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Modelling Large-Sca...
Modelling Large-Scale CSMA Wireless Networks
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- Voicu, Andra M. (författare)
- Rhein Westfal TH Aachen, Inst Networked Syst, Aachen, Germany.
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- SimiC, Ljiljana (författare)
- Rhein Westfal TH Aachen, Inst Networked Syst, Aachen, Germany.
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- Petrova, Marina (författare)
- KTH,Radio Systems Laboratory (RS Lab)
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Rhein Westfal TH Aachen, Inst Networked Syst, Aachen, Germany Radio Systems Laboratory (RS Lab) (creator_code:org_t)
- Institute of Electrical and Electronics Engineers (IEEE), 2021
- 2021
- Engelska.
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Ingår i: 2021 IEEE Wireless Communications and Networking Conference (WCNC). - : Institute of Electrical and Electronics Engineers (IEEE).
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Increasingly more wireless devices adopt CSMA at the MAC layer, primarily due to the ubiquitous utilization of Wi-Fi, but also due to the development of new standards that implement CSMA variants, like LAA-LTE. It is thus critical to use reliable modelling tools that accurately evaluate the performance of large-scale CSMA deployments, as expected in practice. This paper compares the accuracy and computational efficiency of stochastic geometry modelling (SGM) and our proposed hybrid model, for estimating the MAC-layer throughput and signal-to-interference-and-noise ratio (SINR) of large-scale CSMA wireless deployments. Using ns-3 simulations as the baseline reference, we show that our hybrid model is significantly more accurate and at least one order of magnitude faster to compute than SGM. SGM underestimates the SINR, yet as it neglects the sensing overhead, it usually overestimates the MAC-layer throughput substantially. We thus argue that our hybrid model is preferable to SGM for modelling large-scale CSMA deployments.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Kommunikationssystem (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Communication Systems (hsv//eng)
Nyckelord
- CSMA
- modelling
- MAC
- wireless networks
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)