NDLI: Rotational-invariance code design for the system of TCM

Content Provider	IEEE Xplore Digital Library
Author	Xujing Minjian Zhao
Copyright Year	2007
Description	Author affiliation: Information and communication department, Zhejiang University, Hang Zhou Zhejing China (Xujing Minjian Zhao)
Abstract	Continuous phase modulation (CPM) is an attractive technique for digital communication, with the development of the trellis coded modulation (TCM), the combination of TCM and CPM is largely applied to improve the performance of MCPM. However, the combination of TCM and CPM cannot utilize unattached differential encoding simply to solve the problem that phase offset caused. As a result, a rotational-invariance system of TCM_CPM is needed to solve the problem. This paper based on the Corneliu Eugen D.Sterian's design of the rotational-invariance TCM_QPSK (QPSK: quad phase shift keying) and TCM_QAM (QAM: quadrature amplitude modulation am), considered the characteristic of CPM, and made a rotational-invariance code design for the system of TCM_CPM, which ensure the system invariant to rotations of the signal constellation by symmetry angles. We did the simulation of rotational-invariance system of 32 states 8CPM and 4CPM TCM_CPM, with pi/4 rotational-invariance.
Starting Page	70
Ending Page	74
File Size	1360267
Page Count	5
File Format	PDF
ISBN	9781424414734
DOI	10.1109/ICCCAS.2007.6247576
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-07-11
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Quadrature amplitude modulation
Content Type	Text
Resource Type	Article

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