Title :
Monotonicity of Likelihood Ratio of MAP Correlation Detection for OCDMA Communication
Author :
Kok, Shaw Wei ; Zhang, Ying ; Wen, Changyun ; Soh, Yeng Chai
Author_Institution :
Singapore Inst. of Manuf. Technol., Singapore
fDate :
7/1/2007 12:00:00 AM
Abstract :
In this paper, the monotonicity of the likelihood ratio used in the optimal correlation detection is established for optical code division multiple-access (OCDMA). The monotonicity property not only guarantees the optimality of the detection, it also enables us to calculate the bit-error-rate bounds for OCDMA in the presence of uncertain a priori probabilities.
Keywords :
code division multiple access; correlation methods; error statistics; maximum likelihood estimation; optical communication; MAP correlation detection; OCDMA communication; bit error rate; likelihood ratio; monotonicity property; optical code division multiple-access; optimal correlation detection; Bandwidth; Bit error rate; Gunshot detection systems; Interference; Multiaccess communication; Optical detectors; Optical fiber communication; Optical noise; Signal detection; Wireless communication; Chip-level detection; likelihood ratio; optical CDMA; optimal detection;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2007.900599
