Rowel Telecom - 3g,4g,5g

Rowel Telecom - 3g,4g,5g Wireless Technologies(3G,4G,5G) and Drive Test,RF Testing,Post Processing and Optimisation Protocol Stack Testing and Development

The Future Generation Internet Technology is LiFi(Light Fidelity).Advantage LiFi over WiFi are: Li- Fi uses light rather...
24/12/2015

The Future Generation Internet Technology is LiFi(Light Fidelity).

Advantage LiFi over WiFi are:

Li- Fi uses light rather than radio frequency signals so are intolerant to disturbances. VLC could be used safely in aircraft without affecting airlines signals. Integrated into medical devices and in hospitals as this technology doesn’t deal with radio waves, so it can easily be used in all such places where Bluetooth, infrared, Wi-Fi and internet are broadly in use. Under water in sea Wi-Fi does not work at all but light can be used and hence undersea explorations are good to go now with much ease. There are billions of bulbs worldwide which just need to be replaced with LED’s to transmit data. Security is a side benefit of using light for data transfer as it does not pe*****te through walls. On highways for traffic control applications like where Cars can have LED based headlights, LED based backlights, and they can communicate with each other and prevent accidents. Using this Technology worldwide every street lamp would be a free data access point. The issues of the shortage of radio frequency bandwidth may be sorted out by Li-Fi.

Optical Transport Network (OTN) The new Optical Transport Network (OTN) layer evolved over the layer-1 DWDM network for ...
22/12/2015

Optical Transport Network (OTN)

The new Optical Transport Network (OTN) layer evolved over the layer-1 DWDM network for enabling more efficient convergence of traditional SONET/SDH and new data services. The OTN layer is designed to for highly effective mapping of different protocols and rates into the same 10G or 100G uplink pipe providing high bandwidth capabilities in simpler transparent manner at comparatively low cost. Furthermore, OTN infrastructure enables transport over longer distances with less regeneration sites by utilizing Forward Error Correction (FEC) mechanism embedded within the OTN layer. Thus, the OTN layer forms the most efficient and cost effective Multi Service Provisioning Platform (MSPP) over WDM infrastructure.



Advantages of Optical Transport Network (OTN)



While using OTN, layer any protocol carried over the network has the same performance monitoring information, whether it is SONET/SDH, Ethernet or Fibre channel. The OTN convergence layer is a much less complex technology for transport applications than SONET/SDH, which is reflected in the much simpler clocking scheme for instance. Each network layer that a carrier must manage creates a substantial amount of operating expense. In some carriers, an entire organizational units exist are dedicated to managing each network layer. Since operations constitute 30-40% of carriers’ annual expenses, they must minimize the number of different layers in their networks whenever possible.

The Optical Transport Network (OTN) layer is deterministic in the latency performance, in the service connection path as well as in the deterministic guarantee bandwidth for each of the service.
The OTN signal incorporates overhead optimized for efficient direct mapping for LAN, SONET/SDH and SAN signals and other lower rate client signals over carrier WDM networks.

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