Compressive Spinal Codes

Li, Ying; Wu, Jun; Tan, Bin; Wang, Min; Zhang, Wei

doi:10.1109/tvt.2019.2947028

Cited by 8 publications

(2 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this case, users whose channel quality is below the critical point receive unwatchable video frames. Some solutions have addressed the cliff effect associated exclusively with channel coding, such as hybrid automatic repeat request and rateless coding schemes [14]- [18]. They adapt the number of transmissions to changing channel conditions for error prevention.…”

Section: B Critical Issues On Qualitymentioning

confidence: 99%

Soft Delivery: Survey on A New Paradigm for Wireless and Mobile Multimedia Streaming

Fujihashi¹,

Koike‐Akino²,

Watanabe³

2021

Preprint

View full text Add to dashboard Cite

The increasing demand for video streaming services is the key driver of modern wireless and mobile communications. For robust and high-quality delivery of video content over wireless and mobile networks, the main challenge is sending image and video signals to single and multiple users over unstable and diverse channel environments. To this end, many studies have designed digital-based video delivery schemes, which mainly consist of a sequence of digital-based coding and transmission schemes. Although digital-based schemes perform well when the channel characteristics are known in advance, significant quality degradation, known as cliff and leveling effects, often occurs owing to the fluctuating channel characteristics. To prevent cliff and leveling effects irrespective of the channel characteristics of each user, a new paradigm for wireless and mobile video streaming has been proposed. Soft delivery schemes skip the digital operations of quantization and entropy and channel coding while directly mapping the power-assigned frequency-domain coefficients onto the transmission symbols. This modification is based on the fact that the pixel distortion due to communication noise is proportional to the magnitude of the noise, resulting in graceful quality improvement, wherein quality is improved gradually, according to the wireless channel quality without any cliff and leveling effects. Herein, we present a comprehensive summary of soft delivery schemes. First, we provide a brief introduction on wireless and mobile video streaming. Second, we discuss the issues associated with conventional digital-based video delivery schemes. Third, an overview of soft delivery is presented, and then the state of the art in soft delivery is summarized by considering energy compaction, power allocation, bandwidth utilization, and packet loss resilience. Finally, an excursion on the extensions needed for immersive content and future research directions are provided.

show abstract

Section: B Critical Issues On Qualitymentioning

confidence: 99%

Soft Delivery: Survey on A New Paradigm for Wireless and Mobile Multimedia Streaming

Fujihashi¹,

Koike‐Akino²,

Watanabe³

2021

Preprint

View full text Add to dashboard Cite

show abstract

“…For Spinal codes, the uniform puncturing based transmission scheme is proposed in [16], where the whole pass is divided into many sub-passes and the transmitter only transmits a single symbol in a sub-pass to obtain a finergrained rate set. In [17], the uniform puncturing is improved and adopted in S-Spinal codes to achieve finer granularity for compression purposes. As the uniform puncturing based transmission scheme is only a general puncturing method for rateless codes, transmission scheme that exploits the unique properties of Spinal codes are expected to be designed [1].…”

Section: Introductionmentioning

confidence: 99%

New Upper Bounds on the Error Probability under ML Decoding for Spinal Codes and the Joint Transmission-Decoding System Design

Li¹,

Wu²,

Jiao³

et al. 2021

Preprint

View full text Add to dashboard Cite

Spinal codes are known to be capacity achieving over both the additive white Gaussian noise (AWGN) channel and the binary symmetric channel (BSC). Over wireless channels, Spinal encoding can also be regarded as an adaptive-codedmodulation (ACM) technique due to its rateless property, which fits it with mobile communications. Due to lack of tight analysis on error probability of Spinal codes, optimization of transmission scheme using Spinal codes has not been fully explored. In this work, we firstly derive new tight upper bounds of the frame error rate (FER) of Spinal codes for both the AWGN channel and the BSC in the finite block-length (FBL) regime. Based on the derived upper bounds, we then design the optimal transmission scheme. Specifically, we formulate a rate maximization problem as a nonlinear integer programming problem, and solve it by an iterative algorithm for its dual problem. As the optimal solution exhibits an incremental-tail-transmission pattern, we propose an improved transmission scheme for Spinal codes. Moreover, we develop a bubble decoding with memory (BD-M) algorithm to reduce the decoding time complexity without loss of rate performance. The improved transmission scheme at the transmitter and the BD-M algorithm at the receiver jointly constitute an "encoding-decoding" system of Spinal codes. Simulation results demonstrate that it can improve both the rate performance and the decoding throughput of Spinal codes.

show abstract

Analysis and Optimization of the HARQ-Based Spinal Coded Timely Status Update System

Meng

et al. 2022

IEEE Trans. Commun.

View full text Add to dashboard Cite

Compressive Spinal Codes

Cited by 8 publications

References 27 publications

Soft Delivery: Survey on A New Paradigm for Wireless and Mobile Multimedia Streaming

Soft Delivery: Survey on A New Paradigm for Wireless and Mobile Multimedia Streaming

New Upper Bounds on the Error Probability under ML Decoding for Spinal Codes and the Joint Transmission-Decoding System Design

Analysis and Optimization of the HARQ-Based Spinal Coded Timely Status Update System

Contact Info

Product

Resources

About