Title :
A novel detection technique for CPM using variable mapping method
Author :
Nemoto, Koji ; Yamazato, Takaya ; Sasase, Iwao ; Mori, Shinsaku
Author_Institution :
Dept. of Electr. Eng., Keio Univ., Yokohama, Japan
Abstract :
A variable mapping method for CPM (continuous phase modulation) is proposed in which the data symbols are decided by both the data bits and the accumulated phase states in order to simplify the detection. The author consider two schemes, 1REC and 1RC, and evaluate these schemes in terms of simplification of detection and error performance. It is found that the receiver for CPM can detect symbol-by-symbol simply like π/4 shift QPSK. Computer simulation shows that 1RC is insensitive to sampling timing offset. It is found that one can apply phase detection to the CPM scheme without sacrificing such advantages of CPM as efficient bandwidth and constant envelope by only using a variable mapping method
Keywords :
continuous phase modulation; signal detection; signal sampling; timing; CPM; continuous phase modulation; detection; error performance; sampling timing offset; variable mapping method; Continuous phase modulation; Filtering; Frequency; Maximum likelihood detection; Phase detection; Phase shift keying; Sampling methods; Signal mapping; Timing; Transmitters;
Conference_Titel :
Communications, Computers and Signal Processing, 1993., IEEE Pacific Rim Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-0971-5
DOI :
10.1109/PACRIM.1993.407296
