Title :
Compared performances of trellis coded QDPSK modulation and CPFSK modulation with discrimination detection
Author :
Prescott, Glenn E. ; Bargallo, Juan M.
Author_Institution :
Telecomm. & Inf. Sci. Lab., Kansas Univ., Lawrence, KS, USA
Abstract :
The performance of a trellis coded four phase differential phase shift keying (TC QDPSK) modem with symbol decoding is compared with a continuous phase frequency shift keying (CPFSK) modem using noncoherent detection. The bit error rate (BER) performance as a function of signal-to-noise ratio per bit is obtained by simulation of both systems. It is shown that the trellis coded system provides a better BER performance for a given signal-to-noise ratio per bit. The bandwidth requirements for both systems are analyzed and compared. The TC 4DPSK system trades off part of the maximum achievable coding gain for a simpler implementation
Keywords :
Monte Carlo methods; modems; performance evaluation; phase shift keying; CPFSK; Monte Carlo method; QDPSK; TC 4DPSK; bandwidth requirements; bit error rate; continuous phase frequency shift keying; discrimination detection; modem; noncoherent detection; signal-to-noise ratio; simulation; symbol decoding; trellis coded four phase differential phase shift keying; Bandwidth; Bit error rate; Decoding; Differential phase shift keying; Frequency shift keying; Modems; Modulation coding; Phase detection; Phase frequency detector; Signal to noise ratio;
Conference_Titel :
Aerospace and Electronics Conference, 1991. NAECON 1991., Proceedings of the IEEE 1991 National
Conference_Location :
Dayton, OH
Print_ISBN :
0-7803-0085-8
DOI :
10.1109/NAECON.1991.165791
