Abstract
A recent dynamic increase in demand for wireless multimedia services has greatly accelerated the research on dynamic channel adaptation of high quality video applications. In this paper, we explore a theoretical approach to cross-layer optimization between multimedia and wireless networks by means of a quality criterion termed "visual throughput" for downlink video transmission using a layered coding algorithm. We obtain the optimal loading ratio of orthogonal frequency division multiple access (OFDMA) subcarriers through an optimization problem balancing the tradeoff relationship between inter-cell interference (ICI) and channel throughput. Through numerical link capacity analysis, we show that the upper bounds of the visual throughput gain at the cell boundary is obtained at about 27%.
| Original language | English |
|---|---|
| Article number | 4657460 |
| Pages (from-to) | 1181-1196 |
| Number of pages | 16 |
| Journal | IEEE Transactions on Multimedia |
| Volume | 10 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2008 Oct 1 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Signal Processing
- Media Technology
- Computer Science Applications
- Electrical and Electronic Engineering
Cite this
}
Optimal carrier loading control for the enhancement of visual quality over OFDMA cellular networks. / Jang, Uk; Lee, Hyungkeuk; Lee, Sanghoon.
In: IEEE Transactions on Multimedia, Vol. 10, No. 6, 4657460, 01.10.2008, p. 1181-1196.Research output: Contribution to journal › Article
TY - JOUR
T1 - Optimal carrier loading control for the enhancement of visual quality over OFDMA cellular networks
AU - Jang, Uk
AU - Lee, Hyungkeuk
AU - Lee, Sanghoon
PY - 2008/10/1
Y1 - 2008/10/1
N2 - A recent dynamic increase in demand for wireless multimedia services has greatly accelerated the research on dynamic channel adaptation of high quality video applications. In this paper, we explore a theoretical approach to cross-layer optimization between multimedia and wireless networks by means of a quality criterion termed "visual throughput" for downlink video transmission using a layered coding algorithm. We obtain the optimal loading ratio of orthogonal frequency division multiple access (OFDMA) subcarriers through an optimization problem balancing the tradeoff relationship between inter-cell interference (ICI) and channel throughput. Through numerical link capacity analysis, we show that the upper bounds of the visual throughput gain at the cell boundary is obtained at about 27%.
AB - A recent dynamic increase in demand for wireless multimedia services has greatly accelerated the research on dynamic channel adaptation of high quality video applications. In this paper, we explore a theoretical approach to cross-layer optimization between multimedia and wireless networks by means of a quality criterion termed "visual throughput" for downlink video transmission using a layered coding algorithm. We obtain the optimal loading ratio of orthogonal frequency division multiple access (OFDMA) subcarriers through an optimization problem balancing the tradeoff relationship between inter-cell interference (ICI) and channel throughput. Through numerical link capacity analysis, we show that the upper bounds of the visual throughput gain at the cell boundary is obtained at about 27%.
UR - http://www.scopus.com/inward/record.url?scp=54949092406&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=54949092406&partnerID=8YFLogxK
U2 - 10.1109/TMM.2008.2001380
DO - 10.1109/TMM.2008.2001380
M3 - Article
VL - 10
SP - 1181
EP - 1196
JO - IEEE Transactions on Multimedia
JF - IEEE Transactions on Multimedia
SN - 1520-9210
IS - 6
M1 - 4657460
ER -