Title :
Capacity Analysis of Log-Normal Channels Under Various Adaptive Transmission Schemes
Author :
Pan, Gaofeng ; Ekici, Eylem ; Feng, Quanyuan
Author_Institution :
Sch. of Inf. Sci. & Technol., Southwest Jiaotong Univ., Chengdu, China
fDate :
3/1/2012 12:00:00 AM
Abstract :
In this letter, analytical models to estimate the capacity of log-normal channels are presented for three adaptive transmission schemes: (i) optimal simultaneous power and rate adaptation, (ii) optimal rate adaptation with constant transmit power, and (iii) truncated channel inversion with fixed rate. Closed-form approximations for capacity under these adaptive transmission schemes are derived. Simulation results confirm the accuracy of the proposed analytical models.
Keywords :
approximation theory; channel capacity; channel estimation; wireless channels; adaptive transmission scheme; closed-form approximation; constant transmit power; log-normal channel capacity estimation; optimal rate adaptation; optimal simultaneous power; truncated channel inversion; wireless channel; Adaptation models; Analytical models; Approximation methods; Channel capacity; Fading; Signal to noise ratio; Wireless communication; Capacity analysis; adaptive transmission scheme; log-normal channel;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2011.122211.112187
