Accession Number:

ADA470398

Title:

Performance Analysis of a Variable Data Rate TCM Waveform Transmitted Over a Channel with AWGN and Pulse-Noise Interference

Descriptive Note:

Master's thesis

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s):

Report Date:

2007-06-01

Pagination or Media Count:

121.0

Abstract:

Trellis-coded modulation TCM is a technique where forward error correction coding and modulation are treated in a single operation without increasing the channel bandwidth. In this thesis the performance of a variable data rate TCM waveform transmitted over a channel is investigated. In general, TCM systems with rate 12 and rate 23 convolutional codes and Quandraface-shift keying QPSK and 8-phase-shift keying PSK modulation, respectively, are considered for two cases. In the first case, the number of memory elements K remains constant as the code rate increases. In the second case, the number of memory elements increases linearly with code rate, so that the total number of memory elements for 8-PSK, r23 TCM is given by 1 2 2 K K , where 1 2 K is the number of memory elements for the QPSK, r12 convolutionally encoded TCM. The effects of pulse-noise interference PNI in addition to additive white Gaussian noise AWGN are considered. It was found that TCM systems have significant resistance to PNI when K is large enough.

Subject Categories:

  • Statistics and Probability
  • Computer Programming and Software

Distribution Statement:

APPROVED FOR PUBLIC RELEASE