3 Wireless Communication  Much more difficult to achieve than wired communication  Surrounding environment interacts with the signal,  Blocking signal paths and  Introducing noise and echoes  Wireless connections are of lower quality than wired connections  Lower bandwidths: 9-14 Kbps for cellular telephony, 1-54 Mbps for radio communication (WLAN), also the bandwidth availability per user is dependent on the number of users communicating in that area  Higher error rates  More frequent spurious disconnections
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