Accession Number : AD1009582


Title :   Average Likelihood Methods of Classification of Code Division Multiple Access (CDMA)


Descriptive Note : Technical Report,01 Nov 2013,30 Nov 2015


Corporate Author : Air Force Research Laboratory/Information Directorate Rome United States


Personal Author(s) : Irizarry,Alfredo V


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1009582.pdf


Report Date : 01 May 2016


Pagination or Media Count : 111


Abstract : This final report summarizes the most significant findings under the in-house effort titled Average Likelihood For CDMA.The effort included refinements to the proposed average likelihood method discussed in AFRL-RI-RS-TR-2014-09-093.The refinements include a Taylors approximation of the log-likelihood function the development of algorithms to extract features, the inclusion of unbalanced CDMA cases and the extension of the average likelihood to complex cases of CDMA. The performance of the classifier is validated by the use of accuracy versus SNR curves. Classification of CDMA under a hypothesis expressed in terms of code length and active number of user is feasible by performing a simple preprocessing stage at the beginning of the classifier.


Descriptors :   Code Division Multiple Access , classification , functions(mathematics)


Distribution Statement : APPROVED FOR PUBLIC RELEASE