This paper describes the network architecture and provides a performance analysis of a passive optical network named SONATA, which has been proposed and will be demonstrated in the context of the European Union ACTS Program. In this nation-wide all-optical network, end-terminals access a single passive routing node via PONs using a TDMA/WDMA access scheme based on slot reservations. The central...

There are some common network control issues in IP over WDM(IP/ WDM) which includes network addressing, neighborhood discovery, routing behavior, connection setup and tear down, signaling mechanism, network access control and IP/ WDM protection and restoration. Among them network addressing and restoration are two major research area. In this paper these two issues have been discussed. This pap...

This paper investigates the performance of media access protocols based on on-line scheduling for an optically connected star-coupled system with Wavelength Division Multiple Access channels. Hybrid access protocols combining reservation and pre-allocation of receiver channels have been recently proposed. Transmission consisted of a reservation phase followed by a data phase. Each node was allo...

We propose and demonstrate a 3 × full multiple-input multiple-output (MIMO) fiber–wireless system in the W-band with wavelength-division multiplexing (WDM) polarization-division (PDM) radio-over-fiber (RoF) transmission capability. The is realized using two highly stable RoF links based on optical self-heterodyne method PDM one of links. experimentally confirm satisfactory performances for MIMO...

In molecular communication, two types of multiple access have been studied: time division and molecule division. In this work, we consider code division multiple access. However, unlike code division multiple access that has been used for electromagnetic signals, we investigate optical code division multiple access: since molecular signals have the same non-negativity feature as optical signals...

Recently, blind multi-user detection has become an important topic in code division multiple access (CDMA) systems. Direct-Sequence Spread Spectrum (DSSS) signals are well-known due to their low probability of detection, and secure communication. In this article, the problem of blind multi-user detection is studied in variable processing gain direct-sequence code division multiple access (VPG D...