Anderson L. Sanches

Learn More
In this paper, we propose a new formalism for traffic transmission over optical code-division multiple-access (OCDMA) network architectures capable of mitigating environmental temperature variation effects in the transmission link. Those environmental effects do play an important role in the overall performance of the network. To carry out this analysis, we(More)
In this paper we present, for the first time, the modelling and performance analysis of packet OCDMA networks based on coherent advanced modulation formats, namely binary and quadrature phase shift keying (BPSK and QPSK). We investigate how each of these advanced modulation formats perform under fast frequency hopping (FFH) encoding. For all cases, we have(More)
In this paper, we provide a performance comparison and analysis between a hybrid 1-D WDM/OCDMA system and a 2-D WHTS OCDMA system. In the hybrid system, OOC is employed as users code sequence of the OCDMA dimension. The simulation results show that the hybrid system presents better performance than the 2-D WHTS OCDMA system, and show also that under a(More)
In this paper, we propose a new Internet protocol (IP) traffic transmission architecture over optical code-division multiple-access (OCDMA) network capable of providing multiservice, multirate transmissions. The new architecture is independent of the OCDMA scheme employed. The main idea is to use multi-weight multi-length optical orthogonal code (MWML-OOC)(More)
This paper introduces a new application of fuzzy logic control (FLC) for the improvement of traffic performance over optical code-division multiple-access (OCDMA) networks. This application focuses on the mitigation of environmental temperature variation effects that occur in the transmission links that impact the expected magnitude of the autocorrelation(More)
This paper presents a comparative study between the Mamdani and Sugeno fuzzy inference systems (FIS) for intelligent traffic transmission over optical code-division multiple-access (OCDMA) network architectures. This FIS is capable of mitigating environmental temperature variation effects in the transmission link which are known to play an important role in(More)
In this paper, we propose and evaluate the performance of a new scheme for multirate optical code-division multiple-access (OCDMA) networks based on coherent advanced modulation formats, namely binary and quadrature phase shift keying (BPSK and QPSK). The proposed scheme employs BPSK and QPSK modulation formats for low and high rate transmission users,(More)
In this paper, the performance of optical fast frequency hopping code-division multiple-access (FFH-OCDMA) network based on binary phase shift keying (BPSK) modulation format under both ideal and non-ideal encoding scheme scenarios is addressed for the first time. The results show that the BPSK modulation format increases significantly the(More)
In this paper, we propose a new throughput expression for multirate, multiclass slotted-ALOHA optical fast frequency hopping code-division multiple-access (OFFH-CDMA) packet networks considering a Poisson distribution for packet composite arrivals. We analyze the packet throughput performance of a three-class OFFH-CDMA network, where multirate transmissions(More)