On the Interplay between Deadline-Constrained Traffic and the Number of Allowed Retransmissions in Random Access Networks
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View abstract on PubMed
Summary
This summary is machine-generated.This study analyzes wireless networks with retransmissions, finding optimal transmission probabilities and retransmission counts to balance packet drops and throughput for deadline-constrained traffic.
Area Of Science
- Wireless communication networks
- Queueing theory
- Random access protocols
Background
- Wireless devices with buffers transmit deadline-constrained data packets over slotted-ALOHA channels.
- Retransmissions enhance reliability but introduce delays, potentially causing packet drops and buffer growth.
Purpose Of The Study
- Investigate the trade-off between reliability and delays in wireless networks with retransmissions.
- Analyze the impact of packet arrival rate and deadline on performance.
- Determine optimal transmission strategies for deadline-constrained traffic.
Main Methods
- Utilized discrete-time Markov chains for system analysis.
- Studied two scenarios: collision channel and multi-packet reception.
- Conducted performance evaluations based on varying transmit probabilities and retransmission counts.
Main Results
- Identified the trade-off between retransmission count and packet deadline as a function of arrival rate.
- Numerically determined optimal transmission probabilities and retransmission numbers.
- Highlighted the influence of transmit probability and retransmissions on average drop rate and throughput.
Conclusions
- The study provides insights into managing deadline-constrained traffic in wireless networks.
- Optimal parameters can be determined to minimize packet drops and maximize throughput.
- Findings are applicable to networks employing slotted-ALOHA with retransmission mechanisms.
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