|Table of Contents|

Distributed Data Scheduling Based on Heuristic Mechanism in Wireless OFDMA Networks

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2008年01期
Page:
91-95
Research Field:
Publishing date:

Info

Title:
Distributed Data Scheduling Based on Heuristic Mechanism in Wireless OFDMA Networks
Author(s):
SUN Li-xin1GUO Kun-qi2YU Xiao-yang1JIA Shi-lou3WANG Mu-kun1
1.School of Measurement and Control Technology and Communication Engineering,Harbin University ofScience and Technology,Harbin 150080,China;2.Shanghai Research Center for Wireless Communications,Shanghai 200050,China;3.Communication Research Center,Harbin
Keywords:
OFDMA data scheduling fairness joint layer
PACS:
TN929.5
DOI:
-
Abstract:
By formulating the optimization of data scheduling in wireless OFDMA Ad-hoc networks as the constrained optimization of joint layer resource allocation,a distributed scheduling algorithm(DSA) with heuristic mechanism is proposed based on the optimization model.The proposed algorithm selects a sub-carrier for each link according to the condition information of local sub-carrier condition while protecting the effectiveness of selecting sub-carrier by the method using stochastic probability.Simulation results show: compared with other conventional methods,the proposed algorithm achieves the better effectiveness and the global fairness is improved by varying the probability threshold of DSA for sub-carrier selection.

References:

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Last Update: 2012-12-05