Title :
Low Spectral Efficiency Trellis Coded Modulation Systems in a Pulse-Noise Interference Environment
Author :
Pyloudis, Konstantinos ; Robertson, Clark ; Kragh, Frank ; Ha, Tri
Author_Institution :
Electrical and Computer Engineering Department, Naval Postgraduate School, Monterey, CA 93943-5121
Abstract :
Trellis-coded modulation (TCM) is a method of implementing error correction coding without decreasing the data rate or increasing the channel bandwidth. TCM is a combination of M-ary modulation and error correction coding. This paper investigates the performance of a low spectral efficiency TCM system. The effects of both additive white Gaussian noise and pulse-noise interference (PNI) are considered for a TCM system with quadrature phase-shift keying modulation and rate r = 1/2 convolutional encoding. The TCM system shows much better than expected performance and significant resistance to PNI, and performance improves as the number of convolutional code memory elements increases.
Keywords :
AWGN; Additive white noise; Bandwidth; Convolution; Convolutional codes; Error correction; Error correction codes; Interference; Modulation coding; Pulse modulation;
Conference_Titel :
Military Communications Conference, 2007. MILCOM 2007. IEEE
Conference_Location :
Orlando, FL, USA
Print_ISBN :
978-1-4244-1513-7
Electronic_ISBN :
978-1-4244-1513-7
DOI :
10.1109/MILCOM.2007.4455180
