Which multiple access techniques are used in the following technologies? A.2.1 GSM, GPRS, and EDGE. A.2.2 3GPP standards: UMTS and HSPA. A.2.3 LTE. A.2.4 Fibre optic.
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Sri K.
Radio capacity may be increased in the cellular concept by: a) Increasing radio spectrum b) Increasing the number of base stations reusing the channel c) Both a) and b) d) None of the above In GSM, the interference between neighboring base stations is avoided by: a) Assigning different group channels b) Using transmitters with different power levels c) Using different antennas d) All of the above The total bandwidth for each up and down path for GSM 1800 is: a) 25MHz b) 35MHz c) 60MHz d) 20MHz Fading is caused due to: a) Multipath distortion b) Obstacles c) Frequency variations at the source d) Variation in amplitude and phase at the receiver
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