Title :
Performance Evaluation for Asymmetric Two-Way AF Relaying in Rician Fading
Author :
Chensi Zhang ; Jianhua Ge ; Jing Li ; Yun Hu
Author_Institution :
State Key Lab. of Integrated Service Networks, Xidian Univ., Xi´an, China
Abstract :
In this letter, the performance of asymmetric two-way amplify-and-forward (AF) relaying network in Rician fading environments with different K-factors is investigated, using a novel method which features slight integral region adjustment. A tight lower bound of the system outage probability has been derived, which is in good agreement with the exact outage probability in high SNR. Based on this tight bound, the diversity and coding gains are achieved providing valuable insights into practical system designs. The deducing method, characterized by high efficiency and low-complexity, can easily be extended to evaluate the system performance over other fading channels. Simulation results are finally presented to examine our results.
Keywords :
Rician channels; amplify and forward communication; diversity reception; probability; Rician fading environments; amplify-and-forward relaying; asymmetric two-way AF relaying; coding gain; diversity gain; fading channels; integral region adjustment; outage probability; Encoding; Lead; Rayleigh channels; Relays; Rician channels; Signal to noise ratio; Rician fading; Two-way relay; amplify-and-forward (AF); asymmetric; outage probability;
Journal_Title :
Wireless Communications Letters, IEEE
DOI :
10.1109/WCL.2013.030613.130050
