Title :
A Downlink Dynamic Resource Allocation Scheme for Multi-cell OFDMA System
Author :
Chen, Yueyun ; Guo, Shuaiqi
Author_Institution :
Dept. of Commun. Eng., Univ. of Sci. & Technol. Beijing, Beijing, China
Abstract :
A downlink radio resource allocation scheme based on ICI coordination for multi-cell OFDMA system is proposed. By dynamically determining frequency reuse factor, data rate of the users who have bad channel quality is increased. In order to reduce the packet delay of the users with high average packet arrival rate, the average packet arrival rate is used as a factor of the utility function in scheduling algorithm. Simulation results show that the proposed scheme yields better performance for data services in fast fading channel.
Keywords :
cellular radio; fading channels; frequency division multiple access; interference (signal); resource allocation; downlink dynamic resource allocation; fading channels; frequency reuse factor; intercell interference; multi-cell orthogonal frequency division multiple access; packet arrival rate; packet delay; utility function; Bit error rate; Delay effects; Downlink; Frequency conversion; Frequency domain analysis; Interference; Radio spectrum management; Resource management; Scheduling algorithm; Throughput; Dynamic Channel Allocation; ICI; OFDMA;
Conference_Titel :
Wireless Networks and Information Systems, 2009. WNIS '09. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-0-7695-3901-0
Electronic_ISBN :
978-1-4244-5400-6
DOI :
10.1109/WNIS.2009.90
