Title :
Novel trellis-coded sequence and phase modulation for DS/SS system
Author :
Zhang, Q. ; Bi, G.
Author_Institution :
Dept. of Radio Eng., Southeast Univ., Nanjing, China
fDate :
5/26/1994 12:00:00 AM
Abstract :
A novel trellis-coded sequence and phase modulation (SPM) scheme is presented for the direct sequence spread spectrum (DS/SS) system. As an example, the combined two sequence and four phase-shift-keying (2-S/4-PSK) modulation scheme is described and analysed. It is shown that the trellis-coded SPM can obtain an additional gain of 1.1-1.2 dB over coded MPSK modulation
Keywords :
phase modulation; phase shift keying; spread spectrum communication; trellis codes; additional gain; coded MPSK modulation; direct sequence spread spectrum DS/SS system; four phase-shift-keying PSK modulation; phase modulation; trellis-coded SPM; trellis-coded sequence;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19940564
