Abstract
In performing video multicast over WiMAX networks, AMC enables the BSs to be able to select an appropriate modulation method in accordance with the transmission objective, namely to improve the video quality or to maximize the bandwidth utilization efficiency. However, by choosing the modulation method which maximizes the video quality at all of the SSs, the bandwidth utilization efficiency is reduced and vice versa. In addition, because wireless channels are noisy, FEC is always employed for video multicast. However, by choosing high FEC ratio, the video quality is improved but the bandwidth utilization efficiency is degraded and vice versa. In other words, a tradeoff exists between the video quality and the bandwidth utilization efficiency for video multicast over WiMAX networks. Accordingly, the present study proposes a scheme designated as Performance-Driven Robust Video Multicast (PDRVM), in which both the modulation method and the FEC ratio are determined adaptively in accordance with the network status by mathematical analyses. Simulation results show that PDRVM not only ensures that most of the SSs acquire a good video quality, but also makes the best possible use of the available transmission resources.
| Original language | English |
|---|---|
| Pages (from-to) | 281-295 |
| Number of pages | 15 |
| Journal | Journal of High Speed Networks |
| Volume | 19 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2013 Dec 1 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Information Systems
- Hardware and Architecture
- Computer Networks and Communications
Cite this
}
Performance-Driven Robust Video Multicast over broadband wireless access networks. / Shieh, Ce-Kuen; Yu, Chia Yu; Lin, Cheng Han; Ke, Chih Heng.
In: Journal of High Speed Networks, Vol. 19, No. 4, 01.12.2013, p. 281-295.Research output: Contribution to journal › Article
TY - JOUR
T1 - Performance-Driven Robust Video Multicast over broadband wireless access networks
AU - Shieh, Ce-Kuen
AU - Yu, Chia Yu
AU - Lin, Cheng Han
AU - Ke, Chih Heng
PY - 2013/12/1
Y1 - 2013/12/1
N2 - In performing video multicast over WiMAX networks, AMC enables the BSs to be able to select an appropriate modulation method in accordance with the transmission objective, namely to improve the video quality or to maximize the bandwidth utilization efficiency. However, by choosing the modulation method which maximizes the video quality at all of the SSs, the bandwidth utilization efficiency is reduced and vice versa. In addition, because wireless channels are noisy, FEC is always employed for video multicast. However, by choosing high FEC ratio, the video quality is improved but the bandwidth utilization efficiency is degraded and vice versa. In other words, a tradeoff exists between the video quality and the bandwidth utilization efficiency for video multicast over WiMAX networks. Accordingly, the present study proposes a scheme designated as Performance-Driven Robust Video Multicast (PDRVM), in which both the modulation method and the FEC ratio are determined adaptively in accordance with the network status by mathematical analyses. Simulation results show that PDRVM not only ensures that most of the SSs acquire a good video quality, but also makes the best possible use of the available transmission resources.
AB - In performing video multicast over WiMAX networks, AMC enables the BSs to be able to select an appropriate modulation method in accordance with the transmission objective, namely to improve the video quality or to maximize the bandwidth utilization efficiency. However, by choosing the modulation method which maximizes the video quality at all of the SSs, the bandwidth utilization efficiency is reduced and vice versa. In addition, because wireless channels are noisy, FEC is always employed for video multicast. However, by choosing high FEC ratio, the video quality is improved but the bandwidth utilization efficiency is degraded and vice versa. In other words, a tradeoff exists between the video quality and the bandwidth utilization efficiency for video multicast over WiMAX networks. Accordingly, the present study proposes a scheme designated as Performance-Driven Robust Video Multicast (PDRVM), in which both the modulation method and the FEC ratio are determined adaptively in accordance with the network status by mathematical analyses. Simulation results show that PDRVM not only ensures that most of the SSs acquire a good video quality, but also makes the best possible use of the available transmission resources.
UR - http://www.scopus.com/inward/record.url?scp=84892716704&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84892716704&partnerID=8YFLogxK
U2 - 10.3233/JHS-130478
DO - 10.3233/JHS-130478
M3 - Article
VL - 19
SP - 281
EP - 295
JO - Journal of High Speed Networks
JF - Journal of High Speed Networks
SN - 0926-6801
IS - 4
ER -