ARQ and HARQ tradeoff.
LTE HARQ is an enhancement to ARQ to include an additional Forward Error Correction (FEC) technique. This correction avoids retransmission of complete packets which is an advantage over ARQ.
We have included more details on HARQ, ARQ and FEC in this section.
Few words on ARQ -
Can you say which one is better ARQ or HARQ?
No, instead its a mathematical tradeoff.
ARQ has one overhead -
HARQ has two overheads -
Crossover is calculated based on following know how.