This paper introduces a collisionless wavelength division multiple access protocol for a passive star-coupled photonic network that possesses significant performance and flexibility advantages over alternative approaches. This protocol is compared in terms of relative performance and network architecture to the dynamic time-wavelength division multiaccess (DT-WDMA) protocol proposed in [1] thro...

A new interconnection network for massively parallel computing is introduced. This network is called a Hierarchal Optical Ring INterconnection (HORN). HORN consists of a single-hop, scalable, constant degree, strictly non-blocking, fault-tolerant interconnection topology that utilizes Wavelength Division Multiple Access (WDMA) to provide better utilization of the terahertz (THz) bandwidth o ere...

Optical code-division multiple-access is proposed as a natural solution to achieving asynchronous, high-speed connectivity in a local area network environment. Optical CDMA is shown to be competitive with other networking technologies such as WDMA and TDMA, but has the benefit of more flexibility, simpler protocols, and no need for centralized network control. The limitations of one-dimensional...

All-optical networks are networks for which all data paths remain optical from input to output. We discuss a class of wavelength division multiple access (WDMA) networks that are homogeneous in the sense that each node contains both an input/output port and a switch. We focus on permutation routing problem and first present a lower bound on the number of wavelengths required for permutation rou...

0163-6804/98/$10.00 © 1998 IEEE avelength-division multiplexing (WDM) as a system concept goes back to the early 1970s. At that time, however, it usually only implied the use of two wavelengths, generally one in each of the 1300 nm and 1550 nm windows to enable full duplex transmission. Furthermore, the development of point-to-point links was the main thrust of WDM research throughout the 1970s...

High-precision positioning scheme, an important part of the indoor navigation system, can be implemented using an ultra-wide band (UWB) based ranging system. Recently, solutions for precise positioning in dense multi-path and nonline-of-sight (NLOS) conditions have attracted a lot of attention in literature. On the other hand, it is expected that Waveform Division Multiple Access (WDMA) technol...

This study introduces the scalability problem of many WDMA protocols for ring networks. We present a slotted access protocol and a scalable network architecture suitable for WDM ring metropolitan area networks. Each node is equipped with a pair of tunable transceivers to communicate exploiting all the fiber data wavelengths. Also, each node uses a pair of fixed tuned transceivers to exchange co...

We present the results of computer simulation of a new medium access control (MAC) protocol for a photonic ring network based on a combination of wavelengthand time-division multiple access (WDMA/ TDMA). The simulations show that the proposed protocol offers maximum throughput in excess of 90% of total network capacity, although for delay-sensitive traffic it is necessary to limit the offered t...

Media access protocols that de-emphasize the performance impact of propagation delay, packet processing and switching latency for an optically star-coupled system with pre-allocated WDMA channels are introduced and compared. The channels are pre-allocated to the nodes with this approach, where each node has a home channel that it uses either for all data packet transmission or reception. A home...

Access networks must further advance to address the intensification of the requirements of growing speeds and the usage of Internet applications, and time and wavelength division multiple access (TDMA/WDMA) based passive optical networks (TWDM-PONs) have been widely considered as one of the evolutionary steps of next-generation optical access (NGOA) networks. TWDM-PON combines the flexibility o...