TY - JOUR
T1 - A RED-FEC mechanism for video transmission over WLANs
AU - Lin, Cheng Han
AU - Shieh, Ce Kuen
AU - Chilamkurti, Naveen K.
AU - Ke, Chih Heng
AU - Hwang, Wen Shyang
N1 - Funding Information:
Manuscript received September 28, 2007; revised April 1, 2008. Published August 20, 2008 (projected). This work was supported by the National Science Council (NSC), Taiwan under Contract NSC 97-2218-E-507-001. C.-H. Lin and C.-K. Shieh are with the Department of Electrical Engineering, National Cheng Kung University, Tainan 701, Taiwan, R.O.C. (e-mail: jhlin5@hpds.ee.ncku.edu.tw; shieh@hpds.ee.ncku.edu.tw). N. K. Chilamkurti is with the Department of Computer Science, La Trobe University, Victoria 3086, Australia (e-mail: n.chilamkurti@latrobe.edu.au). C.-H. Ke is with the Department of Information Management, National Kinmen Institute of Technology, Jinning, Kinmen 892 Taiwan, R.O.C. (e-mail: smallko@kmit.edu.tw). W.-S. Hwang is with the Department of Electrical Engineering, National Kaohsiung University of Applied Sciences, Taiwan 80778, R.O.C. (email: wsh-wang@mail.ee.kuas.edu.tw). Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TBC.2008.2001713
PY - 2008/9
Y1 - 2008/9
N2 - This paper proposes a Random Early Detection Forward Error Correction (RED-FEC) mechanism to improve the quality of video delivered over Wireless Local Area Networks (WLANs). In contrast to previous FEC schemes, in which the rate determination information is fed back from the receiver side, in our proposed method, the redundancy rate is calculated directly at the wireless Access Point (AP) in accordance with the network traffic load, as indicated by the AP queue length. An analytical model is developed to predict the effective packet loss rate of a video stream delivered over a WLAN with RED-FEC protection. The numerical results show that the proposed RED-FEC mechanism consistently achieves higher recovery efficiency than a conventional FEC scheme under high and low network loading conditions.
AB - This paper proposes a Random Early Detection Forward Error Correction (RED-FEC) mechanism to improve the quality of video delivered over Wireless Local Area Networks (WLANs). In contrast to previous FEC schemes, in which the rate determination information is fed back from the receiver side, in our proposed method, the redundancy rate is calculated directly at the wireless Access Point (AP) in accordance with the network traffic load, as indicated by the AP queue length. An analytical model is developed to predict the effective packet loss rate of a video stream delivered over a WLAN with RED-FEC protection. The numerical results show that the proposed RED-FEC mechanism consistently achieves higher recovery efficiency than a conventional FEC scheme under high and low network loading conditions.
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U2 - 10.1109/TBC.2008.2001713
DO - 10.1109/TBC.2008.2001713
M3 - Article
AN - SCOPUS:50549098699
SN - 0018-9316
VL - 54
SP - 517
EP - 524
JO - IRE Transactions on Broadcasting
JF - IRE Transactions on Broadcasting
IS - 3
M1 - 4599249
ER -