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Optical packet switch architectures full report


Posted by: computer science technology
Created at: Wednesday 20th of January 2010 01:07:27 AM
Last Edited Or Replied at :Wednesday 20th of January 2010 01:07:27 AM
what is optical packet switching , optical packet switch architecture, optical packet switching a reality check , optical packet switching network ppt, optical packet switching network , Optical packet switch architectures full report, Optical packet switch architectures report , Optical packet switch architectures, report , full, architectures , switch, packet , Optical, optical packet switch architectures ppt , optical swtching ece, optical burst change switching seminar report ,
ut port is connected with at least one ODL in each of N ODL sets. The TWC in the first stage decides to which ODL an optical packet will be sent. The second stage is used for switching optical packets to the correct output ports. Through the de multiplexer in the second stage, each ODL is connected to each output port. The TWC decides to which output port an optical will be sent.

Logically the first stage can be divided in to two parts: distribution and input buffer. The distribution part distributes optical packets from the same input to different input buffers. Note that if we remove th..................[:=> Show Contents <=:]



RATE DELAY GUARANTEES PROVIDED BY CLOSE PACKET SWITCHES WITH LOAD BALANCING-NETWORK


Posted by: electronics seminars
Created at: Tuesday 12th of January 2010 07:46:40 PM
Last Edited Or Replied at :Thursday 05th of May 2011 04:48:59 AM
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etwork capacity problem under a given network lifetime requirement. Specifically, for a wireless sensor network where each node is provisioned with an initial energy, if all nodes are required to live up to a certain lifetime criterion, Since the objective of maximizing the sum of rates of all the nodes in the network can lead to a severe bias in rate allocation among the nodes, we advocate the use of lexicographical max-min (LMM) rate allocation. To calculate the LMM rate allocation vector, we develop a polynomial-time algorithm by exploiting the parametric analysis (PA) technique from linear..................[:=> Show Contents <=:]



Optical packet switch architectures seminar report


Posted by: electronics seminars
Created at: Tuesday 05th of January 2010 03:47:54 AM
Last Edited Or Replied at :Tuesday 05th of January 2010 03:47:54 AM
seminar , Optical packet switch architectures, Optical packet switch architectures seminar report , optical packet switching network, optical packet switch using optsim , optical packet switch architecture, optical packet switch from endicott , optical packet switch network, optical packet switch , optical packet switching, optical packet buffering , optical packet networks, hybrid optical packet infrastructure , optical packet edge, Optical packet , switch, packet , Optical,
spatially oriented beams. Lens L2 focuses this beam in to the appropriate photo detectors. A large number of channels may, thus be combined or separated with such angularly dispersive multiplexing elements. Insertion losses are in the 1 to 3 dBrange and crosstalk level is between 20 and 30 dB.

2. The filter type multiplexing devices:
This type may be used both as multiplexers and demultiplexers. The device has a flat glass substrate upon which multiple layers of different films are deposited for wavelength selectivity. This film work like a filter in the sense that each film is transpa..................[:=> Show Contents <=:]



Optical packet switch architectures Download Full Report And Abstract


Posted by: computer science crazy
Created at: Saturday 21st of February 2009 02:00:19 PM
Last Edited Or Replied at :Thursday 05th of January 2012 05:12:59 AM
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by the control unit electronically. The payload remains an optical signal throughout the switch. After the payload passes through the switching..................[:=> Show Contents <=:]



Optical packet switch architectures


Posted by: computer science crazy
Created at: Monday 22nd of September 2008 02:21:15 PM
Last Edited Or Replied at :Monday 22nd of September 2008 02:21:15 PM
architectures , switch, packet , Optical,
consists of three parts; optical packet encoder, space switch, and optical packet buffer. The optical packet buffer works as follows. For each incoming fiber link, three is an optical demultiplexer, which divides the incoming optical signal to different wavelengths. Each wavelength is fed to a different tunable wavelength converter ( TWC), which converts the wave length of the optical packet to a wavelength that is free at the destination optical output fiber. Then, through the space switch fabric, the optical packet can be switched to any of the N out put optical buffers.

