Simulation Tools For Broadband Passive Optical Networks

WHAT IS BROADBAND

In telecommunications, broadband is wide bandwidth data transmission which transports multiple signals at a wide range of frequencies and Internet traffic types, that enables messages to be sent simultaneously, used in fast internet connections

Broadband is the transmission of wide bandwidth data over a high speed internet connection.

So what is broadband? According to the FCC, the definition of broadband internet is a minimum of 25 Mbps download and 3 Mbps upload speeds. Broadband provides high speed internet access via multiple types of technologies including fiber optics, wireless, cable, DSL and satellite.

Types of broadband connections

Broadband internet is delivered through several different technologies with varying availability based on location. Which broadband internet service you choose will depend on your needs, preferences, cost and where you live.

Fiber optic


Fiber optics carry lots of data using pulses of light through strands of fiber at the fastest speeds.

Fios is the most reliable fiber-optic network available and offers Fios Gigabit Connection with blistering speeds up to 940/880 Mbps.

Wireless


Wireless broadband (Wi-Fi) connects a home or business to the internet using radio signals instead of cables.

Verizon’s new 5G Home Internet is bringing impressive wireless speeds around 300 Mbps to homes in select cities.

DSL


Digital Subscriber Line (DSL) transmits data over traditional copper phone lines.

Verizon High Speed Internet offers plans up to 15 Mbps with a dedicated line from our central office to your home on a network that’s 99.9% reliable.

Cable & Satellite


Cable delivers high speed internet over the same coaxial cables that deliver pictures and sound to your TV set.

On the other hand, internet connectivity via satellite is provided by communication satellites and is often the best option in rural areas.

What broadband speed do I need?

Streaming HD videos, gaming and downloading large files eat up the most bandwidth. To achieve a virtually seamless experience with less lag, you may want to consider speed plans 100 Mbps and above. For all other activities like streaming music, surfing and video conferencing — anything above 25 Mbps should be enough. It all depends on how patient you are with potential buffering and slightly slower speeds when others at home are competing for bandwidth at the same time for their own activities.

Not sure how fast your broadband is? Use our speed test tool to see how your current provider compares to Fios.

Simulation Tools For Broadband Passive Optical Networks

With the emerging applications and needs of ever-increasing bandwidth, it is anticipated that the next-generation broadband passive optical network with much higher bandwidth is a natural path forward to satisfy these demands. For network operators, it is therefore interesting and profitable to develop this scenario of valuable access networks. Broadband passive optical networks utilize the optical transmission medium, and for increasing transmission rates of broadband applications and services, it is necessary to characterize and investigate some specific features of new optical signal processing techniques at the signal transmission. Furthermore, there also exist various architectures and optical infrastructures for possible developing of broadband passive optical networks. Also in this case, they must be specified with emphasis on their characteristics and possible implementations in real access networks. , simulation tools for investigating new optical signal processing techniques in the optical transmission medium and for analyzing considered optical infrastructures in broadband passive optical networks are presented together with possibilities of their practical implementations in real passive optical networks.

. The outgoing signal from the CWDM Multiplexer block goes into the SMF block that simulates the optical transmission path with negative environmental effects on transmitted optical signals like dispersions, an attenuation and non-linear negative effects. The CWDM signal transmission’s simulation is performed in MATLAB Simulink 2014 and consists from implementation of four wavelength channels using the CWDM technique to the simulation model of negative environmental influences at the signal transmission in the optical transmission path In our simulation, it is assumed the fiber length of L = 80 km and 4 different wavelengths λ 1λ 4. Parameters of the optical singlemode fiber are set up particularly for each wavelength. . particular spectra of the second simulated channel (λ 2 = 1551 nm) for individual negative environmental influences are presented. In the simulation model of the CWDM optical transmission path, following negative influences considered for the optical transmission medium included.

 The DFB laser model must be based on measured parameters in order to predict its corresponding system performance. In general, the intent of creating an optical transmission system model is important for testing optical modulation and/or coding techniques, noise thresholds, etc.  The complete numerical approach used in a simulation model for the DFB laser is presented, as improvement in existing optical transmission system developed before.

 The HPON Network Configurator allows comparing of configuration possibilities for various future hybrid passive optical networks. The created HPON Network Configurator  evaluates real possibilities for a consistent transition from TDM-PON to HPON networks based on various specific technical parameters -a network capacity from a viewpoint of the physical layer, a number of TDM and WDM network subscribers, a number of exploited wavelength multiplexing types, a growth of the channel capacity by connecting of new subscribers and other feasibilities. .

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