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A cross-layer method for multi-media traffics with QoS guaranteed on multi-carrier wireless system

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5 Author(s)
Liu, Jian ; Huazhong Univ. of Sci. & Technol., Wuhan ; Guangxu Zhu ; Lei Guo ; Lee Li
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In this paper we present delay jitter protected-oriented scheduling mechanism for multi-traffic with QoS guaranteed on multi-carrier wireless system. The wireless physical channel quality and the time-delay features requirements of traffics are considered conjointly. When the power is allocated to all sub-carrier according to the water-filling algorithm for maximizing the capacity of the multi-carrier channel, the most emergent packets are scheduled to the sub-channel which is the best quality in multi-carrier frame before AMC adjusting. Analysis and simulation show that the method improves the performance of multi-traffic transmission for multi-carrier systems.

Published in:

Intelligent Signal Processing and Communication Systems, 2007. ISPACS 2007. International Symposium on

Date of Conference:

Nov. 28 2007-Dec. 1 2007