Question: undefined QUESTION 3 [10 Marks] (a) Based on Figure 3 below, both station A and station C are trying to transmit to station B wirelessly.

undefined QUESTION 3 [10 Marks] (a) Based on Figure 3 below, both undefined

QUESTION 3 [10 Marks] (a) Based on Figure 3 below, both station A and station C are trying to transmit to station B wirelessly. i) Elaborate on hidden terminal and fading problems. [4 Marks] ii) What is the most suitable Medium Access Control (MAC) protocol for wireless connectivity like this? [1 Mark] C's signal Asigal sogh Figure 3 Three nodes connected wirelessly (b) The Figure 4 below shows a simple 3G system architecture. Explain how 3G users access data and voice network using this architecture. [5 marks] MSC NEON WD Public telephone network Gateway MSC radio network controller SGSN Public Internet GGSN Figure 4

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