Packet scheduling and resource allocation for video transmission over downlink OFDMA networks

Author

Li, Fan ; Liu, Guizhong ; Xu, Jin ; He, Lijun

Author_Institution

Sch. of Electron. & Inf. Eng., Xi´´an Jiaotong Univ., Xi´´an, China

fYear

2009

fDate

26-28 Aug. 2009

Firstpage

1

Lastpage

5

Abstract

This paper investigates the problem of multiuser packet scheduling and resource allocation for video transmission over downlink OFDMA networks. A cross-layer optimization function is proposed with the goal to maximize the received video quality. Unlike the previous methods in which the objective function is estimated the video quality in the unit of bit, the proposed algorithm develop the objective function in unit of packet, which is more fit for video transmission. In order to solve the optimization problem in a low complexity, a suboptimal algorithm for packet scheduling and resource allocation is proposed. The algorithm is compatible with the emerging wireless standards, such as IEEE 802.16. The simulation results show that the proposed algorithm outperforms the previous resource allocation schemes in terms of received video qualities.

Keywords

OFDM modulation; frequency division multiple access; optimisation; resource allocation; telecommunication network management; video communication; IEEE 802.16; cross-layer optimization function; downlink OFDMA networks; packet scheduling; resource allocation; video quality; video transmission; Cross layer design; Decoding; Downlink; Frequency conversion; Media Access Protocol; Physical layer; Resource management; Scheduling algorithm; Streaming media; Switches; OFDMA; cross-layer design; packet scheduling; resource allocation; video transmission;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Networking in China, 2009. ChinaCOM 2009. Fourth International Conference on

Conference_Location

Xian

Print_ISBN

978-1-4244-4337-6

Electronic_ISBN

978-1-4244-4337-6

Type

conf

DOI

10.1109/CHINACOM.2009.5339770

Filename

5339770