Radio Resource Allocation in SC-FDMA Uplink with Resource Adjacency Constraints
Main Article Content
Abstract
Radio Resource Allocation (RRA) in cellular systems is a relevant and difficult task that shouldassign the system resources in the most efficient manner while fulfilling different constraints suchas Quality of Service (QoS). In wireless systems that employ Single Carrier - Frequency DivisionMultiple Access (SC-FDMA) as in Long Term Evolution (LTE) uplink, RRA is even more difficultsince the frequency resources should be assigned in contiguous blocks of subcarriers to eachterminal. In this work we study two important RRA problems in SC-FDMA: the total data ratemaximization and the total data rate maximization with minimum user satisfaction constraints. Weformulate them as optimization problems and show that the optimal solutions are not practical tobe employed in real systems due to the high computational complexity. Therefore, we propose twoefficient heuristic solutions for those problems. By simulation results, we show that both solutionsare near optimal and subject only to small performance degradation compared to the complex andimpractical optimal solutions.
Article Details
How to Cite
Lima, F. R. M., Maciel, T. F., & Cavalcanti, F. R. P. (2016). Radio Resource Allocation in SC-FDMA Uplink with Resource Adjacency Constraints. Journal of Communication and Information Systems, 31(1). https://doi.org/10.14209/jcis.2016.24
Issue
Section
Regular Papers
Authors who publish in this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
- Authors can enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) before and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
___________