Title :
Maximum Free Distance Binary to M-ary Convolutional Codes for Pseudo Chaotic Type Time Hopping PPM Impulse Radio UWB
Author :
Villarreal-Reyes, S. ; Edwar, R.M.
Author_Institution :
Dept. of Electron. & Electr. Eng., Loughborough Univ.
fDate :
4/1/2007 12:00:00 AM
Abstract :
The topic of spectral line suppression is of major interest in the design of pulse position modulated time hopping impulse radio ultra wideband communications systems. Previously pseudo-chaotic time hopping (PCTH) has been introduced to eliminate spectral lines and improving bit error rates (BER). In this letter, new binary to M-ary maximum free distance convolutional codes are introduced showing similar power spectral density characteristics as those obtained with PCTH and better BER for hard and soft decision decoding
Keywords :
convolutional codes; error statistics; pulse position modulation; ultra wideband communication; bit error rates; convolutional codes; hard decision decoding; impulse radio; power spectral density characteristics; pseudochaotic type time hopping pulse position modulation; soft decision decoding; spectral line suppression; ultra wideband communications systems; Bit error rate; Chaos; Chaotic communication; Convolution; Convolutional codes; Decoding; Modulation coding; Pulse modulation; Ultra wideband communication; Ultra wideband technology; Convolutional Codes; power spectral density (PSD); pulse position modulated (PPM); time hopping impulse radio (TH–IR); ultra wideband (UWB);
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2007.892935
