Characteristics of the 4G mobile communication systems

Questions set #1. Choose the most relevant answer(s) in the following [14 marks]
(Each question caries 1 mark unless specified)

  1. Fourth generation (4G) mobile communication system standard (choose two)
    a) GSM b) UMTS c) WiMAX d) LTE
  2. Characteristics of the 4G mobile communication systems (choose 3)
    a. analog b. IP based c. OFDMA d. 100Mb/s – 1Gb/s
    e. TDMA f. multimedia high speed and quality services
  3. Second generation (2G) mobile communication system standard (choose two)

a. AMPS b. GSM c. NMT d. IS-95

  1. Which standard is known as 2.5G

a. GSM b. D-AMPS c. EDGE d. GPRS

  1. Third generation (3G) mobile communication system standard (choose two)

a. GSM b. UMTS c. GPRS d. IMT2000

  1. Characteristics of the 1G mobile communication systems (choose two)

a. digital b. analog c. TDMA d. voice only

  1. Characteristics of the 2G mobile communication systems (choose two)

a. digital b. analog c. FDMA d. voice and SMS

  1. Standard known as 2.75G
    a) GSM b. DAMPS c) GPRS d) EDG
  2. In the cellular radio system shown below (Justify your answer) (3 marks.)
    i) The reuse factor N is
    a. 12 b. 19 c. 7 d. 27

ii) If R=1km, then the frequency reuse distance (in Km) D is
a. 6 b. 7.55 c. 4.58 d. 9

iii) The value of each of the integers i and j are respectively
a. i=2 ; j=2 b. i=3 ; j=2 c. i=2 ; j=1 d. i=3 ; j=3

  1. If the above cellular network consists of 32 cells and 182 radio channels per cluster, then (3 marks)
    i) The total area covered by the cellular network (in km2) is
    a. 18.19 b. 83.14 c. 15.59 d. 472.84

ii) The total channel capacity
a. 485 b. 304 c. 832 d. 216

Questions set #2

  1. Which mode and design are used in this network?
  2. Witch type of wireless router is used?
  3. Which three (3) security technologies may be used?
  4. When designing a WLAN network, the following options have to be selected [3 marks]
  5. Network Mode (or standard) (a, b, g, N, or mixed)
  6. Network Name (SSID)
  7. Standard channel (1,6, or 11)
    Explain on what depends the selection of the above
    three parameters?

Hint: neighboring environment, wireless clients,
Wi-Fi signal strength)

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