Title :
Multi-h phase-coded modulation
Author :
Sasase, Iwao ; Mori, Shinsaku
Author_Institution :
Dept. of Electr. Eng., Keio Univ., Yokohama, Japan
Abstract :
An overview of some recent results for multi-h phase-coded modulation (MHPM) schemes is provided. These schemes offer power and bandwidth efficiency where time-varying modulation indices are used. Following a brief description of the structure of MHPM, its fundamental properties (e.g., minimum Euclidean distance and power spectra) are described. Decoding and demodulation of MHPM also are discussed. and some results on synchronization are summarized. MHPM combined with convolutional codes, asymmetric modulation indices, or nonuniform mapping are investigated.<>
Keywords :
codes; decoding; demodulation; phase modulation; asymmetric modulation indices; bandwidth efficiency; continuous phase modulation; convolutional codes; decoding; demodulation; minimum Euclidean distance; multi-h phase-coded modulation; nonuniform mapping; power efficiency; power spectra; synchronization; time-varying modulation indices; Bandwidth; Continuous phase modulation; Digital communication; Digital modulation; Frequency shift keying; Modulation coding; Phase modulation; Pulse shaping methods; Satellite broadcasting; Shape;
Journal_Title :
Communications Magazine, IEEE
