A tight closed-form approximation of the log-normal fading channel capacity

Authors:
Fabien Héliot;Xiaoli Chu;Reza Hoshyar;Rahim Tafazolli
Affiliations:
Centre for Communication Systems Research, Faculty of Electronics & Physical Sciences, University of Surrey, Guildford, UK;Division of Engineering, King's College London, University of London, London, UK;Centre for Communication Systems Research, Faculty of Electronics & Physical Sciences, University of Surrey, Guildford, UK;Centre for Communication Systems Research, Faculty of Electronics & Physical Sciences, University of Surrey, Guildford, UK
Venue:
IEEE Transactions on Wireless Communications
Year:
2009

Citing 4
Cited 1

Capacity of log-normal fading channels

IWCMC '07 Proceedings of the 2007 international conference on Wireless communications and mobile computing
Approximating a Sum of Random Variables with a Lognormal

IEEE Transactions on Wireless Communications
An accurate closed-form approximation of the average probability of error over a log-normal fading channel

IEEE Transactions on Wireless Communications - Part 1
On the MIMO Channel Capacity for the Nakagami- Channel

IEEE Transactions on Information Theory

MGF and high order moment of channel capacity in log-normal fading environment

Proceedings of the 1st International Conference on Wireless Technologies for Humanitarian Relief

Quantified Score

Hi-index	0.01

Visualization

Abstract

The log-normal probability distribution has been commonly used in wireless communications to model the shadowing and, recently, the small-scale fading for indoor ultra-wideband (UWB) communications. In this paper, a tight closed-form approximation of the ergodic capacity over log-normal fading channels is derived. This expression can be easily used to evaluate and compare the ergodic capacities of communication systems operating over log-normal fading channels. We also utilize this expression to show that the capacity of a multiantennas UWB system operating over the IEEE 802.15.3a channel can be improved mainly through receive diversity.