Fast Decoder for Overloaded Uniquely Decodable Synchronous Optical CDMA

Autor:	Kulhandjian, Michel, Kulhandjian, Hovannes, D'Amours, Claude, Yanikomeroglu, Halim, Khachatrian, Gurgen
Rok vydání:	2019
Předmět:	Computer Science - Information Theory
Druh dokumentu:	Working Paper
Popis:	In this paper, we propose a fast decoder algorithm for uniquely decodable (errorless) code sets for overloaded synchronous optical code-division multiple-access (O-CDMA) systems. The proposed decoder is designed in a such a way that the users can uniquely recover the information bits with a very simple decoder, which uses only a few comparisons. Compared to maximum-likelihood (ML) decoder, which has a high computational complexity for even moderate code lengths, the proposed decoder has much lower computational complexity. Simulation results in terms of bit error rate (BER) demonstrate that the performance of the proposed decoder for a given BER requires only 1-2 dB higher signal-to-noise ratio (SNR) than the ML decoder. Comment: arXiv admin note: substantial text overlap with arXiv:1806.03958
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1902.09525 Zobrazit plný text záznamu View this record from Arxiv