Hierarchical Modulation with Vector Rotation for E-MBMS Transmission in LTE Systems
Joint Authors
Bo Wang, Wenbo
Yang, Yunchuan
Zhou, Xiaoping
Zhao, Hui
Source
Journal of Electrical and Computer Engineering
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-09-20
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Engineering Sciences and Information Technology
Information Technology and Computer Science
Abstract EN
Enhanced Multimedia Broadcast and Multicast Service (E-MBMS) is considered of key importance for the proliferation of Long-Term Evolution (LTE) network in mobile market.
Hierarchical modulation (HM), which involves a “base-layer” (BL) and an “enhancement-layer” (EL) bit streams, is a simple technique for achieving tradeoff between service quality and radio coverage.
Therefore, it is appealing for MBMS.
Generally, HM suffers from the severe performance degradation of the less protected EL stream.
In this paper, HM with vector rotation operation introduced to EL stream is proposed, in order to improve EL's performance.
With the proper interleaving in frequency domain, this operation can exploit the inherent diversity gain from the multipath channel.
In this way, HM with vector rotation can effectively enhance multimedia broadcasting on quality video and coverage.
The simulation results with scalable video coding (SVC) as source show the significant benefits in comparison with the conventional HM and alternative schemes.
American Psychological Association (APA)
Zhao, Hui& Zhou, Xiaoping& Yang, Yunchuan& Bo Wang, Wenbo. 2010. Hierarchical Modulation with Vector Rotation for E-MBMS Transmission in LTE Systems. Journal of Electrical and Computer Engineering،Vol. 2010, no. 2010, pp.1-9.
https://search.emarefa.net/detail/BIM-462927
Modern Language Association (MLA)
Zhao, Hui…[et al.]. Hierarchical Modulation with Vector Rotation for E-MBMS Transmission in LTE Systems. Journal of Electrical and Computer Engineering No. 2010 (2010), pp.1-9.
https://search.emarefa.net/detail/BIM-462927
American Medical Association (AMA)
Zhao, Hui& Zhou, Xiaoping& Yang, Yunchuan& Bo Wang, Wenbo. Hierarchical Modulation with Vector Rotation for E-MBMS Transmission in LTE Systems. Journal of Electrical and Computer Engineering. 2010. Vol. 2010, no. 2010, pp.1-9.
https://search.emarefa.net/detail/BIM-462927
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-462927