A Novel Transmission Policy for Reliable eMBMS Download Delivery

Author

Wang, Xiaoli ; Wang, Yingjie ; Zhang, Yongsheng

Author_Institution

DOCOMO Beijing Commun. Labs. Co., Ltd., Beijing, China

fYear

2010

fDate

18-21 April 2010

Firstpage

1

Lastpage

6

Abstract

Enhanced Multimedia Broadcast/Multicast Service (eMBMS) is a new function defined in 3GPP Release 8 specification, which supports download delivery and streaming delivery to group users in LTE mobile networks. For download delivery, there are two mechanisms implemented in different entities to improve reliability: (1) At eBMSC (Enhanced Broadcast/Multicast Service Center), Raptor code is implemented in software to provide packet-level protection in the application layer; (2) At eNB (Enhanced NodeB), HARQ is used to provide bit-level protection in the link-layer. In this paper, we first analyze the redundancy caused by the coexistence of HARQ and Raptor, and then propose a novel HARQ retransmission policy to reduce the redundancy. Simulation results, using the Matlab and OPNET, confirm significant improvement.

Keywords

Application software; Communications Society; Digital multimedia broadcasting; Feedback; Mobile communication; Multimedia communication; Protection; Redundancy; Streaming media; TV broadcasting;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference (WCNC), 2010 IEEE

Conference_Location

Sydney, Australia

ISSN

1525-3511

Print_ISBN

978-1-4244-6396-1

Type

conf

DOI

10.1109/WCNC.2010.5506249

Filename

5506249