期刊名称：International Journal of Wireless & Mobile Networks
印刷版ISSN：0975-4679
电子版ISSN：0975-3834
出版年度：2013
卷号：5
期号：1
DOI：10.5121/ijwmn.2013.5111
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：In this paper, we study the basic diversity combining techniques and investigate analytically-derived closed-form expressions for the capacities per unit bandwidth for Rayleigh fading channels with equal gain combining (EGC) diversity. We consider differe nt channel performance adaptation policies such as: power and rate adaptation with constant transmit power, channel inversion with fixed rate, and truncated channel inversion. A simulation of these schemes was carried out under ideal communication conditions and their performance compared. Results obtained show that channel inversion policies gave the highest capacity over other adaptation policies (with EGC diversity) while the constant transmit power policy yielded the lowest capacity. Furthermore, the truncated channel inversion policy outperformed other policies, while the constant power policy had the lowest capacity, compared to other policies
