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IEEE/ICACT20260355 Question.7 Questioner: yangyn@dsp.ac.cn 2026-02-05 오후 9:10:45	IEEE/ICACT20260355 Answer.7 Answer by Auhor xueyy@dsp.ac.cn 2026-02-05 오후 9:10:45
What are the two main problems that ARRCT aims to address?	ARRCT aims to address tSecond, using a fixed redundancy with Raptor coding tends to mismatch the time-varying network conditions: too little redundancy can cause decoding failures, while too much redundancy introduces unnecessary bandwidth and delay overhead. ARRCT therefore uses feedback on decoding outcome and delivery statistics to adapt redundancy and balance reliability against overhead.o main problems. First, in random-routing networks (e.g., KRRD), path unpredictability can lead to high loss and long-tail latency / prolonged session completion time.

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