Compute-and-Forward for Uplink Non-Orthogonal Multiple Access

Cheng, Guo; Aljalai, A. Nasser; Feng, Chen; Zhao, Liqiang; Leung, Victor C. M.; Ward, Rabab K.

doi:10.1109/lwc.2018.2844852

Cited by 10 publications

(4 citation statements)

References 5 publications

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“…An interesting approach to NOMA has been proposed in [15]. The study aims to integrate a simultaneous transmission method (specifically CP&F as we will introduce later) to reduce decoding problems of SIC decoders.…”

Section: B Non-orthogonal Multiple Access (Noma)mentioning

confidence: 99%

The Magic of Superposition: A Survey on Simultaneous Transmission Based Wireless Systems

2022

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In conventional communication systems, any interference between two communicating points is regarded as unwanted noise since it distorts the received signals. On the other hand, allowing simultaneous transmission and intentionally accepting the superposition of signals and even benefiting from it have been considered for a range of wireless applications. As prominent examples, NOMA, joint sourcechannel coding, and the computation codes are designed to exploit this scenario. They also inspired many other fundamental works from network coding to consensus algorithms. Especially, federated learning is an emerging technology that can be applied to distributed machine learning networks by allowing simultaneous transmission. Although various simultaneous transmission applications exist independently in the literature, their main contributions are all based on the same principle; the superposition property. In this survey, we aim to emphasize the connections between these studies and provide a guide for the readers on the wireless communication techniques that benefit from the superposition of signals. We classify the existing literature depending on their purpose and application area and present their contributions. The survey shows that simultaneous transmission can bring scalability, security, low-latency, low-complexity and energy efficiency for certain distributed wireless scenarios which are inevitable with the emerging wireless technologies.

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Section: B Non-orthogonal Multiple Access (Noma)mentioning

confidence: 99%

The Magic of Superposition: A Survey on Simultaneous Transmission Based Wireless Systems

2022

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“…Guo Cheng et. al [16] have suggested the interference cancellation methodology called Successive Interference Cancellation (SIC) in the NOMA system as the de decoding process. However, for the multiple access example, SIC also allows the matched users to have substantially diverse found energy levels.…”

Section: The State Of Art For Spectrum Sensing Modelsmentioning

confidence: 99%

Efficient Utilization of Cooperative Spectrum Sensing (CSS) in Cognitive Radio Network (CRN) Using Non-orthogonal Multiple Access (NOMA)

Balachander

Murugesan

2021

Wireless Pers Commun

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In the recent past, efficient cooperative spectrum sensing and usage are playing a vital role in wireless communication because of the significant progress of mobile devices. There is a recent surge and interest on Non-Orthogonal Multiple Access (NOMA) focused on communication powered by wireless mode. In modern research, more attention has been focused on efficient and accurate Non-Orthogonal Multiple Access (NOMA). NOMA wireless communication is highly adapted with Cognitive Radio Network (CRN) for improving performance. In the existing cognitive radio network, the secondary users could be able to access the idle available spectrum while primary users are engaged. In the traditional CRN, the primary user's frequency bands are sensed as free, the secondary users could be utilized those bands of frequency resources. In this research, the novel methodology is proposed for cooperative spectrum sensing in CRN for 5G wireless communication using NOMA. The higher cooperative spectrum efficiency can be detected in the presence of channel noise. Cooperative spectrum sensing is used to improve the efficient utilization of spectrum. The spectrum bands with license authority primary user are shared by Secondary Users (SU) by simultaneously transmitting information with Primary Users (PU). The cooperative spectrum sensing provides well under the circumstances that the different channel interference to the primary user can be guaranteed to be negligible than an assured thresholding value. The Noisy Channel State Information (CSI) like AWGN and Rayleigh fading channels are considered as wireless transmission mediums for transmitting a signal using Multiple-Input-Multiple-Output (MIMO) NOMA to increase the number of users. The proposed NOMA is fascinated with significant benefits in CRN is an essential wireless communication method for upcoming 5G technology. From experimental results it has been proved that the novel methodology performance is efficient and accurate than existing methodologies by showing graphical representations and tabulated parameters.

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“…By introducing compression operation at receivers, compute-andforward was extended to a more general compression framework, termed generalized compute-compress-and-forward in [22]. The application of compute-and-forward has been investigated for NOMA in [23] and visible light communications in [24]. Inspired by the idea of computing the noisy modulo sum, the work in [25] proposed a unified digital scheme to compute the structured functions over MAC, where the achievable function rate was derived assuming the uniform fading MAC.…”

Section: Introductionmentioning

confidence: 99%