Title :
Ergodic capacity of dual-hop transmissions over composite multipath/shadowing channels
Author :
Wu, Liang ; Niu, K. ; He, Zhaoshui ; Xu, Wei ; Lin, James
Author_Institution :
Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
The ergodic capacity of dual-hop wireless communication systems with amplify-and-forward fixed gain relays over composite multipath/shadowing fading channels is investigated. Closed-form bound based on Jensen´s inequality for the capacity of a dual-hop transmissions system is derived. Numerical results show that the power allocation between the two hops may have effects on system performance.
Keywords :
channel capacity; fading channels; multipath channels; numerical analysis; Jensen inequality; amplify-and-forward fixed gain relays; closed-form bound; composite multipath-shadowing fading channels; dual-hop transmissions; ergodic capacity; numerical results; wireless communication systems;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2009.1770
