DFEC: Dynamic Forward Error Control for DVB-H
Date Issued
2005
Date
2005
Author(s)
Huang, Wei-Feng
DOI
zh-TW
Abstract
DVB-H is a terrestrial digital TV standard which consumes less power and allows user to move freely when receiving signals. Additional Reed-Solomon codes are also included as an option to cope with higher channel error rate in mobile environment. However, it is designed with fix-valued link layer parameters, such as coding rates and error rates. In mobile networks, channel conditions change from time to time, thus code rates that behave well in one case may become inadequate in another. On the other hand, to implement static and highly protective codes results in low throughput. In this thesis, we propose Dynamic Forward Error Control Scheme (DFEC) that adapts to different channel conditions. Depending on the content carried, DFEC provides suitable error control for channels under various conditions. Simulations show that it offers better throughput, which could translate to power saving for the system.
Subjects
數位電視
DVB-H
FEC
Forward error control
Type
thesis
File(s)![Thumbnail Image]()
Loading...
Name
ntu-94-R92921078-1.pdf
Size
23.31 KB
Format
Adobe PDF
Checksum
(MD5):415c5f7fe76173f943777a836477a995