Performance analysis of hierarchical modulation with higher spectrum efficiency for a higher date rate T-DMB system

Authors:
Linlin Dong;Lixin Sun;Xiaoming Jiang;Na Zhu
Affiliations:
School of Computer Science and Telecommunication Engineering, Jiangsu University, Jiangsu, China;School of Computer Science and Telecommunication Engineering, Jiangsu University, Jiangsu, China;School of Computer Science and Telecommunication Engineering, Jiangsu University, Jiangsu, China;School of Computer Science and Telecommunication Engineering, Jiangsu University, Jiangsu, China
Venue:
ICICA'12 Proceedings of the Third international conference on Information Computing and Applications
Year:
2012

Citing 3
Cited 0

Model checking hierarchical probabilistic systems

ICFEM'10 Proceedings of the 12th international conference on Formal engineering methods and software engineering
Channel estimation for OFDM systems based on comb-type pilot arrangement in frequency selective fading channels

IEEE Transactions on Consumer Electronics
Backward-compatible terrestrial digital multimedia broadcasting system for multichannel audio service

IEEE Transactions on Consumer Electronics

Quantified Score

Hi-index	0.00

Visualization

Abstract

In order to improve current transmission capacity of the ancillary data in terrestrial digital multimedia broadcasting (T-DMB) system, the hierarchical modulation is adopted. The hierarchical modulation consists of Higher-priority (HP) data, which is the same as in the legacy T-DMB, and Low-priority (LP) data, which carriers the additional data for the upgrade system, while the backward compatibility is guaranteed. Both QPSK modulation and 4ASK modulation are good candidates for LP data modulation. So in this paper we adopt coherent detection with comb-type pilot arrangement, the Least Squares (LS) estimate of pilot signals and the piecewise-linear interpolation channel estimation. Simulation results show that LP-QPSK provides a better choice than LP-4ASK for achieving a higher data rate in the Advance T-DMB (AT-DMB).