Title :
Probability of error versus SNR for random data in an AC-coupled baseband receiver
Author :
Rice, Bart F. ; Wilhoyte, Michael E.
Author_Institution :
Lockheed Missiles & Space Co., Sunnyvale, CA, USA
Abstract :
Long runs of one and zeros input to an AC-coupled baseband communications system can significantly degrade the signal level and therefore increase the bit error rate. Suitable coding or bit-stuffing can ensure that long run-lengths do not occur, but the data rate is decreased as a consequence. In this paper, the use of a randomizer as an alternative to coding is investigated. Assuming exponential decay in signal level with respect to run length, probability of bit error is derived as a function of input SNR and probability of run length. The results are compared to the theoretical best case. It is concluded that a randomizer results in very little degradation for commonly used receiver constants
Keywords :
filtering and prediction theory; optical links; optical receivers; signal processing; AC-coupled baseband communications system; AC-coupled baseband receiver; bit error rate; bit-stuffing; coding; error probability; exponential decay; optical fibre transmission lines; random data; randomizer; run length; signal level; Additive white noise; Baseband; Costs; Filters; Interference; Redundancy; Rockets; Signal to noise ratio; Statistics; Transmitters;
Conference_Titel :
Signals, Systems and Computers, 1992. 1992 Conference Record of The Twenty-Sixth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
0-8186-3160-0
DOI :
10.1109/ACSSC.1992.269214
