Title :
Rate-adaptive transmission schemes in the context of runlength-limited-codes for optical wireless communications
Author :
Garrido-Balsells, J.M. ; García-Zambrana, A. ; Puerta-Notario, A.
Author_Institution :
Dept. of Commun. Eng., Malaga Univ., Spain
fDate :
9/1/2005 12:00:00 AM
Abstract :
In this letter, the performance evaluation of rate-adaptive transmission schemes for indoor unguided optical links has been analyzed in the context of runlength-limited (RLL) sequences. Here, the superiority of on-off keying (OOK) formats with runlength constraints based on silence periods has been corroborated in terms of code efficiency and peak-to-average optical power ratio (PAOPR) compared to a hybrid HHH (1,13) code, variable-rate signalling technique obtained by modifying the RLL (1,13) code specified in the very fast infrared (VFIr) standard by the infrared data association (IrDA). Additionally, the use of very simple decoding schemes based on Boolean logic has been proposed.
Keywords :
Boolean functions; amplitude shift keying; decoding; indoor radio; optical communication; optical links; performance evaluation; runlength codes; telecommunication signalling; telecommunication standards; Boolean logic; IrDA; OOK; RLL; VFIr; decoding scheme; indoor optical link; infrared data association; on-off keying format; optical wireless communications; performance evaluation; rate-adaptive transmission scheme; runlength-limited sequences; variable-rate signalling technique; very fast infrared standard; Code standards; Context; High speed optical techniques; Optical fiber communication; Optical filters; Optical modulation; Optical sensors; Peak to average power ratio; Performance analysis; Wireless communication;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2005.1506703
