scholarly journals Management of IEEE 802.11e Wireless LAN for Realtime QoS-Guaranteed Teleconference Service with Differentiated H.264 Video Transmission

2006 ◽  
pp. 25-36
Author(s):  
Soo-Yong Koo ◽  
Byung-Kil Kim ◽  
Young-Tak Kim
Keyword(s):  
Wireless Lan ◽  
Video Transmission ◽  
Ieee 802.11E

A Cross-Layer Design for Video Streaming Over 802.11e HCCA Wireless Network

2013 ◽  
pp. 261-273
Author(s):  
Hongli Luo
Keyword(s):  
Wireless Network ◽  
Video Streaming ◽  
Wireless Lan ◽  
Video Transmission ◽  
Video Codec ◽  
Ieee 802.11E ◽  
Cross Layer ◽  
Cross Layer Design ◽  
Queuing Delay

Video transmission over wireless networks has quality of service (QoS) requirements and the time-varying characteristics of wireless channels make it a challenging task. IEEE 802.11 Wireless LAN has been widely used for the last mile connection for multimedia transmission. In this paper, a cross-layer design is presented for video streaming over IEEE 802.11e HCF Controlled Channel Access (HCCA) WLAN. The goal of the cross-layer design is to improve the quality of the video received in a wireless network under the constraint of network bandwidth. The approach is composed of two algorithms. First, an allocation of optimal TXOP is calculated which aims at maintaining a short queuing delay at the wireless station at the cost of a small TXOP allocation. Second, the transmission of the packets is scheduled according to the importance of the packets in order to maximize the visual quality of video. The approach is compared with the standard HCCA on NS2 simulation tools using H.264 video codec. The proposed cross-layer design outperforms the standard approach in terms of the PSNRs of the received video. This approach reduces the packet loss to allow the graceful video degradation, especially under heavy network traffic.

Ipb-frame adaptive mapping mechanism for video transmission over IEEE 802.11e WLANs

2014 ◽  
Vol 44 (2) ◽  
pp. 5-12 ◽  
Author(s):  
Xin-Wei Yao ◽  
Wan-Liang Wang ◽  
Shuang-Hua Yang ◽  
Yue-Feng Cen ◽  
Xiao-Min Yao ◽  
...  
Keyword(s):  
Video Transmission ◽  
Ieee 802.11E ◽  
Mapping Mechanism

scholarly journals Energy Efficient H.263 Video Transmission in Power Saving Wireless LAN Infrastructure

2010 ◽  
Vol 12 (2) ◽  
pp. 142-153 ◽  
Author(s):  
A.M. Kholaif ◽  
T.D. Todd ◽  
P. Koutsakis ◽  
A. Lazaris
Keyword(s):  
Energy Efficient ◽  
Wireless Lan ◽  
Video Transmission ◽  
Power Saving

scholarly journals IEEE 802.11e/802.11k wireless LAN: spectrum awareness for distributed resource sharing

2004 ◽  
Vol 4 (8) ◽  
pp. 881-902 ◽  
Author(s):  
Stefan Mangold ◽  
Zhun Zhong ◽  
Guido R. Hiertz ◽  
Bernhard Walke
Keyword(s):  
Resource Sharing ◽  
Wireless Lan ◽  
Ieee 802.11E
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