Enabling Quality-Driven Scalable Video Transmission over Multi-User NOMA System

Jiang, Xiaoda; Lu, Hancheng; Chen, Chang Wen

doi:10.1109/infocom.2018.8486377

Cited by 13 publications

(9 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Take into account a single-cell communication network with a K number of users, one relay, and a single BTS. All the K users are multiplexed using different codes, the number of antennas equipped by K users is denoted Nr, the number of antennas at BTS is given by Nt, and the relay is prepared with Nrr antennas at the receiver along with Ntr antennas at the transmitter [5,[17][18][19]. At the relay, the delay and forward (DF) protocol will be used.…”

Section: Schematic Model Of Novel Approachmentioning

confidence: 99%

Evaluating the Efficiency of Non-Orthogonal MU-MIMO Methods in Smart Cities Technologies & 5G Communication

Dutta¹,

Ramyasree²,

Sridhar³

et al. 2022

Sustainability

View full text Add to dashboard Cite

Many cutting-edge technologies, such as MIMO, cognitive radio, multi-carrier modulation, and network coding, have been proposed for wireless communication to satisfy needs for a higher data rate in the upcoming time, leading to improved quality of service (QoS) regardless of the weather. Orthogonal and non-orthogonal multiple access techniques are two categories into which multiple access technologies can be subdivided. Large networking with effective implementation of wireless devices is supported by non-orthogonal multiple access techniques. Massive NOMA has been implemented to advance access efficiency by permitting several users to share a similar spectrum. Because of the robust co-channel interference between mobile users presented by NOMA, it offers important tasks for system model and resources management. In this study, two additional sets of demanding codes are explored. Multi-user shared access methods and expanded multi-user shared access (EMUSA) methods are both employed. In the MUSA technique, an algorithm is used for the allocation of resources to achieve minimum intercorrelation to the maximum extent in 5G networks. A novel idea proposed in this paper is to create complex codes starting from PN codes (i.e., ePN), thereby achieving promising results in the overall system performance. The first part of this paper describes the fundamental principles of MUSA, and in the next part the main idea of the proposed technique will be studied in detail. Using Monte-Carlo MATLAB simulation, the performance of the suggested approach is assessed in terms of BER vs. SNR. The efficiency of the proposed approach is evaluated in various settings, and the outcomes are contrasted with those of the traditional CDMA technique, using parameters, such as the number of active users and antennas at the receiver.

show abstract

Section: Schematic Model Of Novel Approachmentioning

confidence: 99%

Evaluating the Efficiency of Non-Orthogonal MU-MIMO Methods in Smart Cities Technologies & 5G Communication

Dutta¹,

Ramyasree²,

Sridhar³

et al. 2022

Sustainability

View full text Add to dashboard Cite

show abstract

“…When µ i,j = 1, S BL,i and S EL,j are simultaneously transmitted via SC, which brings transmission distortion as expressed in Eq. (5). Hence, the optimization problem can be formulated as:…”

Section: A Problem Statement and Formulationmentioning

confidence: 99%

“…Considering that video traffic will be dominant in growing mobile traffic [4], it is desirable to exploit NOMA for high-volume video services. For video unicast, it has shown that NOMA can provide improved visual satisfaction compared with orthogonal multiple access (OMA) [5]. Meanwhile, multicast is an effective way to enhance bandwidth efficiency for high-volume video services.…”

Section: Introductionmentioning

confidence: 99%

Receiver-driven Video Multicast over NOMA Systems in Heterogeneous Environments

Jiang

Chen

et al. 2019

IEEE INFOCOM 2019 - IEEE Conference on Computer Communications

Self Cite

View full text Add to dashboard Cite

Non-orthogonal multiple access (NOMA) has shown potential for scalable multicast of video data. However, one key drawback for NOMA-based video multicast is the limited number of layers allowed by the embedded successive interference cancellation algorithm, failing to meet satisfaction of heterogeneous receivers. We propose a novel receiver-driven superposed video multicast (Supcast) scheme by integrating Softcast, an analog-like transmission scheme, into the NOMAbased system to achieve high bandwidth efficiency as well as gradual decoding quality proportional to channel conditions at receivers. Although Softcast allows gradual performance by directly transmitting power-scaled transformation coefficients of frames, it suffers performance degradation due to discarding coefficients under insufficient bandwidth and its power allocation strategy cannot be directly applied in NOMA due to interference. In Supcast, coefficients are grouped into chunks, which are basic units for power allocation and superposition scheduling. By bisecting chunks into base-layer chunks and enhanced-layer chunks, the joint power allocation and chunk scheduling is formulated as a distortion minimization problem. A two-stage power allocation strategy and a near-optimal low-complexity algorithm for chunk scheduling based on the matching theory are proposed. Simulation results have shown the advantage of Supcast against Softcast as well as the reference scheme in NOMA under various practical scenarios.

show abstract

“…However, these studies only focus on the connectivity and throughput for data transmission, which can not satisfy the QoS requirement of video uplinking in IoT. When it comes to video transmission in NOMA systems, a multi-user video unicast scheme is proposed for NOMA system in [10], while Zhang et al present a scalable video multicast scheme to improve the quality of experience (QoE) of all broadcast users with NOMA [11]. In [12], the authors propose a spatial modulation (SM) and NOMA integrated system for multi-user video transmission.…”

Section: Introductionmentioning

confidence: 99%

QoS-Driven Video Uplinking in NOMA-Based IoT

Zhang

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

In recent years, with the explosive growth of visual sensors and a large number of related video applications in Internet of Things (IoT), massive video data is generated by IoT devices. Since the volume of video data is far greater than traditional data in IoT, it is challenging to ensure high Quality of Service (QoS) for video uplinking in IoT. To address this challenge, we integrate non-orthogonal multiple access (NOMA) and scalable video coding (SVC) in IoT. To improve the video quality, we formulate a power allocation problem to maximize the average QoS in the proposed integrated system. Due to that the problem is non-convex, we transform it into a monotonic problem based on its hidden monotonicity. Then a power allocation algorithm based on polyblock outer approximation is proposed to solve the problem effectively. Finally, simulation results demonstrate that the proposed algorithm outperforms existing OMA and NOMA based schemes for video uplinking in IoT in terms of QoS and energy efficiency.

show abstract

Enabling Quality-Driven Scalable Video Transmission over Multi-User NOMA System

Cited by 13 publications

References 18 publications

Evaluating the Efficiency of Non-Orthogonal MU-MIMO Methods in Smart Cities Technologies & 5G Communication

Evaluating the Efficiency of Non-Orthogonal MU-MIMO Methods in Smart Cities Technologies & 5G Communication

Receiver-driven Video Multicast over NOMA Systems in Heterogeneous Environments

QoS-Driven Video Uplinking in NOMA-Based IoT

Contact Info

Product

Resources

About