أرجو المساعدة في حل الاسايمنت4
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Question No. 1[ 1 point]
What is a foreign agent and explain its relationship with the home agent.
Question No. 2[ 3 point]
Give three differences between Multichannel Multipoint Distribution Service (MMDS) and Local Multipoint Distribution Service (LMDS).
Question No. 3 [ 1 point]
If a total of 33MHz of bandwidth is allocated to a particular FDD cellular telephone system which uses two 25kHz simplex channels to provide full duplex voice and control channels. Calculate the number of channels available per cell if a system uses 4-cell reuses.

Question No. 4 [1 point]
a- What do broadband access networks aim for?
b- Give fourmain existing technologies of broadband access networks

Question No. 5 [3 point]
a. What is a splitter for ADSL?
b. What is a configuration profile for an ADSL interface?
c. What are the possible modes of configuration profile?

Question No. 6 [1 point]
A half-duplex channel is carrying a 4-Mbps signal. Calculate the bandwidth of the channel in Hertz for the following modulated signals:
a. QPSK
b. 16-QAM

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