Title :
Uniformity of high dimensional trellis-coded modulation
Author :
Chen, Changlin ; Dill, Jeffrey C. ; Lo, Yung-Cheng ; Lindsey, Alan R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Ohio Univ., Athens, OH, USA
Abstract :
The uniformity of a new trellis-coded modulation for spread spectrum communications, called high dimensional trellis-coded modulation (HDTCM) is studied. High dimensional trellis-coded modulation integrates a new block code with permuted state structure and a high dimensional signal constellation. It combines not only coding and modulation, but also PN spreading into one single process. The uniformity of the scheme enables us to choose an arbitrary reference during performance analysis which greatly simplifies the performance analysis. The paper proves that high dimensional trellis-coded modulation with a bi-orthogonal signal constellation is a uniform scheme. It further points out that the uniformity of the HDTCM scheme depends upon the uniformity of the signal constellation used.
Keywords :
block codes; pseudonoise codes; spread spectrum communication; trellis coded modulation; HDTCM; PN spreading; TCM; bi-orthogonal signal constellation; block code; high dimensional signal constellation; high dimensional trellis-coded modulation; performance analysis; permuted state structure; spread spectrum communications; uniformity; Bandwidth; Block codes; Computer science; Constellation diagram; Euclidean distance; Modulation coding; Performance analysis; Spread spectrum communication; Symmetric matrices; Telephony;
Conference_Titel :
Signals, Systems & Computers, 1997. Conference Record of the Thirty-First Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-8186-8316-3
DOI :
10.1109/ACSSC.1997.679127