Specifically the..................[:=> Show Contents <=:]



Optical packet switch architectures


Posted by: computer science crazy
Created at: Sunday 21st of September 2008 01:16:13 AM
Last Edited Or Replied at :Sunday 21st of September 2008 01:16:13 AM
architectures , switch, packet , Optical,
f the N out put optical buffers.

Specifically the out put of a TWC is fed to a splitter, which distributes the same signal to N different out put fibbers, one per out put fibber. The signal on each of these out put fibbers goes through another splitter, which distributes this in to d+1 different out put fibbers, and each out put is connected through an optical gate to one of the ODLs of the destination out put buffer. The optical packet is forwarded to an ODL by appropriately keeping one optical gate open and closing the rest. The information regarding to which wavelength of an incoming pa..................[:=> Show Contents <=:]



Wireless Application Protocol


Posted by: computer science crazy
Created at: Sunday 21st of September 2008 12:37:02 AM
Last Edited Or Replied at :Thursday 29th of November 2012 02:58:17 AM
Protocol, Application , Wireless, www seminar projects com forum electrical seminar topics , wireless application protocol, wap layer architecture ppt , wap ppt, mobile middleware for application development , seminar on wireless application protocol, seminar topics on wireless protocols , seminar report on wireless application protocol2, wirless web application security protocal , wap difference between cnf ind primitive meaning,
lue and utility of the World Wide Web architecture, the WAP forum has chosen to align its technology closely with the Internet and the Web. The WAP specification extends and leverages existing technologies, such as IP, HTTP, XML, SSL, URLs, scripting and other content formats. Ericsson, Motorola, Nokia and Unwired Planet founded the WAP Forum in June, 1997.
Since then, it has experienced impressive membership growth with members joining from the ranks of the world's premiere wireless service providers, handset manufacturers, infrastructure providers, and software developers. WAP Forum members..................[:=> Show Contents <=:]



LED wireless


Posted by: computer science crazy
Created at: Sunday 21st of September 2008 12:34:43 AM
Last Edited Or Replied at :Wednesday 14th of March 2012 01:42:59 AM
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ll-color outdoors LED displays with diverse industrial applications.

The novel idea of this article is to modulate light waves from visible LEDs for communication purposes. This concurrent use of visible LEDs for simultaneous signaling and communication, called iLight, leads to many new and interesting applications and is based on the idea of fast switching of LEDs and the modulation visible-light waves for free-space communications. The feasibility of such approach has been examined and hardware has been implemented with experimental results. The implementation of an optical link has been ..................[:=> Show Contents <=:]



High Performance DSP Architectures


Posted by: computer science crazy
Created at: Sunday 21st of September 2008 12:12:14 AM
Last Edited Or Replied at :Sunday 21st of September 2008 12:12:14 AM
Architectures, Performance , High,
olve heavy use of multiply-accumulate operations. Originally, microprocessors implemented multiplications by a series of shift and add operations, each of which consumed one or more clock cycles. As might be expected, faster multiplication hardware yields faster performance in many DSP algorithms, and for this reason all modern DSP processors include at least one dedicated single- cycle multiplier or combined multiply-accumulate (MAC) unit.

Multiple Execution Units
DSP applications typically have very high computational requirements in comparison to other types of computing tasks, since th..................[:=> Show Contents <=:]



Optical Burst Switching


Posted by: computer science crazy
Created at: Sunday 21st of September 2008 12:10:29 AM
Last Edited Or Replied at :Friday 02nd of March 2012 10:36:34 PM
Switching , Burst, Optical , powered by mybb obs, optical burst switching ,
o account the limitations of current all optical technology In OBS the user data is collected at the edge of the network, sorted based on destination address,and grouped into variable sized bursts Prior to transmitting a burst, a control packet is created and immediately send toward the destination in order to setup a buffer less optical path for its corresponding burst After an offset delay time, the data burst itself is transmitted without waiting for positive acknowledgement from the destination node the OBS framework has been widely studied in the past few years because it achieves high tr..................[:=> Show Contents <=:]



Optical Switching


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 11:58:28 PM
Last Edited Or Replied at :Friday 06th of August 2010 02:21:13 PM
Switching, Optical , seminar optical switching, optical switching , presentation on optical switching,
ity Dense Wavelength Division Multiplexing (DWDM) links as well as gain a competitive advantage for provision of new band width hungry services. However, in an optically switched network the challenge lies in overcoming signal impairment and network related parameters. Let us discuss the present status, advantages and challenges and future trends in optical switches.

