Title :
Traditional and Reacquisition-Induced Outage Prediction for DSSS and OFDMA Systems on Multipath Fading Channels
Author :
Shepard, Scott ; Schmidt, Douglas
Author_Institution :
Dept. of Electr. Eng., Louisiana Tech Univ., Ruston, LA, USA
fDate :
July 31 2011-Aug. 4 2011
Abstract :
Reacquisition-induced outages continue to increase in importance for advanced systems that employ MIMO antennae, space diversity and adaptive equalizers to mitigate the effects of multipath fading. In addition to the channel model, the fading dynamics plays a key role; hence we provide a novel means of simulating random processes in which we can control the spectra, as well as the probability distributions. We formulate a Markov model from which we derive steady-state predictions of reacquisition-induced outages. The utility of these are illustrated via the simulation of a variety of wireless communication scenarios, which also demonstrate conditions under which reacquisition is the dominant source of outages.
Keywords :
MIMO communication; Markov processes; OFDM modulation; adaptive equalisers; diversity reception; fading channels; frequency division multiple access; interference suppression; multipath channels; random processes; spread spectrum communication; statistical distributions; DSSS; MIMO antennae; Markov model; OFDMA; adaptive equalizers; channel model; fading dynamics; multipath fading channels; probability distributions; random processes; reacquisition-induced outage prediction; space diversity; steady-state predictions; wireless communication; Bit error rate; Channel models; Equations; Fading; Markov processes; Mathematical model; Steady-state;
Conference_Titel :
Computer Communications and Networks (ICCCN), 2011 Proceedings of 20th International Conference on
Conference_Location :
Maui, HI
Print_ISBN :
978-1-4577-0637-0
DOI :
10.1109/ICCCN.2011.6005898