Abstract
One of the major challenges in transmitting real time video data in broadband wireless access (BWA) systems is that the bit rate of the video traffic varies from time to time, and hence the bandwidth utilization is low. To cope with the difficulties, we propose an enhanced uplink scheduling algorithm for variable bit rate video (VBR) traffic transmission in IEEE 802.16 BWA systems. In the proposed algorithm, the base station (BS) assigns uplink bandwidth to the video user by considering the traffic state transitions. The uplink bandwidth is divided into several intervals and each interval represents a traffic state. Only when the traffic state is changed, the bandwidth request process is incurred. Also, by using two reserved bits in the generic MAC header of IEEE 802.16 BWA systems as piggyback bits, the information of video traffic state transition can be sent to the BS without extra overhead. Simulations conducted with QualNet show that the proposed algorithm provides better performance in that the bandwidth waste ratio of our proposed algorithm is less than that of the conventional algorithms.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009 |
| Pages | 1330-1334 |
| Number of pages | 5 |
| DOIs | |
| Publication status | Published - 2009 Nov 30 |
| Event | 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009 - Leipzig, Germany Duration: 2009 Jun 21 → 2009 Jun 24 |
Publication series
| Name | Proceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009 |
|---|
Other
| Other | 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009 |
|---|---|
| Country | Germany |
| City | Leipzig |
| Period | 09-06-21 → 09-06-24 |
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All Science Journal Classification (ASJC) codes
- Computer Networks and Communications
- Computer Science Applications
- Software
Cite this
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An enhanced uplink scheduling algorithm for video traffic transmission in IEEE 802.16 BWA systems. / Chen, Yeong Sheng; Deng, Der-Jiunn; Hsu, Yu Ming; Wang, Sheng De.
Proceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009. 2009. p. 1330-1334 (Proceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - An enhanced uplink scheduling algorithm for video traffic transmission in IEEE 802.16 BWA systems
AU - Chen, Yeong Sheng
AU - Deng, Der-Jiunn
AU - Hsu, Yu Ming
AU - Wang, Sheng De
PY - 2009/11/30
Y1 - 2009/11/30
N2 - One of the major challenges in transmitting real time video data in broadband wireless access (BWA) systems is that the bit rate of the video traffic varies from time to time, and hence the bandwidth utilization is low. To cope with the difficulties, we propose an enhanced uplink scheduling algorithm for variable bit rate video (VBR) traffic transmission in IEEE 802.16 BWA systems. In the proposed algorithm, the base station (BS) assigns uplink bandwidth to the video user by considering the traffic state transitions. The uplink bandwidth is divided into several intervals and each interval represents a traffic state. Only when the traffic state is changed, the bandwidth request process is incurred. Also, by using two reserved bits in the generic MAC header of IEEE 802.16 BWA systems as piggyback bits, the information of video traffic state transition can be sent to the BS without extra overhead. Simulations conducted with QualNet show that the proposed algorithm provides better performance in that the bandwidth waste ratio of our proposed algorithm is less than that of the conventional algorithms.
AB - One of the major challenges in transmitting real time video data in broadband wireless access (BWA) systems is that the bit rate of the video traffic varies from time to time, and hence the bandwidth utilization is low. To cope with the difficulties, we propose an enhanced uplink scheduling algorithm for variable bit rate video (VBR) traffic transmission in IEEE 802.16 BWA systems. In the proposed algorithm, the base station (BS) assigns uplink bandwidth to the video user by considering the traffic state transitions. The uplink bandwidth is divided into several intervals and each interval represents a traffic state. Only when the traffic state is changed, the bandwidth request process is incurred. Also, by using two reserved bits in the generic MAC header of IEEE 802.16 BWA systems as piggyback bits, the information of video traffic state transition can be sent to the BS without extra overhead. Simulations conducted with QualNet show that the proposed algorithm provides better performance in that the bandwidth waste ratio of our proposed algorithm is less than that of the conventional algorithms.
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U2 - 10.1145/1582379.1582671
DO - 10.1145/1582379.1582671
M3 - Conference contribution
SN - 9781605585697
T3 - Proceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009
SP - 1330
EP - 1334
BT - Proceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009
ER -