ETRI-Knowledge Sharing Plaform

KOREAN
논문 검색
Type SCI
Year ~ Keyword

Detail

Journal Article Multihop Rate Adaptive Wireless Scalable Video Using Syndrome-Based Partial Decoding
Cited 2 time in scopus Download 0 time Share share facebook twitter linkedin kakaostory
Authors
Yongju Cho, Hayder Radha, Jeongil Seo, Jungwon Kang, Jinwoo Hong
Issue Date
2010-04
Citation
ETRI Journal, v.32, no.2, pp.273-280
ISSN
1225-6463
Publisher
한국전자통신연구원 (ETRI)
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.4218/etrij.10.1409.0072
Project Code
10MR4100, Development of UHD/3D Realistic Video and Interactive View Control Technologies for IPTV, Cha Jihun
Abstract
The overall channel capacity of a multihop wireless path drops progressively over each hop due to the cascading effect of noise and interference. Hence, without optimal rate adaptation, the video quality is expected to degrade significantly at any client located at a far-edge of an ad-hoc network. To overcome this limitation, decoding and forwarding (DF), which fully decodes codewords at each intermediate node, can be employed to provide the best video quality. However, complexity and memory usage for DF are significantly high. Consequently, we propose syndrome-based partial decoding (SPD). In the SPD framework an intermediate node partially decodes a codeword and relays the packet along with its syndromes if the packet is corrupted. We demonstrate the efficacy of the proposed scheme by simulations using actual 802.11b wireless traces. The trace-driven simulations show that the proposed SPD framework, which reduces the overall processing requirements of intermediate nodes, provides reasonably high goodput when compared to simple forwarding and less complexity and memory requirements when compared to DF. Copyright © 2010 ETRI.
KSP Keywords
Ad Hoc Networks, Cascading effect, Channel capacity, Decoding and forwarding, Effect of Noise, Intermediate Nodes, Optimal rate adaptation, Rate adaptive, Scalable Video, Syndrome-based, Trace-driven