Title :
QoS based Radio Resource Allocation and Scheduling with Different User Data Rate Requirements for OFDMA Systems
Author :
Santos, Ricardo B. ; Lima, Francisco Rafael M ; Freitas, Walter C. ; Cavalcanti, Francisco Rodrigo P
Author_Institution :
Fed. Univ. of Ceara, Fortaleza
Abstract :
In this paper a radio resource allocation (RRA) and scheduling algorithm to maximize the satisfaction of users served by an orthogonal frequency division multiple access (OFDMA) system is proposed. The satisfaction oriented resource allocation (SORA) algorithm, based on low complexity heuristics, divides the users into two sets: satisfied and unsatisfied. Then, it performs resource allocation taking advantage of channel frequency selectivity and the characteristics of each set. The main advantage of the proposed algorithm is the capacity of keeping a high number of users satisfied by resources from users that would be unsatisfied in any case.
Keywords :
channel allocation; frequency division multiple access; quality of service; scheduling; wireless channels; OFDMA systems; QoS; channel frequency selectivity; orthogonal frequency division multiple access; radio resource allocation; satisfaction oriented resource allocation; scheduling; user data rate requirements; Frequency conversion; Land mobile radio; Mobile communication; Modeling; Quality of service; Radio spectrum management; Resource management; Scheduling algorithm; System performance; Wireless communication;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2007. PIMRC 2007. IEEE 18th International Symposium on
Conference_Location :
Athens
Print_ISBN :
978-1-4244-1144-3
Electronic_ISBN :
978-1-4244-1144-3
DOI :
10.1109/PIMRC.2007.4394699
