Performance Analysis of $n$ -Channel Symmetric FEC-Based Multiple Description Coding for OFDM Networks
Reads0
Chats0
TLDR
The results show that at high SNR, the multiple description encoder does not need to fine-tune the optimization parameters of the system due to the correlated nature of the subcarriers, and FEC-based multiple description coding without temporal coding provides a greater advantage for smaller description sizes.Abstract:
Recently, multiple description source coding has emerged as an attractive framework for robust multimedia transmission over packet erasure channels. In this paper, we mathematically analyze the performance of n-channel symmetric FEC-based multiple description coding for a progressive mode of transmission over orthogonal frequency division multiplexing (OFDM) networks in a frequency-selective slowly-varying Rayleigh faded environment. We derive the expressions for the bounds of the throughput and distortion performance of the system in an explicit closed form, whereas the exact performance is given by an expression in the form of a single integration. Based on this analysis, the performance of the system can be numerically evaluated. Our results show that at high SNR, the multiple description encoder does not need to fine-tune the optimization parameters of the system due to the correlated nature of the subcarriers. It is also shown that, despite the bursty nature of the errors in a slow fading environment, FEC-based multiple description coding without temporal coding provides a greater advantage for smaller description sizes.read more
Citations
More filters
Journal ArticleDOI
Internet of vehicles in big data era
TL;DR: The relationship between IoV and big data in vehicular environment is investigated, mainly on how IoV supports the transmission, storage, computing and computing of the big data, and in returnHow IoV benefits frombig data in terms of IoV characterization, performance evaluation andbig data assisted communication protocol design is investigated.
Journal ArticleDOI
Disruption-Tolerant Networking: A Comprehensive Survey on Recent Developments and Persisting Challenges
TL;DR: The light is shed over the latest advancements in each of the above-mentioned research sectors and highlight pending open issues in Each of them.
Journal ArticleDOI
Energy-Efficiency Oriented Traffic Offloading in Wireless Networks: A Brief Survey and a Learning Approach for Heterogeneous Cellular Networks
TL;DR: An online reinforcement learning framework for the problem of traffic offloading in a stochastic heterogeneous cellular network, where the time-varying traffic in the network can be offloaded to nearby small cells, and a centralized Q-learning with compact state representation algorithm, which is named QC-learning.
Journal ArticleDOI
Meeting Deadlines of Scientific Workflows in Public Clouds with Tasks Replication
TL;DR: Simulation experiments show that the proposed algorithm increases the likelihood of deadlines being met and reduces the total execution time of applications as the budget available for replication increases.
Journal ArticleDOI
A Distributed Multichannel MAC Protocol for Multihop Cognitive Radio Networks
TL;DR: An energy-efficient distributed multichannel MAC protocol for CR networks (MMAC-CR), which significantly improves performance by borrowing the licensed spectrum and protects primary users (PUs) from interference, even in hidden terminal situations.
References
More filters
Book
Digital Communication over Fading Channels
TL;DR: The book gives many numerical illustrations expressed in large collections of system performance curves, allowing the researchers or system designers to perform trade-off studies of the average bit error rate and symbol error rate.
Journal ArticleDOI
A new, fast, and efficient image codec based on set partitioning in hierarchical trees
Amir Said,William A. Pearlman +1 more
TL;DR: The image coding results, calculated from actual file sizes and images reconstructed by the decoding algorithm, are either comparable to or surpass previous results obtained through much more sophisticated and computationally complex methods.
Journal ArticleDOI
Overview of the Scalable Video Coding Extension of the H.264/AVC Standard
TL;DR: An overview of the basic concepts for extending H.264/AVC towards SVC are provided and the basic tools for providing temporal, spatial, and quality scalability are described in detail and experimentally analyzed regarding their efficiency and complexity.
Book
JPEG2000 : image compression fundamentals, standards, and practice
TL;DR: This work has specific applications for those involved in the development of software and hardware solutions for multimedia, internet, and medical imaging applications.