Title :
Sum of Ratios of Products for alpha - µ Random Variables in Wireless Multihop Relaying and Multiple Scattering
Author :
Kezhi Wang ; Tian Wang ; Yunfei Chen ; Alouini, Mohamed-Slim
Author_Institution :
Sch. of Eng., Univ. of Warwick, Coventry, UK
Abstract :
The sum of ratios of products of independent 2642 2642α - μ random variables (RVs) is approximated by using the Generalized Gamma ratio approximation (GGRA) with Gamma ratio approximation (GRA) as a special case. The proposed approximation is used to calculate the outage probability of the equal gain combining (EGC) or maximum ratio combining (MRC) receivers for wireless multihop relaying or multiple scattering systems considering interferences. Numerical results show that the newly derived approximation works very well verified by the simulation, while GRA has a slightly worse performance than GGRA when outage probability is below 0.1 but with a more simplified form.
Keywords :
approximation theory; diversity reception; gamma distribution; probability; radio receivers; EGC receivers; GGRA; MRC receivers; alpha-μ random variables; equal gain combining; generalized gamma ratio approximation; maximum ratio combining; multiple scattering systems; outage probability; wireless multihop relaying; Approximation methods; Fading; Random variables; Receivers; Relays; Scattering; Wireless communication;
Conference_Titel :
Vehicular Technology Conference (VTC Fall), 2014 IEEE 80th
Conference_Location :
Vancouver, BC
DOI :
10.1109/VTCFall.2014.6966193
