Non-Orthogonal Unicast and Broadcast Transmission via Joint Beamforming and LDM in Cellular Networks

Zhao, Junlin; Gündüz, Deniz; Simeone, Osvaldo; Gómez-Barquero, David

doi:10.1109/glocom.2016.7842028

Cited by 30 publications

(33 citation statements)

References 14 publications

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“…where n k ∼ CN(0, δ 2 1 ) is the addition noise caused by the ID. By using the layered division multiplexing, the common and private signal can be transmitted simultaneously [15]. At receiver, the user can decode the signals with successive interference cancellation.…”

Section: System Description and Problem Formulationmentioning

confidence: 99%

“…which means that searching the root for the nonlinear equation T (q) = 0 is equivalent to solve (15). It can be found that T (q) is a strictly decreasing and convex function with respect to q, where T (q) > 0 with q → −∞ and T (q) < 0 with q → ∞.…”

Section: B Optimizing Digital Precoding and Power Splitting Ratiomentioning

confidence: 99%

“…the number of antennas in different subarrays may be different, it is also suitable in our scheme 2. In general, the multicast message have a higher priority because it is sent to multiple users[15]. Therefore, we assume that the common signal is first decoded.…”

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confidence: 99%

See 2 more Smart Citations

Hybrid Precoding Design for SWIPT Joint Multicast-Unicast mmWave System with Subarray Structure

Hao

Chu

Zhou

et al. 2019

ICC 2019 - 2019 IEEE International Conference on Communications (ICC)

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In this paper, we investigate the hybrid precoding design for joint multicast-unicast millimeter wave (mmWave) system, where the simultaneous wireless information and power transform is considered at receivers. The subarray-based sparse radio frequency chain structure is considered at base station (BS). Then, we formulate a joint hybrid analog/digital precoding and power splitting ratio optimization problem to maximize the energy efficiency of the system, while the maximum transmit power at BS and minimum harvested energy at receivers are considered. Due to the difficulty in solving the formulated problem, we first design the codebook-based analog precoding approach and then, we only need to jointly optimize the digital precoding and power splitting ratio. Next, we equivalently transform the fractional objective function of the optimization problem into a subtractive form one and propose a two-loop iterative algorithm to solve it. For the outer loop, the classic Bi-section iterative algorithm is applied. For the inner loop, we transform the formulated problem into a convex one by successive convex approximation techniques, which is solved by a proposed iterative algorithm. Finally, simulation results are provided to show the performance of the proposed algorithm.

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Section: System Description and Problem Formulationmentioning

confidence: 99%

Section: B Optimizing Digital Precoding and Power Splitting Ratiomentioning

confidence: 99%

See 1 more Smart Citation

Hybrid Precoding Design for SWIPT Joint Multicast-Unicast mmWave System with Subarray Structure

Hao

Chu

Zhou

et al. 2019

ICC 2019 - 2019 IEEE International Conference on Communications (ICC)

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“…More advanced solutions might further allow the overlay of broad-, multi-and unicast communications through nonorthogonal multiplexing/multiple access (NOMA), allowing for larger area broad-and multicast coverage, while supplying unicast traffic over the same resources [19]- [21]. If combined with time division multiplexing, such solutions may use NOMA to provide user data to users with high signal to noise ratio during time slots allocated for broadcast, without affecting broadcast quality -and thus allow effectively increasing network utilization.…”

Section: B Broad-and Multicast Distributionmentioning

confidence: 99%

Millimeter Wave Hybrid Photonic Wireless Links - Also for Broadcast?

Rommel

Morales

Konstantinou

et al. 2018

2018 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB)

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“…On the one hand, NOUM has been envisaged as a recourse for improving spectral efficiency due to its capability of providing concurrent services in the same radio frequency resources. Specifically, NOUM has encountered outstanding solutions through layered-division-multiplexing (LDM) [1] and rate-splitting (RS) [2]. On the other hand, usage of the underexploited millimeter-wave spectrum is a promising solution to alleviate the scarcity of radio resources.…”

Section: Introductionmentioning

confidence: 99%

Sequential Parametric Optimization for Rate-Splitting Precoding in Non-Orthogonal Unicast and Multicast Transmissions

Abanto-Leon¹,

Hollick²,

Clerckx³

et al. 2022

Preprint

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This paper investigates rate-splitting (RS) precoding for non-orthogonal unicast and multicast (NOUM) transmissions using fully-digital and hybrid precoders. We study the nonconvex weighted sum-rate (WSR) maximization problem subject to a multicast requirement. We propose FALCON, an approach based on sequential parametric optimization, to solve the aforementioned problem. We show that FALCON converges to a local optimum without requiring judicious selection of an initial feasible point. Besides, we show through simulations that by leveraging RS, hybrid precoders can attain nearly the same performance as their fully-digital counterparts under certain specific settings.

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Non-Orthogonal Unicast and Broadcast Transmission via Joint Beamforming and LDM in Cellular Networks

Cited by 30 publications

References 14 publications

Hybrid Precoding Design for SWIPT Joint Multicast-Unicast mmWave System with Subarray Structure

Hybrid Precoding Design for SWIPT Joint Multicast-Unicast mmWave System with Subarray Structure

Millimeter Wave Hybrid Photonic Wireless Links - Also for Broadcast?

Sequential Parametric Optimization for Rate-Splitting Precoding in Non-Orthogonal Unicast and Multicast Transmissions

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