Resource allocation in an LTE cellular communication system

Authors:
Raymond Kwan;Cyril Leung;Jie Zhang
Affiliations:
Centre for Wireless Network Designs, University of Bedfordshire, Luton, UK;Dept. of Electrical & Computer Engineering, The University of British Columbia, B.C., Canada;Centre for Wireless Network Designs, University of Bedfordshire, Luton, UK
Venue:
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Year:
2009

Citing 5
Cited 1

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Abstract

The problem of allocating resources for user transmissions on the downlink of a Long Term Evolution (LTE) cellular communication system is studied. A novel optimal multiuser scheduler is proposed and its performance is evaluated. Numerical results show that the system performance improves with increasing correlation among OFDMA sub-carriers. It is found that a limited amount of feedback information can provide a relatively good performance. A sub-optimal scheduler with a lower computational complexity is also proposed, and shown to provide good performance. The sub-optimal scheme is especially attractive when the number of users is large, as the complexity of the optimal scheme may be unacceptably high in many practical situations.