Performance evaluation of multiple relays cooperative GBn-ARQ with limited retransmission
Suoping Li, Yongqiang Zhou, Xijuan Yang, Zufang Dou · Journal of Systems Engineering and Electronics · 2015
We investigate the performance of multiple relays cooperative go back n automatic repeat request (MRC-GBn-ARQ) protocol with limited retransmission. An N+2-state Markov transition model is constructed for analyzing arbitrary packet transmission process with limited retransmission. Then the system's steady-state distribution is derived by using the Kolmogorov equations. Further, the mean packet transmission delay and startup delay are obtained respectively; the channel utilization is derived based on discrete-time Geom/G/1 queue model with startup. Also, we get the energy efficiency of the MRC-GBn-ARQ based on energy analytical model. Especially, the presented models are contrary to the classical ARQ protocols of always allowing infinite retransmission, and our analysis of the MRC-GBn-ARQ protocol with limited retransmission provides theoretical results for reducing the system's delay and energy consumption. Finally, analysis is validated through some numerical simulations.