Incoherent DPSK Diversity Reception in Doubly Selective Channels Based on Virtual Trajectories

Pena-Campos, F.; Parra-Michel, R.; Kontorovitch, V.Ya.

doi:10.1109/tvt.2018.2821173

Cited by 10 publications

(7 citation statements)

References 14 publications

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“…Partial-NOMA can also serve users that NOMA cannot. Different from the proposal made in this chapter, NOMA users in [14] cannot support high transmission rate requirements.…”

Section: A Brief Overview About Sic Algorithms In Noma Systemsmentioning

confidence: 69%

“…• Generalizations of CR-NOMA for MIMO Doubly Selective channels and Massive MIMO. It seems, that besides the SIC is a pre-processor block before the main receiver unit (the latter is already well known [14,15,30]), for applications at MIMO over Doubly Selective channels, the before mentioned algorithms might require significant modifications.…”

Section: Discussionmentioning

confidence: 99%

“…Notice, that almost every proposed SIC technique in the literature strongly depends on the CSI. However, as it was stated before, the usage of the Channel State Information (CSI) or its modifications [14][15][16] is hardly possible, due to the Double Selective channels. Contrary to the previously published papers, new findings reported in this chapter consider the SIC impairments mitigation related to double selectivity troubles.…”

Section: A Brief Overview About Sic Algorithms In Noma Systemsmentioning

confidence: 99%

See 2 more Smart Citations

NOMA Transmission Systems: Overview of SIC Design and New Findings

Estrello¹,

Ramos-Alarcon²,

Kontorovich³

2022

Multiplexing - Recent Advances and Novel Applications

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Non-Orthogonal Multiple Access (NOMA) has been recently proposed as a good alternative to meet 5G and beyond requirements in terms of high spectral efficiency, massive connectivity, and low latency. It has been demonstrated that the use of NOMA in downlink has superior performance in terms of throughput, whereas the use in uplink outperforms OMA techniques in terms of fairness. A distinctive feature of NOMA is the presence of excessive multiple-access interference due to the case of usage of power domain to multiplex signals, thus the functional implementation of NOMA implies Successive Interference Cancelation (SIC) to combat this interference. Therefore, SIC design becomes the main point in the effectiveness of NOMA systems. On the other hand, hybrid schemes, NOMA/OMA, have been recently proposed to reduce the drawbacks of pure NOMA systems. However, in these schemes, it becomes necessary to distinguish NOMA and OMA users. Cognitive Radio techniques turn to be a good option to effectively separate NOMA/OMA users as well as to distinguish NOMA users. In this chapter, a brief overview of NOMA techniques related to Cognitive Radio technology (CR-NOMA) and SIC design reported in the literature is presented. Also, new findings about NOMA/OMA users’ recognition are described.

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“…Partial-NOMA can also serve users that NOMA cannot. Different from the proposal made in this chapter, NOMA users in [14] cannot support high transmission rate requirements.…”

Section: A Brief Overview About Sic Algorithms In Noma Systemsmentioning

confidence: 69%

Section: Discussionmentioning

confidence: 99%

Section: A Brief Overview About Sic Algorithms In Noma Systemsmentioning

confidence: 99%

See 1 more Smart Citation

NOMA Transmission Systems: Overview of SIC Design and New Findings

Estrello¹,

Ramos-Alarcon²,

Kontorovich³

2022

Multiplexing - Recent Advances and Novel Applications

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show abstract

“…Therefore, the main part of the CR-NOMA proposals cited above might be hardly possible to adjust to Doubly Selective channels, for the same reasons that were stated and discussed in [13], [14], so the SIC design approach needs to be certainly modified. The principles and possible realizations for this SIC will be addressed in the following material.…”

Section: Introductionmentioning

confidence: 99%

Comments on SIC design for SISO NOMA Systems over Doubly Selective Channels.

Kontorovich¹

2022

Preprint

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Non-orthogonal multiple access principle applied in power domain (power-domain NOMA) enhances spectrum efficiency and connectivity of mobile communication systems through sharing between Orthogonal Multiple Access (OMA) and other multiple users. It is the almost main current trend for research and standards for 5G and beyond. Spectrum sharing generates multi-users interference (Multiple Access Interference, MAI) which destroys orthogonality in OMA systems. Meanwhile the so-called Successive Interference Cancellation (SIC) techniques are used to suppress MAI and the Cognitive Radio (CR) principle (CR-NOMA) for decoding order for multiple users inspired effective SIC algorithms. The CR-NOMA principle is applied in the present material as well, but with significant changes for SIC design as for Doubly Selective channels. Due to the above reasons, two original SIC design methods are proposed hereafter following the CR-NOMA principle. Regarding to it the OMA signal (primary user) is decoded first using a Chaos-based quasi-optimum Extended Kalman Filter (EKF). The set of “secondary users” (multiusers) are proposed to be decoded secondly by the following two different methods: - Chaos-based EKF filters or , - Sequential m hypothesis testing. The proposed approach for SIC design is rather simple, fast and accurate for practical implementation.

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“…It is worth mentioning that none of these references take into consideration DSC. In [3] a noncoherent receiver is proposed, considering only the SISO case.…”

Section: Introductionmentioning

confidence: 99%

Invariant Incoherent MIMO Reception Over Doubly Selective Channels

et al. 2021

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Nowadays, there is a need for wireless communications to operate over a variety of scenarios, including high mobility multiple-input multiple-output (MIMO) applications, that bring along a challenging problem. In channels where Doppler spread and delay spread are high, complexity of coherent detectors and pilot overhead are both raised. This work proposes a non-coherent reception technique, easily scalable to any number of antennas for the MIMO case, using simple coding and decoding structures which take advantage of channel diversity addition in three domains: time, frequency and space, by using virtual trajectories along with space time block-coding. Coarse analytics on the system performance in terms of the bit error rate are computed using Chernoff Boundaries as a function of the channel diversity and the order of the differential modulation, validating the efficiency of the proposed receiver.INDEX TERMS Differential modulation, doubly selective channels, invariance, MIMO, non-coherent receivers, space-time coding.

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Incoherent DPSK Diversity Reception in Doubly Selective Channels Based on Virtual Trajectories

Cited by 10 publications

References 14 publications

NOMA Transmission Systems: Overview of SIC Design and New Findings

NOMA Transmission Systems: Overview of SIC Design and New Findings

Comments on SIC design for SISO NOMA Systems over Doubly Selective Channels.

Invariant Incoherent MIMO Reception Over Doubly Selective Channels

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