Intermediate checksums for improving goodput over error-prone links
| dc.contributor.author | Willig, A. | |
| dc.date.accessioned | 2011-07-05T00:12:15Z | |
| dc.date.available | 2011-07-05T00:12:15Z | |
| dc.date.issued | 2004 | en |
| dc.description.abstract | When a frame transmitted over an error-prone link is hit by bit errors, it is retransmitted entirely, despite the fact that often only a few bits are erroneous. In this paper we propose to not use a single checksum covering all data bits, but multiple checksums covering only parts of a frames data block (a chunk). In case of a retransmission only the chunks with a wrong checksum are retransmitted. We show analytically that for high bit error rates and a time-invariant binary symmetric channel this approach can give significant advantages in terms of goodput over the traditional scheme using only a single checksum per frame. In addition, we propose a simple scheme for adapting the chunk size to the current channel conditions and present first results for this, indicating that for bad channel conditions close-to-optimal goodput is achieved. | en |
| dc.identifier.citation | Willig, A. (2004) Intermediate checksums for improving goodput over error-prone links. Los Angeles, California: Vehicular Technology Conference, VTC-Fall 2004, September. 2123-2128. | en |
| dc.identifier.uri | http://hdl.handle.net/10092/5284 | |
| dc.language.iso | en | |
| dc.publisher | University of Canterbury. Computer Science and Software Engineering | en |
| dc.rights.uri | https://hdl.handle.net/10092/17651 | en |
| dc.subject.anzsrc | Field of Research::10 - Technology::1005 - Communications Technologies::100510 - Wireless Communications | en |
| dc.subject.anzsrc | Fields of Research::40 - Engineering::4006 - Communications engineering::400604 - Network engineering | en |
| dc.title | Intermediate checksums for improving goodput over error-prone links | en |
| dc.type | Conference Contributions - Published |
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