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

fYear

2009

fDate

28-29 Dec. 2009

Firstpage

316

Lastpage

321

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/WNIS.2009.90

Filename

5381953