Prototyping and Experimental Study of Non-Orthogonal Multiple Access in Wi-Fi Networks
| Autor: | Ilya Levitsky, Evgeny Khorov, Aleksey Kureev, Ian F. Akyildiz |
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| Rok vydání: | 2020 |
| Předmět: |
Computer Networks and Communications
business.industry Computer science Data stream mining ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS 020206 networking & telecommunications 02 engineering and technology Non orthogonal Spectral efficiency medicine.disease Multiplexing Backward compatibility Noma Hardware and Architecture 0202 electrical engineering electronic engineering information engineering medicine Antenna (radio) business Software Information Systems Computer network Communication channel |
| Zdroj: | IEEE Network. 34:210-217 |
| ISSN: | 1558-156X 0890-8044 |
| Popis: | NOMA is a promising way to increase spectral efficiency recently discussed in the IEEE 802.11 Working Group that develops WiFi standards. NOMA can be very beneficial in a WiFi network where the qualities of the channel between the access point and associated stations are significantly different. In such scenarios, NOMA allows the access point to transmit several data streams to various stations in parallel using one antenna and the same time-frequency resources. This article presents and evaluates the first-ever prototype of a WiFi device supporting NOMA, implemented in a software-defined radio platform. The prototype is backward compatible with legacy WiFi versions. Specifically, one of the multiplexed streams may be received by a legacy station not supporting NOMA. This feature is favorable for heterogeneous deployments with various generations of WiFi devices. This article provides a detailed description of the prototype as well as experimental results showing from 37 percent to 100 percent gain achieved by including NOMA in the future 802.11 standards. |
| Databáze: | OpenAIRE |
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