Abstract
To realize an ultra low-latency mobile network that has a quite short end-to-end latency, we present an adaptive error recovery scheme. In the proposed scheme, a combination of Selective Repeat (SR) and Stop-and-Wait (SW) ARQ (Automatic Repeat reQuest), is adopted at the link layer. In addition, an adaptive FEC (Forward Error Correction) scheme that has a different redundancy rate depending on the number of retransmissions is adopted at the physical layer. Theoretic analyses show that the proposed SR-SW-ARQ has a shorter transmission latency than that of the conventional SW-ARQ protocol when the error rate is sufficiently low. Simulations of the proposed adaptive SR-SW-ARQ/FEC scheme were conducted based on the flat Rayleigh channel. The simulation results verify that the proposed scheme provides better performance in terms of a normalized throughput at the link layer and less transmission latency compared to a scheme that has a static redundancy FEC scheme and SR-SW-ARQ protocol.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
