TY - JOUR
T1 - A Worst-Case Analysis of Direct-Sequence Spread-Spectrum in Multipath Channels
AU - Hizlan, Murad
AU - Liu, Xuedong
N1 - Hizlan, M., , & Liu, X. (1999). A worst-case analysis of direct-sequence spread-spectrum in multipath channels. Journal of The Franklin Institute, 336(4), 611-625.
PY - 1999/5/1
Y1 - 1999/5/1
N2 - We consider a direct - sequence spread - spectrum system operating in an indoors environment in the presence of multiaccess and multipath interference, and additive white Gaussian noise. We focus on the worst - case bit error probability of this system with a constraint on signal-to-interference ratio, and derive a Chernoff-type upper bound on this error probability. We evaluate the upper bound for a special case in order to gain understanding of the basic worst - case performance. We also compare the effects of the worst - case multipath interference with those of the worst - case multiuser interference of equivalent noise power, and observe that the worst - case performance under multipath interference is very similar to and only slightly worse than that under multiuser interference. We find out that the worst - case performance can be very good for a large number of chips per bit, whereas it is very poor for a smaller number of chips per bit, and for non- spread - spectrum systems.
AB - We consider a direct - sequence spread - spectrum system operating in an indoors environment in the presence of multiaccess and multipath interference, and additive white Gaussian noise. We focus on the worst - case bit error probability of this system with a constraint on signal-to-interference ratio, and derive a Chernoff-type upper bound on this error probability. We evaluate the upper bound for a special case in order to gain understanding of the basic worst - case performance. We also compare the effects of the worst - case multipath interference with those of the worst - case multiuser interference of equivalent noise power, and observe that the worst - case performance under multipath interference is very similar to and only slightly worse than that under multiuser interference. We find out that the worst - case performance can be very good for a large number of chips per bit, whereas it is very poor for a smaller number of chips per bit, and for non- spread - spectrum systems.
UR - https://engagedscholarship.csuohio.edu/enece_facpub/72
U2 - 10.1016/S0016-0032(97)00078-1
DO - 10.1016/S0016-0032(97)00078-1
M3 - Article
VL - 336
JO - Journal of the Franklin Institute-Engineering and Applied Mathematics
JF - Journal of the Franklin Institute-Engineering and Applied Mathematics
ER -