Hierarchical modulation with vector rotation for E-MBMS transmission in LTE systems

Authors:
Hui Zhao;Xiaoping Zhou;Yunchuan Yang;Wenbo Wang
Affiliations:
Key Laboratory of Universal Wireless Communication, Beijing University of Posts and Telecommunications, Ministry of Education, Beijing, China;Key Laboratory of Universal Wireless Communication, Beijing University of Posts and Telecommunications, Ministry of Education, Beijing, China;Key Laboratory of Universal Wireless Communication, Beijing University of Posts and Telecommunications, Ministry of Education, Beijing, China;Key Laboratory of Universal Wireless Communication, Beijing University of Posts and Telecommunications, Ministry of Education, Beijing, China
Venue:
Journal of Electrical and Computer Engineering - Special issue on LTE/LTE-advanced cellular communication networks
Year:
2010

Citing 10
Cited 0

Elements of Information Theory (Wiley Series in Telecommunications and Signal Processing)

Elements of Information Theory (Wiley Series in Telecommunications and Signal Processing)
Hierarchical QAM BICM MIMO systems with iterative decoding and applications to media broadcast

WOWMOM '08 Proceedings of the 2008 International Symposium on a World of Wireless, Mobile and Multimedia Networks
Multiresolution with hierarchical modulations for long term evolution of UMTS

EURASIP Journal on Wireless Communications and Networking - Special issue on OFDMA architectures, protocols, and applications
Layered video multicast using diversity embedded space time codes

SARNOFF'09 Proceedings of the 32nd international conference on Sarnoff symposium
Cross-layer optimization of unequal protected layered video over hierarchical modulation

GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Progressive source transmissions using joint source-channel coding and hierarchical modulation in packetized networks

GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
On the interaction between channel coding and hierarchical modulation

ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Signal space diversity: a power- and bandwidth-efficient diversity technique for the Rayleigh fading channel

IEEE Transactions on Information Theory
Universal multiresolution source codes

IEEE Transactions on Information Theory
A recursive algorithm for the exact BER computation of generalized hierarchical QAM constellations

IEEE Transactions on Information Theory

Quantified Score

Hi-index	0.00

Visualization

Abstract

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.