A robust WDM communication system

Sauer,; Jayasummana,; Radehaus,; Temkin,

doi:10.1109/leos.1994.586336

Cited by 8 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A demonstration prototype has been implemented and several protocols have been proposed for Robust WDM networks [14][15][16][17]. Robust WDM networks use an access protocol that can adapt to large variations of wavelengths of lasers over both limited and extended periods of time.…”

Section: Introductionmentioning

confidence: 99%

“…Robust WDM network is an architecture that relaxes manufacturing and operating wavelength tolerances [6][7][8][9][10][11][12][13] and as a result reduces the cost to levels acceptable for LAN environments. A demonstration prototype has been implemented and several protocols have been proposed for Robust WDM networks [14][15][16][17]. Robust WDM networks use an access protocol that can adapt to large variations of wavelengths of lasers over both limited and extended periods of time.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Performance analysis of Robust WDM fast circuit‐switched networks with token passing in control channel

Abd-Elmalak

Vaishnav

Jayasumana

2002

Int J Communication

View full text Add to dashboard Cite

SUMMARYWDM networks depend on predetermined, fixed wavelength channels, requiring highly stable lasers and tunable filters. Robust WDM networks, based on dynamically selected wavelengths, relax manufacturing and operating wavelength tolerance requirements leading to low-cost implementations. A node dynamically selects a currently unused wavelength for communication, and uses it for a limited period of time for communication with a destination, thus allowing the network to tolerate wavelength variation with time. A performance model is presented for Robust WDM networks in which the right to establish WDM connections is arbitrated periodically by a control channel based on token passing. Comparison with simulation results indicates the model's ability to predict the network performance accurately.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance analysis of Robust WDM fast circuit‐switched networks with token passing in control channel

Abd-Elmalak

Vaishnav

Jayasumana

2002

Int J Communication

View full text Add to dashboard Cite

show abstract

“…The network architecture, as it is illustrated in Figure 1, is based on a passive star, where each node has an array of lasers, one of which is dynamically selected at the transmission time [7,11,12,13].…”

Section: Robust Wdm Networkmentioning

confidence: 99%

“…Although the use of the reservation interval, during which no WDM transmissions take place, decreases the performance of the network, this protocol and the implementation have many advantages over the traditional WDM techniques in the areas of robustness and cost effectiveness. The reasoning for using reservation intervals is described in [7,11,12].…”

Section: Robust Wdm Networkmentioning

confidence: 99%

See 1 more Smart Citation

Performance of a robust WDM network with token based reservations and a limited number of lasers at a station

Abd-Elmalak

Vaishnav²,

Jayasumana³

Proceedings of LCN - 21st Annual Conference on Local Computer Networks

View full text Add to dashboard Cite

The perfomnce of a symmetric Robust WDM network that uses token-passing on the signaling channel and has a limited number of lasers per station is modeled and analyzed for circuit-switched connections. Robust WDM networks use a reservation interval during which all stations cease their WDM transmissions so that the station holding the token may establish a connection with its intended destination. The network performance is analyzed for different network parameters. Simulation results are used to evaluate the accuracy of the model.In recent years, wavelength division multiplexing (WDM) has emerged as the most promising solution to satisfy the increasing need for larger bandwidth [9]. WDM exploits the enormous capacity of the single mode fiber by dividing the available wavelength into smaller, more manageable, multiple wavelengths to carry out more than one transmissions at a time; thereby offering a potential aggregate throughput in Terabits per second range. It has intrigued a large number of researchers in the industry and academia resulting in prototypes such as Rainbow4 & II [lo], STARNET [4], and LIGHTNING [5].WDM architectures are based on transmitters and receivers that can be precisely tuned to predetermined, fixed wavelengths. wavelength of a laser shifts with temperature and the output power of the laser can also change even though a constant input current is applied. Wavelength and power stabilization of laser transmitters is a very critical and expensive task. For this reason the commercial exploitation of WDM systems has not made great progress. This is especially true for short-haul (SH) local area network (LAN) environment where the cost of the fiber and its installation would be considerably less in comparison to the cost of suitable transmitter sources.Robust WDM network, a network being implemented at Colorado State University and University of Colorado, is an approach that allows relaxed manufacturing and operating wavelength tolerances [ 11. Robust WDM networks can be implemented based on several different medium access protocols [7]. This paper evaluates a reservation type, token based medium access protocol for a Robust WDM network with circuit-switched connections.In [23, we modeled and analyzed a symmetric Robust WDM circuit-switched network where each station can access all the c channels of the network. In this paper, we investigate a more realistic case where each station has only a limited number of lasers (c,) and hence can access only c, channels that are randomly spread over the total network channels (c).Section 2 provides a description of Robust WDM network and the token based MAC protocol, Section 3 details the performance model, Section 4 discusses the test results and its comparison with the simulation results, and Section 5 concludes the paper.

show abstract

Modeling and performance analysis of a symmetric fast-circuit switched robust-WDM LAN with the AR/LTP protocol

El-Bawab¹,

Jayasumana

1999

J. Lightwave Technol.

View full text Add to dashboard Cite

A robust WDM communication system

Cited by 8 publications

References 0 publications

Performance analysis of Robust WDM fast circuit‐switched networks with token passing in control channel

Performance analysis of Robust WDM fast circuit‐switched networks with token passing in control channel

Performance of a robust WDM network with token based reservations and a limited number of lasers at a station

Modeling and performance analysis of a symmetric fast-circuit switched robust-WDM LAN with the AR/LTP protocol

Contact Info

Product

Resources

About