Title :
Effect of correlation between subcarriers of an MCM/DSSS communication system
Author :
Ziemer, Rodger E. ; Nadgauda, Nikhil
Author_Institution :
Dept. of Electr. & Comput. Eng., Colorado Univ., Colorado Springs, CO, USA
Abstract :
The analysis of a combined multicarrier modulation/direct-sequence spread-spectrum (DSSS) modem carried out by Kondo and Milstein (see IEEE Trans. on Commun., 1995) in delay spread multipath is extended to include the effect of correlation between the DSSS subcarriers due to an exponential power delay profile. Analytical and simulation results show that additional diversity gain can be achieved with more subcarriers, but at the expense of multiple access capability. Eventually, an irreducible bit error probability (BEP) is approached as more subcarriers are used
Keywords :
correlation methods; delays; diversity reception; modems; modulation; multipath channels; pseudonoise codes; spread spectrum communication; DSSS subcarriers; MCM/DSSS communication system; analytical results; correlation; delay spread multipath; direct sequence spread spectrum; diversity gain; exponential power delay profile; irreducible bit error probability; modem; multicarrier modulation; multiple access; simulation results; Bandwidth; Delay effects; Diversity reception; Fading; Frequency; Modems; Power system modeling; Random variables; Spread spectrum communication; Springs;
Conference_Titel :
Vehicular Technology Conference, 1996. Mobile Technology for the Human Race., IEEE 46th
Print_ISBN :
0-7803-3157-5
DOI :
10.1109/VETEC.1996.503425
