Optimal carrier loading control for the enhancement of visual quality over OFDMA cellular networks

Uk Jang; Hyungkeuk Lee; Sanghoon Lee

doi:10.1109/TMM.2008.2001380

Optimal carrier loading control for the enhancement of visual quality over OFDMA cellular networks

Uk Jang, Hyungkeuk Lee, Sanghoon Lee

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article

23 Citations (Scopus)

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	https://doi.org/10.1109/TMM.2008.2001380
Publication status	Published - 2008 Oct 1

All Science Journal Classification (ASJC) codes

Signal Processing
Media Technology
Computer Science Applications
Electrical and Electronic Engineering

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Jang, U., Lee, H., & Lee, S. (2008). Optimal carrier loading control for the enhancement of visual quality over OFDMA cellular networks. IEEE Transactions on Multimedia, 10(6), 1181-1196. [4657460]. https://doi.org/10.1109/TMM.2008.2001380

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