Application-Layer Coding with Intermittent Feedback under Delay and Duty-Cycle Constraints

10/25/2019
by   Siddhartha S. Borkotoky, et al.
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We propose two application-layer coding schemes for delay-constrained point-to-point packet communications over frequency bands with restrictions on the transmitter's maximum duty-cycle. The schemes operate over GF(2) and utilize intermittently available receiver feedback for erasure correction. Simulation results for independent Bernoulli erasure channels, Gilbert-Elliott channels, and Long Range (LoRa) communications demonstrate orders-of-magnitude reductions in the delivery failure rate as compared to feedback-assisted repetition redundancy and a blind coding scheme that does not utilize feedback.

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