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Cross-layer design for real-time video streaming over 1xEV-DO using multiple objective optimization

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4 Author(s)
T. Ozgelebi ; Coll. of Eng., Koc Univ., Istanbul, Turkey ; M. O. Sunay ; A. M. Tekalp ; M. R. Civanlar

In wireless packet transmission systems, it is crucial to provide fairness in service while maximizing user utility and channel throughput. This is possible via intelligent allocation of system resources. For real time video applications, a pre-roll time for pre-fetching data at the client buffer is needed in order to compensate for channel variations that cause client buffer under/overflows, hence facilitating continuous playout of the video. In this paper, a novel multiple objective optimized (MOO) opportunistic multiple access scheme for optimal scheduling of users in a 1xEV-DO (IS-856) system is presented. At each time slot, the user that experiences the best compromise between the least buffer occupancy and the best channel condition is served. Experiments conducted in ITU Pedestrian A and Vehicular B environments show that our algorithm treats each user fairly while its channel throughput performance is very close to the ideal case, in which the user with the best channel characteristics is always served with no buffer constraints

Published in:

GLOBECOM '05. IEEE Global Telecommunications Conference, 2005.  (Volume:5 )

Date of Conference:

2-2 Dec. 2005