A fiber consists of a glass core and a surrounding layer called the cladding. The core and cladding have carefully chosen indices of refraction to ensure that the photos propagating in the core are always reflected at the inte..................[:=> Show Contents <=:]



Optical Packet Switching Network


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 11:55:58 PM
Last Edited Or Replied at :Saturday 20th of September 2008 11:55:58 PM
Network, Switching , Packet, Optical ,
ers can be implemented as optical signal processors for packet switching, in terms of their processing functions, wavele..................[:=> Show Contents <=:]



Simputer


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 11:49:10 PM
Last Edited Or Replied at :Wednesday 19th of March 2014 03:44:32 PM
Simputer, architecture of simputers , simputer architecture, sweet simputer means , the simputer acess device for the masses, simputer pdf , schlumberger payflex reference manual, soft keyboard , phonetics to speech engine used in simputer, how a simputer is used as a smart caed reader , simputer, plastic memory ppp ,
) has been created to provide a uniform experience to users and to allow rapid development of solution on any platform.
The Simputer proves that illiteracy is no longer a barrier in handling a computer. The Simputer through its smart card feature allows for personal information management at the individual level for a unlimited number of users. Applications in diverse sectors can be made possible at an affordable price.

A rapid growth of knowledge can only happen in an environment which admits free exchange of thought of information. Indeed, nothing else can explain the astounding progress..................[:=> Show Contents <=:]



Cellular Digital Packet Data


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 11:36:29 PM
Last Edited Or Replied at :Tuesday 27th of November 2012 11:54:02 PM
Data , Packet, Digital , Cellular, cellular digital , in ppt future enhancement of cdpd, cellular digital packet , what is cellular digital packet data and its working, cellular digital packet data ,
g to be a hot digital enhancement to the existing phone network. CDPD transmits digital packet data at 19.2 Kbps, using idle times between cellular voice calls on the cellular telephone network.
CDPD technology represent a way for law enforcement agencies to improve how they manage their communications and information systems. For over a decade, agencies around the world have been experimenting with placing Mobile Data Terminals(MDT) in their vehicles to enhance officer safety and efficiency.

Early MDT's transmits their information using radio modems. In this case data could be lost in tr..................[:=> Show Contents <=:]



Simputer


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 11:49:10 PM
Last Edited Or Replied at :Wednesday 19th of March 2014 03:44:32 PM
Simputer , architecture of simputers, simputer architecture , sweet simputer means, the simputer acess device for the masses , simputer pdf, schlumberger payflex reference manual , soft keyboard, phonetics to speech engine used in simputer , how a simputer is used as a smart caed reader, simputer , plastic memory ppp,
stounding progress of science in the last three hundred years. Technology has unfortunately not seen this freedom two often. Several rounds of intends discussions among the trustees convinced them that the only way to break out the current absurdities is to foster a spirit of co-operation in inventing new technologies. The common mistake of treating to-operation as a synonym of charity poses its own challenges. The Simputer Licensing Framework is the Trust's responds to these challenges.

What is Simputer?
A Simputer is a multilingual, mass access, low cost, portable alternative to PC's by ..................[:=> Show Contents <=:]



Cellular Digital Packet Data


Posted by: computer science crazy
Created at: Saturday 20th of September 2008 11:36:29 PM
Last Edited Or Replied at :Tuesday 27th of November 2012 11:54:02 PM
Data, Packet , Digital, Cellular , cellular digital, in ppt future enhancement of cdpd , cellular digital packet, what is cellular digital packet data and its working , cellular digital packet data,
igital packet data (CDPD) and cellular switched-circuit data (CSCD). Each has distinct advantages depending on the type of application, amount of data to send or receive, and geographic coverage needs...................[:=> Show Contents <=:]



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