Title :
Cross-Layer Channel-Quality-Fair Scheduling for Video Uplink of Camera Networks over WiMAX
Author :
Wu, Po-Han ; Hwang, Jenq-Neng
Author_Institution :
Dept. of Electr. Eng. Seattle, Univ. of Washington, Seattle, WA, USA
Abstract :
We propose a systematic cross-layer joint scheduling and resource allocation algorithm to provide enhanced quality of service (QoS) for real-time video uplink of camera networks over WiMAX. Under the constraint of limited available OFDMA resource, how to fairly schedule all mobile camera stations (CSs) with varying channel quality and maintain system performance simultaneously is always a critical issue for practical QoS design of a WiMAX base station (BS). The proposed system uses video encoding rate adaptation in application (APP) layer of CSs and effectively incorporates with the medium access control (MAC) QoS mechanisms of the BSs to greatly improve the spectrum efficiency of WiMAX.
Keywords :
WiMax; access protocols; quality of service; resource allocation; video cameras; video coding; video communication; wireless channels; wireless sensor networks; IEEE 802.16 standard; MAC protocol; OFDMA resource; QoS; WiMAX; application layer; camera networks; cross-layer channel quality fair scheduling; medium access control; mobile camera station; quality of service; real-time video uplink; resource allocation algorithm; video encoding rate adaptation; Bit rate; Cameras; Cascading style sheets; Encoding; Mobile communication; Streaming media; Throughput;
Conference_Titel :
Communications (ICC), 2011 IEEE International Conference on
Conference_Location :
Kyoto
Print_ISBN :
978-1-61284-232-5
Electronic_ISBN :
1550-3607
DOI :
10.1109/icc.2011.5962579