Understanding Bluetooth

Throughout this chapter we have discussed various wireless communication protocols. These technologies range in scope from long distance WLANs to one-meter IrDA devices. Each of these technologies has its niche, as well as its attendant strengths and weaknesses. For example, WLANs enable the transmission of data up to several hundred feet, but often require manual configuration changes that are difficult to implement. On the other hand, IrDA permits a seamless connection between devices without the need for extra configuration. However, their usability is dependent upon a direct line of sight no more than one meter away.

Although each technology discussed so far has its use, there is still a gap between WLANs and PANs. ...

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