Low-latency Sliding-window Recoding

Research output: Contribution to book/conference proceedings/anthology/reportConference contributionContributedpeer-review

Abstract

In wireless multi-hop and multi-path computer networks, such as the ones that potentially emerge with Internet of Things (IoT) deployments, channel coding has become a tried and tested solution to handle packet losses. Random Linear Network Coding (RLNC) is one of such block coding techniques, which also provides the unique feature of recoding already coded symbols on intermediate nodes, thereby increasing the general throughput of the network. However, the computation overhead of decoding on the receiver device counteracts the much desired low-latency requirements of various fifth generation (5G) use cases. Sliding-window RLNC is a technique, which can minimize such overheads. Nonetheless, recoding over a sliding window destroys the low-latency decodable properties of the scheme. In this paper we present a low-latency recoding technique that balances packet forwarding and recoding on the intermediate nodes in way that potentially preserves the sliding window characteristics. Our simulation results show that the performance of the proposed recoding algorithm achieves a two factor improvement in latency and losses, as well as a more than three times gain in throughput.

Details

Original languageEnglish
Title of host publication2021 IEEE 93rd Vehicular Technology Conference, VTC 2021-Spring - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (electronic)9781728189642
Publication statusPublished - Apr 2021
Peer-reviewedYes

Publication series

SeriesIEEE Vehicular Technology Conference
Volume2021-April
ISSN1550-2252

Conference

Title93rd IEEE Vehicular Technology Conference, VTC 2021-Spring
Duration25 - 28 April 2021
CityVirtual, Online

External IDs

Scopus 85112453154

Keywords

Keywords

  • delay, multi-hop, random linear network coding, recoding, RLNC, sliding window