoor multiple access systems; spread spectrum technique; spreading codes; surface acoustic wave devices; tapped delay lines; time code division multiple access; uplink performance simulation; Acoustic waves; Bandwidth; Broadband communication; Coherence; Convolvers; Delay lines; Digital signal processors; Matched filters; Spread spectrum communication; Surface acoustic waves;
Conference_Titel :
Microwave Symposium Digest, 1995., IEEE MTT-S International
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-2581-8
DOI :
10.1109/MWSYM.1995.406130
