Title :
Performance evaluation of L-PPM links using repetition rate coding
Author :
Ozugur, T. ; Naghshineh, Mahmoud ; Kermani, Parviz ; Olsen, C. Michael ; Rezvani, Babak ; Copeland, John A.
Author_Institution :
Commun. Syst. Center, Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
In this paper, we evaluate the performance of infrared communication methods using repetition-rate coding over L-PPM wireless links to provide reliable infrared transmission throughout indoor environments. All receivers adapt the communication data rate by monitoring the channel, and they instruct transmitters to use highest rate if it is possible. Reducing the user data rate by a factor of RR (rate reduction) results in an RR-fold SNR improvement. We analyze how repetition-rate coding improves the capture probability of the infrared modem over L-PPM links. We also discuss the effect of RR-fold transmission in utilization using go-back-N and selective reject ARQ schemes
Keywords :
adaptive codes; automatic repeat request; optical links; optical modulation; optical receivers; pulse position modulation; L-PPM links; RR-fold transmission; capture probability; channel; go-back-N ARQ schemes; indoor environments; infrared communication methods; infrared modem; performance evaluation; receivers; repetition rate coding; selective reject ARQ schemes; transmitters; user data rate; wireless links; Automatic repeat request; Background noise; Error analysis; Indoor environments; Noise reduction; Optical fiber communication; Optical receivers; Radio transmitters; Redundancy; Signal to noise ratio;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1998. The Ninth IEEE International Symposium on
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-4872-9
DOI :
10.1109/PIMRC.1998.734349
