By Stephen A. Rackley
* discover intimately instant networking applied sciences and comprehend the options in the back of RF propagation.* achieve the data and abilities required to put in, use and troubleshoot instant networks.* the way to deal with the issues all for enforcing a instant community, together with the impression of sign propagation on working variety, gear inter-operability difficulties and plenty of more.* Maximise the potency and safeguard of your instant network.As the call for for greater bandwidth has bring about the improvement of more and more complicated instant applied sciences, an realizing of either instant networking applied sciences and radio frequency (RF) ideas is vital for imposing excessive functionality and price powerful instant networks.Wireless Networking know-how truly explains the newest instant applied sciences, masking all scales of instant networking from own (PAN) via neighborhood zone (LAN) to metropolitan (MAN). construction on a complete evaluate of the underlying applied sciences, this useful advisor comprises 'how to' implementation details, together with a case research that appears on the particular necessities for a voice over instant LAN software. This necessary source will supply engineers and bosses all of the invaluable wisdom to layout, enforce and function excessive functionality instant networks.
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Extra resources for Wireless Networking Technology: From Principles to Successful Implementation
The disadvantage of this arrangement is that the bandwidth of the network is shared among all devices, as shown in Figure 3-3. For example, if two PCs are connected through a 10 Mbps passive hub, each will have on average 5 Mbps of bandwidth available to it. If the first PC is transmitting data, the hub relays the data packets on to all other devices in the network. Any other device on the network will have to wait its turn to transmit data. A switching hub (or simply a switch) overcomes this bandwidth sharing limitation by only transmitting a data packet to the device to which it is addressed.
Data encoding How are the raw bits of a data frame coded into symbols for transmission? What functions do these coding mechanisms serve, for example increasing robustness to noise or increasing the efficient use of available bandwidth? Media access How is access to the transmission medium controlled to ensure that the bandwidth available for data transmission is maximised and that contention between users is efficiently resolved? What mechanisms are available to differentiate media access for users with differing service requirements?
As described in Parts III to V, the different wireless 40 Wireless Network Physical Architecture Figure 3-5: Star Topologies in Wireless Networks networking technologies require and enable a wide range of different functions to be performed by these central control nodes. The fundamentally different nature of the wireless medium means that the distinction between switching and non-switching hubs is generally not relevant for control nodes in wireless networks, since there is no direct wireless equivalent of a separate wire to each device.
Wireless Networking Technology: From Principles to Successful Implementation by Stephen A. Rackley