NOMA Testbed on Wi-Fi

Khorov, Evgeny; Kureev, Aleksey; Levitsky, Ilya

doi:10.1109/pimrc.2018.8580931

Cited by 21 publications

(7 citation statements)

References 3 publications

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“…The BER loss is evaluated with and without SIC [32]. Khorov et al introduced the IEEE 802.11 WiFi standards into NOMA [29]- [31], [35]. Specifically, in [29], they have validated the WiFi network in a slave computer (e.g., field-programmable gate arrays (FPGA) board) rather than a master computer (CPU in the host), which is more efficient than offline experiments.…”

Section: Prior Experimental Validations Of Nomamentioning

confidence: 99%

“…Khorov et al introduced the IEEE 802.11 WiFi standards into NOMA [29]- [31], [35]. Specifically, in [29], they have validated the WiFi network in a slave computer (e.g., field-programmable gate arrays (FPGA) board) rather than a master computer (CPU in the host), which is more efficient than offline experiments. In [30], modifications of the physical (PHY) layer frames and the medium access control (MAC) protocols for downlink transmissions are considered based on IEEE 802.11 standards.…”

Section: Prior Experimental Validations Of Nomamentioning

confidence: 99%

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Over-the-Air Implementation of NOMA: New Experiments and Future Directions

Zhang

Vaezi

2021

IEEE Access

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Non-orthogonal multiple access (NOMA) is widely recognized to increase the number of users and enhance the spectral efficiency in fifth-generation (5G) wireless networks and beyond. NOMA is still in the theoretical analysis and simulation phases and fewer experimental works are reported to date. In this paper, we design and implement NOMA in software-defined radio, and evaluate its performance. This includes the real-time realization of the key components of NOMA, i.e., superposition and successive interference cancellation. The main novelty of this paper is to introduce constructing superimposed signals with varying symbol rates to enlarge the achievable rate region of the experimented NOMA. By applying varying symbol rates, the set of possible transmission rate pairs enlarges and we can reach higher data rates compared to existing modulation and coding schemes (MCS). We also propose an algorithm to efficiently find the rate pairs. Simulations and experiments demonstrate that NOMA with a varying symbol rate not only can reach higher data rates than orthogonal schemes such as time division multiple access, but it can also outperform existing MCS-based methods which have a fixed symbol rate. The experiments also show that there is a noticeable gap between NOMA in theory and practice. In addition to the new NOMA experiments, we review the state-of-the-art in experimental NOMA. We also discuss several directions for future experiments that can help bridge the gap between theory and practice and bring NOMA to practical communication systems.

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Section: Prior Experimental Validations Of Nomamentioning

confidence: 99%

Section: Prior Experimental Validations Of Nomamentioning

confidence: 99%

Over-the-Air Implementation of NOMA: New Experiments and Future Directions

Zhang

Vaezi

2021

IEEE Access

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“…Apart from the previously mentioned technologies, NOMA is also being combined with many other technologies. Particularly, NOMA has been integrated to vehicular communications [189], terrestrial-satellite communications [1], UAVs [112], ambient backscatter communication [190], wireless caching [191]- [193], Wi-Fi networks [194], and so on. Typical challenges are very similar to the ones discussed earlier, and include clustering, power allocation, SIC performance, etc.…”

Section: Noma With Other Technologies and Toolsmentioning

confidence: 99%

Interplay Between NOMA and Other Emerging Technologies: A Survey

Vaezi

Baduge

Liu

et al. 2019

IEEE Trans. Cogn. Commun. Netw.

206

101

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Non-orthogonal multiple access (NOMA) has been widely recognized as a promising way to scale up the number of users, enhance the spectral efficiency, and improve the userfairness in wireless networks, by allowing more than one user to share one wireless resource. NOMA can be flexibly combined with many existing wireless technologies and emerging ones including multiple-input multiple-output (MIMO), massive MIMO, millimeter wave communications, cognitive and cooperative communications, visible light communications, physical layer security, energy harvesting, wireless caching, and so on. Combination of NOMA with these technologies can further increase scalability, spectral efficiency, energy efficiency, and greenness of future communication networks. This paper provides a comprehensive survey of the interplay between NOMA and the above technologies. The emphasis is on how the above techniques can benefit from NOMA and vice versa. Moreover, challenges and future research directions are identified.

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“…is the exponential integral. Because, it is difficult to solve (19) in closed-form, so we can use the following approximation for the exponential integral [24] 20) where…”

Section: Amplify-and-forward Relayingmentioning

confidence: 99%

“…In most of works, the target rates are main factor affecting to outage behavior and they derived expressions to evaluate the performance of the NOMA scheme. Nowadays, power domain based NOMA is widely studied in works, such as [20], [21], [22]. They introduced system adopting orthogonal frequency division multiplexing in the sub-channel transmission of PD-NOMA [23].…”

Section: Introductionmentioning

confidence: 99%

Joint impacts of relaying scheme and wireless power transfer in multiple access of cellular networks

2021

Bulletin EEI

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This paper considers ergodic capacity of energy harvesting (EH) based cellular networks. Such a network employs non-orthogonal multiple access (NOMA) together with relaying scheme to serve two far users. In this system model, relay is facilitated power splitting (PS) protocol to implement energy harvesting (EH). To examine capacity, expressions of signal to noise ratio (SNR) need be computed to achieve capacity. Power allocation factors are different for two users in such system and hence performance gap happens to distinguish requirements for separated users. It can be confirmed that the proposed paradigm exhibits maximal achievable capacity in some scenarios of setting parameters. To confirm exactness of the analytical expressions and show advantages of the proposed EH-NOMA, simulation results are performed in terms of ergodic capacity.

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NOMA Testbed on Wi-Fi

Cited by 21 publications

References 3 publications

Over-the-Air Implementation of NOMA: New Experiments and Future Directions

Over-the-Air Implementation of NOMA: New Experiments and Future Directions

Interplay Between NOMA and Other Emerging Technologies: A Survey

Joint impacts of relaying scheme and wireless power transfer in multiple access of cellular networks

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