Title :
Marker codes to correct insertion/deletion errors in differential pulse-position modulation for wireless infrared communications
Author :
Sethakaset, U. ; Gulliver, T.A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
Abstract :
We apply marker codes to differential pulse-position modulation (DPPM) for wireless infrared communications in order to correct insertion/deletion errors. We present the encoder and decoder algorithms, and investigate the performance using both analysis and simulation. Over a non-dispersive channel, DPPM with marker coding yields better power efficiency than uncoded DPPM. For 2-DPPM and 4-DPPM, the longer the marker, the higher the power efficiency that can be achieved. On the other hand, there is little improvement with a long marker for 8-DPPM and 16-DPPM.
Keywords :
error correction; optical communication; pulse position modulation; wireless channels; decoder algorithms; deletion errors correction; differential pulse-position modulation; encoder algorithms; insertion errors correction; marker codes; nondispersive channel; power efficiency; wireless infrared communications; Error correction codes; Modulation coding; Optical fiber communication; Pulse modulation; Wireless communication;
Conference_Titel :
Communications, Computers and signal Processing, 2005. PACRIM. 2005 IEEE Pacific Rim Conference on
Print_ISBN :
0-7803-9195-0
DOI :
10.1109/PACRIM.2005.1517255
