DocumentCode
444536
Title
Outage probability lower bound in CDMA systems with lognormal-shadowed multipath Rayleigh-faded and noise-corrupted links
Author
Ismail, Mahmoud H. ; Matalgah, Mustafa M.
Author_Institution
Dept. of Electr. Eng., Mississippi Univ., MS, USA
Volume
1
fYear
2005
fDate
13-16 June 2005
Firstpage
588
Abstract
The outage probability is one of the common metrics used in performance evaluation of cellular networks. In this paper, we derive a lower bound on the outage probability in CDMA systems where the communication links are disturbed by co-channel interference as well as additive noise. Each link is assumed to be faded according to both a lognormal distribution and a multipath Rayleigh distribution where the former represents the effect of shadowing while the latter represents the effect of short-term fading. The obtained lower bound is given in terms of a single-fold integral that can be easily computed using any modern software package. We present numerical results for the derived bound and compare them with the outage probability obtained by means of Monte Carlo simulations. Based on our results, we conclude that the proposed bound is relatively tight in a wide range of situations, particularly, in the case of small to moderate number of interferers and small to moderate shadowing standard deviation values.
Keywords
Monte Carlo methods; Rayleigh channels; cellular radio; cochannel interference; code division multiple access; log normal distribution; multipath channels; radio links; CDMA systems; Monte Carlo simulations; additive noise; cellular networks; cochannel interference; communication links; lognormal distribution; lognormal-shadowed multipath Rayleigh-faded links; modern software package; multipath Rayleigh distribution; noise-corrupted links; outage probability; single-fold integral; Additive noise; Background noise; Land mobile radio cellular systems; Multiaccess communication; Probability; Quality of service; Rayleigh channels; Shadow mapping; Signal to noise ratio; Wireless communication;
fLanguage
English
Publisher
ieee
Conference_Titel
Wireless Networks, Communications and Mobile Computing, 2005 International Conference on
Print_ISBN
0-7803-9305-8
Type
conf
DOI
10.1109/WIRLES.2005.1549474
Filename
1549474
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