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Grant-Free Radio Ac...
Grant-Free Radio Access IoT Networks : Scalability Analysis in Coexistence Scenarios
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- Masoudi, Meysam (författare)
- KTH,Radio Systems Laboratory (RS Lab)
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- Azari, Amin, 1988- (författare)
- KTH,Radio Systems Laboratory (RS Lab)
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- Yavuz, E. A. (författare)
- Ericsson AB, Stockholm, Sweden
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- Cavdar, Cicek, 1977- (författare)
- KTH,Radio Systems Laboratory (RS Lab)
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(creator_code:org_t)
- Institute of Electrical and Electronics Engineers Inc. 2018
- 2018
- Engelska.
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Ingår i: IEEE International Conference on Communications. - : Institute of Electrical and Electronics Engineers Inc.. - 9781538631805
- Relaterad länk:
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https://kth.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- IoT networks with grant-free radio access, like SigFox and LoRa, offer low-cost durable communications over unlicensed band. These networks are becoming more and more popular due to the ever-increasing need for ultra durable, in terms of battery lifetime, IoT networks. Most studies evaluate the system performance assuming single radio access technology deployment. In this paper, we study the impact of coexisting competing radio access technologies on the system performance. Considering K technologies, defined by time and frequency activity factors, bandwidth, and power, which share a set of radio resources, we derive closed-form expressions for the successful transmission probability, expected battery lifetime, and experienced delay as a function of distance to the serving access point. Our analytical model, which is validated by simulation results, provides a tool to evaluate the coexistence scenarios and analyze how introduction of a new coexisting technology may degrade the system performance in terms of success probability and battery lifetime. We further investigate solutions in which this destructive effect could be compensated, e.g., by densifying the network to a certain extent and utilizing joint reception.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
Nyckelord
- Battery lifetime
- Interference modelling
- IoT
- LoRa
- LPWA network
- Cellular radio systems
- Electric batteries
- Internet of things
- Radio communication
- Closed-form expression
- Radio access technologies
- Scalability analysis
- Success probabilities
- Transmission probabilities
- Radio transmission
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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