Adaptive fair radio interface scheduling for LTE networks

Start Page
21
End Page
26
Article Number
6421428
Citation
9th International Conference on High Capacity Optical Networks and Enabling Technologies, HONET 2012: 6421428, 21-26 (2012-12-01)
Contribution to Conference
9th International Conference on High Capacity Optical Networks and Enabling Technologies, HONET 2012  
Publisher DOI
10.1109/HONET.2012.6421428
Scopus ID
2-s2.0-84874312474
Publisher
IEEE
The goal of advanced radio resource management procedures in 4G Long Term Evolution (LTE) is to increase the spectral efficiency beyond an ever achieved level. This objective, however, should be realized by considering an optimal trade-off between system performance and fairness among the users. This work proposes an adaptive packet scheduling mechanism which provides higher spectral efficiency during the times of high system load and a better fairness when enough radio resources are available. The proposed scheme dynamically switches between the well-known Proportional Fair and Blind Equal Throughput scheduling schemes based on the congestion level at the radio interface. Moreover, this work also provides a sophisticated mechanism to estimate the radio interface congestion level to assist the operations of the proposed Adaptive Fair scheduling scheme. The proof of concept is provided with the help of simulation results where the performance of the proposed scheme is evaluated at different radio interface congestion levels.
DDC Class
004: Informatik