Advantages
The first benefit is that you don’t have to tangle yourself in those noodle strip wires and cables. You just insert the us dongle in the USB port and download the wallpapers or ring tones or the games to your mobile.
It is simple & easy to use. You just need to be in the range of 10-15 meter distance from other device, so that your devices get connected by Bluetooth.
It is safe to use. The devices with Bluetooth exchange the authentication details and get connected automatically.
The technology also supports the VOIP technology hence you can talk to your friends also. When you are using the USB adapter on your personal computer, then you are in a way using the computer and the mobile technologies together.
Around 8 devices can connect within the piconet or personal area network formed by the Bluetooth at a time.
You can transfer the games, ring tones, songs, text messages, and files among the connected devices in the piconet at the speed of 1-2 Mbps.
When you connect the Bluetooth USB adapter to your computer you make your computer Bluetooth enable. That means your computer can now exchange the authentication code with other Bluetooth enabled devices in the short range of the piconet and get connected wirelessly. Now you can coordinate the contacts on your desktop or print the sheets or transfer files.
Disadvantages
Although the connectivity is affected if there are more devices within the piconet or there are any changes in the environment, but the advantages out power the demerits.
WUSB in the Future
The first Wireless USB implementations will likely be in the form of discrete silicon that will be introduced in a number of form factors. These may include add – in cards and dongles along with embedded solutions to support the technology’s introduction and subsequent rapid ramp up.
But the wireless future will arrive once WUSB, along with the common ultra wideband platform, becomes a standard part of every processor and chipset and is integrated in CMOS silicon.
One potential hurdle is making sure the technology is easy to use, implementations of Bluetooth were notoriously difficult for people who weren’t tech-savvy, although things have improved quite a bit. USB cables, however, couldn’t be much easier to use.
“The goal is to get easy to us but at the same time we need to maintain security,” he said. This will require additional authentication steps to ensure that only authorized devices can associate with a host device.
About a balanced design
PCI latencies and PCI peripherals behavior are definitely factors to consider in a USB capable system. When USB peripherals are used that support large isochronous packages, heavy USB workloads are present. The system designer must consider the use of well behaved PCI devices, especially PCI graphic accelerators, which must not over use the PCI retry mechanism, affecting USB pipes.
There are a number of possible architectural changes that could be applied to improve the current chip-set design and system specifications. These changes alone could greatly improve the robustness of the system, but will not be sufficient to protect against an unbalanced PCI device. It is even possible to define more drastic steps to enforce a “good neighbor” policy; however, these steps increase restrictions, possibly curtailing designers’ freedom when choosing more cost-effective peripheral implementations.
Finally, it is for us evident that the best solution still resides on the hands of the peripheral designers. A correctly balanced design should still be capable of performing while allowing other devices and busses to properly operated in the system.
Further Work of usb
At the time the authors are completing this document new and existing technologies are emerging. The Accelerated Graphic port or AGP, is becoming the graphic accelerator standard. The AGP bus already de-couples the graphic accelerator from the PCI bus and adds specific functionality to support pipeline mode of operation. At the present time the authors have not engaged in a study to determine the susceptibility or lack thereof this new architecture to USB latencies. Such investigation is certainly material of much work, like the present.
Also, the IEEE 1394-1995 standard is furthering streaming capabilities in the PC architecture. As in the case of USB, 1394 is susceptible to nuances of PCI peripherals operation. While finishing the draft of this document, we were pleased to observe that techniques similar to this document recommendations are been used in the definition of the 1394 link interface in future generations of south bridge designs.
The first benefit is that you don’t have to tangle yourself in those noodle strip wires and cables. You just insert the us dongle in the USB port and download the wallpapers or ring tones or the games to your mobile.
It is simple & easy to use. You just need to be in the range of 10-15 meter distance from other device, so that your devices get connected by Bluetooth.
It is safe to use. The devices with Bluetooth exchange the authentication details and get connected automatically.
The technology also supports the VOIP technology hence you can talk to your friends also. When you are using the USB adapter on your personal computer, then you are in a way using the computer and the mobile technologies together.
Around 8 devices can connect within the piconet or personal area network formed by the Bluetooth at a time.
You can transfer the games, ring tones, songs, text messages, and files among the connected devices in the piconet at the speed of 1-2 Mbps.
When you connect the Bluetooth USB adapter to your computer you make your computer Bluetooth enable. That means your computer can now exchange the authentication code with other Bluetooth enabled devices in the short range of the piconet and get connected wirelessly. Now you can coordinate the contacts on your desktop or print the sheets or transfer files.
Disadvantages
Although the connectivity is affected if there are more devices within the piconet or there are any changes in the environment, but the advantages out power the demerits.
WUSB in the Future
The first Wireless USB implementations will likely be in the form of discrete silicon that will be introduced in a number of form factors. These may include add – in cards and dongles along with embedded solutions to support the technology’s introduction and subsequent rapid ramp up.
But the wireless future will arrive once WUSB, along with the common ultra wideband platform, becomes a standard part of every processor and chipset and is integrated in CMOS silicon.
One potential hurdle is making sure the technology is easy to use, implementations of Bluetooth were notoriously difficult for people who weren’t tech-savvy, although things have improved quite a bit. USB cables, however, couldn’t be much easier to use.
“The goal is to get easy to us but at the same time we need to maintain security,” he said. This will require additional authentication steps to ensure that only authorized devices can associate with a host device.
About a balanced design
PCI latencies and PCI peripherals behavior are definitely factors to consider in a USB capable system. When USB peripherals are used that support large isochronous packages, heavy USB workloads are present. The system designer must consider the use of well behaved PCI devices, especially PCI graphic accelerators, which must not over use the PCI retry mechanism, affecting USB pipes.
There are a number of possible architectural changes that could be applied to improve the current chip-set design and system specifications. These changes alone could greatly improve the robustness of the system, but will not be sufficient to protect against an unbalanced PCI device. It is even possible to define more drastic steps to enforce a “good neighbor” policy; however, these steps increase restrictions, possibly curtailing designers’ freedom when choosing more cost-effective peripheral implementations.
Finally, it is for us evident that the best solution still resides on the hands of the peripheral designers. A correctly balanced design should still be capable of performing while allowing other devices and busses to properly operated in the system.
Further Work of usb
At the time the authors are completing this document new and existing technologies are emerging. The Accelerated Graphic port or AGP, is becoming the graphic accelerator standard. The AGP bus already de-couples the graphic accelerator from the PCI bus and adds specific functionality to support pipeline mode of operation. At the present time the authors have not engaged in a study to determine the susceptibility or lack thereof this new architecture to USB latencies. Such investigation is certainly material of much work, like the present.
Also, the IEEE 1394-1995 standard is furthering streaming capabilities in the PC architecture. As in the case of USB, 1394 is susceptible to nuances of PCI peripherals operation. While finishing the draft of this document, we were pleased to observe that techniques similar to this document recommendations are been used in the definition of the 1394 link interface in future generations of south bridge designs.
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