Practical Resource Allocation Algorithms for QoS in OFDMA-Based Wireless Systems

In this work we propose an efficient resource allocation algorithm for OFDMA based wireless systems supporting heterogeneous traffic. The proposed algorithm provides proportionally fairness to data users and short term rate guarantees to real-time users. Based on the QoS requirements, buffer occupan...

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Vydáno v:2008 5th IEEE Consumer Communications and Networking Conference s. 897 - 901
Hlavní autoři: Girici, T., Chenxi Zhu, Agre, J.R., Ephremides, A.
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: IEEE CCP 01.01.2008
Témata:
Additive white noise
Bandwidth
Base stations
Delay
Fading
Gaussian noise
Quality of service
Rayleigh channels
Resource management
Signal to noise ratio
ISBN:1424414563, 9781424414574, 1424414571, 9781424414567
ISSN:2331-9852
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Shrnutí:In this work we propose an efficient resource allocation algorithm for OFDMA based wireless systems supporting heterogeneous traffic. The proposed algorithm provides proportionally fairness to data users and short term rate guarantees to real-time users. Based on the QoS requirements, buffer occupancy and channel conditions, we propose a scheme for rate requirement determination for delay constrained sessions. Then we formulate and solve the proportional fair rate allocation problem subject to those rate requirements and power/bandwidth constraints. Simulations results show that the proposed algorithm provides significant improvement with respect to the benchmark algorithm.
ISBN:1424414563
9781424414574
1424414571
9781424414567
ISSN:2331-9852
DOI:10.1109/ccnc08.2007.209