Proportional fair resource allocation algorithm for video transmission in ofdma system

In this paper, a proportional fair resource allocation algorithm is proposed for video transmission in OFDMA system. And we formulate maximizing the summation of logarithmic users' received video quality as the optimization problem for proportional fair resource allocation. In the algorithm, th...

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Bibliographic Details
Main Authors: Yimin Zhang, Guizhong Liu, Qinli Wang, Lijun He
Format: Conference Proceeding
Language:English
Subjects:
Algorithm design and analysis
Fairness index
Indexes
OFDM
OFDMA
proportional fair
PSNR
Quality assessment
resource allocation
Resource management
video transmission
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Summary:In this paper, a proportional fair resource allocation algorithm is proposed for video transmission in OFDMA system. And we formulate maximizing the summation of logarithmic users' received video quality as the optimization problem for proportional fair resource allocation. In the algorithm, the proportional fair utility function is constructed, in which the usage efficiency of resource is determined by contribution of subcarrier to be allocated and fairness is achieved by considering accumulation of allocated subcarriers' contribution for each user. The proposed algorithm is implemented through searching optimal subcarrier can maximize the utility function so as to solve the problem formulated above. Comparing with other algorithms, we can get a better tradeoff between fairness and efficiency towards quality of users' received video in the proposed proportional fair resource allocation algorithm.
ISSN:1945-7871
1945-788X
DOI:10.1109/ICMEW.2014.6890724