Citation
Abstract
In space communications, standard link analysis assumes that messages are sent once. For a communication link that uses an error-correction coding scheme, bit-error rate (BER) or frame-error rate (FER), and link margins are common metrics that characterize the quality of a link, and they are used to determine the supportable data rate. With the advent of Automatic Repeat-reQuest (ARQ) protocols, when messages are corrupted during transmission, they can be resent multiple times automatically until they are correctly received and acknowledged. The concept of BER, FER, and link margin cannot be directly applied, and the link analysis approach for ARQ links needs to be reexamined. In this article, we provide the problem formulation and extend the standard link analysis approach to a 1-hop ARQ link (no routing), under the assumption that code-block errors occur independently as in the case of space communications. We develop analytical models that describe the statistical behavior of standard 1-hop ARQ links. By integrating these analytical ARQ protocol models into the standard link analysis, we bypass the need to simulate or emulate the ARQ protocol operations, and generate relevant statistics on effective data rate, effective throughput, latency, and FER.
Details
- Volume
- 42-194
- Published
- August 15, 2013
- Pages
- 1–15
- File Size
- 533.9 KB