Packet Scheduling for Multimedia Traffics in Downlink Multi-User OFDM Systems

Author

Shuang, Wang ; Youjun, Gao ; Xuelin, Gu ; Hui, Tian ; Ping, Zhang

Author_Institution

Coll. of Telecom Eng., Beijing Univ. of Posts & Telecommun.

fYear

2006

fDate

22-24 Sept. 2006

Firstpage

1

Lastpage

4

Abstract

In this paper, we propose and evaluate a new packet scheduling algorithm for multimedia traffics in multi-user OFDM wireless systems. Since there will be multiple quality of service (QoS) in the next generation mobile communications, especially at the downlink, how to schedule the resources to provide different QoS classes in an efficient and fair way is a crucial issue. This algorithm allocates the resources dynamically in both time and frequency domain based on the users´ feedback channel information, fairness among users, packet urgency and loss rate of different QoS classes. It can satisfy multi-QoS requirements of both real-time and non-real-time traffics, keep fairness among users and maximize the system´s throughput under the above conditions

Keywords

OFDM modulation; feedback; mobile radio; multimedia communication; quality of service; radio links; telecommunication channels; telecommunication traffic; QoS; downlink multi-user OFDM systems; feedback channel information; multimedia traffics; next generation mobile communications; nonreal-time traffics; packet scheduling; packet urgency; quality of service; real-time traffic; Downlink; Feedback; Frequency domain analysis; Mobile communication; Multimedia systems; OFDM; Quality of service; Real time systems; Resource management; Scheduling algorithm;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2006. WiCOM 2006.International Conference on

Conference_Location

Wuhan

Print_ISBN

1-4244-0517-3

Type

conf

DOI

10.1109/WiCOM.2006.67

Filename

4149244