ELI: Empowering LTE with Interference Awareness in Unlicensed Spectrum
| Autor: | Ramanujan K. Sheshadri, Eugene Chai, Sampath Rangarajan, Dimitrios Koutsonikolas, Karthikeyan Sundaresan |
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| Rok vydání: | 2018 |
| Předmět: |
Computer science
business.industry ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS 05 social sciences 050801 communication & media studies 020206 networking & telecommunications Throughput 02 engineering and technology Interference (wave propagation) Spectrum management Base station 0508 media and communications Transmission (telecommunications) 0202 electrical engineering electronic engineering information engineering Overhead (computing) Leverage (statistics) business Communication channel Computer network |
| Zdroj: | ICNP |
| DOI: | 10.1109/icnp.2018.00044 |
| Popis: | The advent of LTE into the unlicensed spectrum has necessitated the understanding of its operational efficiency when sharing spectrum with different radio access technologies. Our study reveals that LTE, owing to its inherent transmission characteristics, suffers significant performance degradation in the presence of interference caused by hidden terminals. This motivates the need for interference-awareness in LTE's channel access in unlicensed spectrum. To address this problem, we propose ELI. ELI's three-pronged solution equips the LTE base station with novel techniques to: (a) accurately detect and measure interference caused by hidden terminals, (b) collect interference statistics from clients across different channels with affordable overhead, and (c) leverage interference-awareness to improve its channel access performance. Our evaluations show that ELI can achieve 1.5-2x throughput gains over baseline schemes. Finally, ELI is LTE-LAA/MulteFire-standard compliant and can be deployed over the existing LTE-LAA implementation without any modifications. |
| Databáze: | OpenAIRE |
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