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are related topics, and are a key consideration when evaluating wireless networks. Protocols In many cases, the mobile computer functions as a remote node of the network you are accessing -- the Internet or a corporate intranet. If the wirel ....

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... of specific networks further below explain what specific protocols are used. But the general pattern for the wireless link is as follows. Physical layer An RF carrier signal that is digitally modulated to create a bit stream. This bit stream incorporates forward error correction, interleaving and other techniques to mitigate the effects of interference and weak signals that can produce high-bit-error rates. Link layer Usually a specialized radio protocol that employs a form of medium access optimized for the radio environment. Most link protocols involve interactions between the wireless modem and a base station, and mobile units d ...