The 2G cellular system GSM 900 operates its 125 forward channels in the uplink frequency band 890.2-915 MHz and 125 reverse channels in the frequency band 935.2-960 MHz. Each channel has a bandwidth of 200 kHz. i. What is the bandwidth in the forward channels (uplink frequency band) and reverse channels (downlink frequency band)? ii. If each channel is subdivided into 16 time slots, what is the sub channel spacing? If each channel is shared by 16 users then compute the total number of users per cell?

The 2G cellular system GSM 900 operates its 125 forward channels in the uplink frequency band 890.2-915 MHz and 125 reverse channels in the frequency band 935.2-960 MHz. Each channel has a bandwidth of 200 kHz. i. What is the bandwidth in the forward channels (uplink frequency band) and reverse channels (downlink frequency band)? ii. If each channel is subdivided into 16 time slots, what is the sub channel spacing? If each channel is shared by 16 users then compute the total number of users per cell?

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter8: Data And Network Communication Technology

Section: Chapter Questions

Problem 27VE

See similar textbooks

Similar questions

A corporation has a medium with a 7 MHz bandwidth (lowpass). The corporation needs to create 9 separate independent channels each capable of sending at least 12 Mbps. The company has decided to use QAM technology. What is the minimum number of bits per baud for each channel? What is the number of points in the constellation diagram for each channel? Let d = 0
In GSM, there are 8 separate time slots that makeup what is known as a "TDMA frame". Each GSM time slot lasts for 577 ps (microseconds) and contains more than simply a sample of each individual signal. i. How long does the TDMA frame last, express your answer in his and ms? Each time slot comprises a total of 148 bits. Of these 148 bits, only 114 represent voice or other data. The rest are used for a variety of control purposes. How many bits of data are in one TDMA frame? How many bits for control purposes are in one TDMA frame? What is the total number of bits, including data and control, in a TDMA frame?
In GSM, a "TDMA frame" is composed of eight distinct time slots. Each GSM time slot is 577 s (microseconds) in duration and includes far more than a snapshot of each individual signal.. Each time slot contains 148 bits. Just 114 of these 148 bits reflect speech or other info. The remainder are used for a number of different types of power. How many data bits are included in a single TDMA frame?
In GSM, a "TDMA frame" is composed of eight distinct time slots. Each GSM time slot is 577 s (microseconds) in duration and includes far more than a snapshot of each individual signal.Each time slot contains 148 bits. Just 114 of these 148 bits reflect speech or other info. The remainder are used for a number of different types of power. How many data bits are included in a single TDMA frame?
MAC address of a device is represented using Hexadecimal number. A section of MAC address is given in the following format: [Last 3 digits of your registration number]. You are asked to sketch the given MAC data using polar signaling and pseudo-ternary signaling. COMPARE the characteristics of waveforms and conclude that which of the waveforms is NRZ and RZ. Write proper justification of your answer. Reg three digits: 031
In a typical mobile phone system with hexagonal cells, it is forbidden to reuse a frequency band in an adjacent cell. If 840 frequencies are available, how many can be used in a given cell?
FDM system user to combine 9 tones on a single carrier four of these tones are each 2.5 kHz and modulated SSB on sub-carrier with guard band of 200 Hz. The other is each at 4.2 kHz and are modulated FM on sub-carrier with modulation index of 5 with guard band of 300 Hz. The base band signal is frequency modulated on main carrier with modulation index of 10. calculate the transmission bandwidth of the FDM signal. Assuming 400 Hz as a guard band between SSB and FM sub- .carrier BW=6.812 MHz O BW=9.812 MHZ O BW=7.812 MHZ O BW-5.812 MHz O BW=8.812 MHz O
For data is transmitted over twisted-pair cable, you have these characteristics: A signal's power on the channel is 60 dB, signal attenuation is 2 dB per 100 meters, and average noise power on the cable is 0.15 dB per meter. Answer the following questions: What's the S/N ratio at the end of a 60-meter channel? What's the S/N ratio at the end of a 1.5-kilometer channel? What's the maximum channel length if the receiving device requires at least 25 dB of S/N ratio for reliable operation?
Suppose that we are sending a 30 Mb MP3 file from a source host to a destination host. All links in the path between source and destination have a transmission rate of 10 Mbps. Assume that the propagation speed is 2 × 108 meters/sec, and the distance between source and destination is 10,000 km. 1. Now suppose there is only one link between source and destination, and there are 10 FDM channels in the link. The MP3 file is sent over one of the channels. What is the end-to-end delay?
What is the delay of sending a data file from a source station to a destination station? Suppose that the length of the data file is 2 Mbytes and the bandwidth of the channel is 1600 bps, and the network link between the sender and receiver is 20000 Km and the speed of the light inside the link is 2x108 meters/second? Assume that the delay is composed of only transmission time and propagation time.
SUBJECT : COMPUTER NETWORKING (PLEASE PROVIDE COMPLETE RELEVANT SOLUTION) Mr. Hadi sent an email using 01 Gbps network bandwidth which contained a message size of 2.5-KB (Kilobyte). Mr. John is X km away from sender (where X is 627) who received email at speed of light travels at 2.4 × 108 m/s. You may need to calculate propagation time and the transmission time for the entire communication. Draw the figure by labelling all above mentioned values and add screen shot in your answer along with your solution.
Consider a geostationary satellite-based system. Earth stations are multiplexing digital information streams and they transmit them to the satellite. Due to the very long distance of the satellite is from the surface of Earth, you wish your earth station transmitters and the satellite transmitter to operate their amplifier at its maximum power output level. If you were the designer of the system, would you select to use Frequency Division Multiplexing (FDM) or Time Division Multiplexing (TDM)?