The Approximate Asep of the Mobile-Relaybased M2m System
Lingwei Xu, Hao Zhang, Tingting Lu, Xing Liu, Thomas Aaron Gulliver · 2015
Based on fixed-gain amplify-and-forward (FAF) relaying scheme, the approximate average symbol error probability (ASEP) of the mobile-relay-based mobile-to-mobile (M2M) system over N-Nakagami fading channels is investigated in this paper. By the moment generating function (MGF) method, a generalized expression for the approximate ASEP is derived for various modulations. Then the ASEP performance under different conditions is evaluated through numerical simulations. The numerical simulation results coincide with the theoretical results well, and the accuracy of the theoretical results is verified. The simulation results showed that the fading coefficient, the number of cascaded components, the relative geometrical gain, and the power-allocation parameter have an important influence on the ASEP performance.