Intra-Network Interference Robustness: An Empirical Evaluation of IEEE 802.15.4-2015 SUN-OFDM
| Autor: | Dries Van Leemput, Robbe Elsas, Eli De Poorter, Glenn Daneels, Adnan Shahid, Jeroen Famaey, Jeroen Hoebeke |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
IEEE 802.15.4
Signal-to-interference ratio IoT Technology and Engineering Computer Networks and Communications Computer science Orthogonal frequency-division multiplexing interference lcsh:TK7800-8360 Throughput 02 engineering and technology smart utility networks modulation diversity Scheduling (computing) Robustness (computer science) PHY TSCH 0202 electrical engineering electronic engineering information engineering Wireless Electrical and Electronic Engineering IEEE 802.15 business.industry ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS lcsh:Electronics Physical layer 020206 networking & telecommunications spatial re-use Hardware and Architecture Control and Systems Engineering Modulation Signal Processing SUN-OFDM 020201 artificial intelligence & image processing business Computer network Communication channel |
| Zdroj: | Electronics, Vol 9, Iss 1691, p 1691 (2020) Electronics Volume 9 Issue 10 ELECTRONICS |
| ISSN: | 2079-9292 |
| Popis: | While IEEE 802.15.4 and its Time Slotted Channel Hopping (TSCH) medium access mode were developed as a wireless substitute for reliable process monitoring in industrial environments, most deployments use a single/static physical layer (PHY) configuration. Instead of limiting all links to the throughput and reliability of a single Modulation and Coding Scheme (MCS), you can dynamically re-configure the PHY of link endpoints according to the context. However, such modulation diversity causes links to coincide in time/frequency space, resulting in poor reliability if left unchecked. Nonetheless, to some level, intentional spatial overlap improves resource efficiency while partially preserving the benefits of modulation diversity. Hence, we measured the mutual interference robustness of certain Smart Utility Network (SUN) Orthogonal Frequency Division Multiplexing (OFDM) configurations, as a first step towards combining spatial re-use and modulation diversity. This paper discusses the packet reception performance of those PHY configurations in terms of Signal to Interference Ratio (SIR) and time-overlap percentage between interference and targeted parts of useful transmissions. In summary, we found SUN-OFDM O3 MCS1 and O4 MCS2 performed best. Consequently, one should consider them when developing TSCH scheduling mechanisms in the search for resource efficient ubiquitous connectivity through modulation diversity and spatial re-use. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|