Advantages of GSM | Disadvantages of GSM
This page covers advantages and disadvantages of GSM. It mentions GSM advantages and GSM disadvantages. GSM stands for Global System for Mobile communications.
Advantages of GSM
Following are the advantages of GSM:
➨GSM techology has been matured since long and hence GSM mobile mobile phones and modems are widely available across the world.
➨It provides very cost effective products and solutions.
➨The GSM based networks (i.e. base stations) are deployed across the world and hence same mobile phone works across the globe. This leverages cost benefits as well as provides seamless wireless connectivity. This will help users avail data and voice services without any disruption. Hence international roaming is not a concern.
➨Advanced versions of GSM with higher number of antennas will provide high speed download and upload of data.
➨SAIC and DAIC techniques provide very high transmission quality. SAIC stands for Single Antenna Interference Cancellation technique while DAIC stands for Dual antenna interference cancellation.
➨It is easy to maintain GSM networks due to availability of large number of network engineers at affordable cost. This will help in revenue increase by the telecom operators.
➨The phone works based on SIM card and hence it is easy to change the different varieties of phones by users.
➨The GSM signal does not have any deterioration inside the office and home premises.
➨It is easy to integrate GSM with other wireless technology based devices such as CDMA, LTE etc.
Disadvantages of GSM
Following are the disadvantages of GSM:
➨Many of the GSM technologies are patented by Qualcomm and hence licenses need to be obtained from them.
➨In order to increase the coverage repeaters are required to be installed.
➨GSM provides limited data rate capability, for higher data rate GSM advanced version devices are used.
➨GSM uses FTDMA access scheme. Here multiple users share same bandwidth and hence will lead to interference when more number of users are using the GSM service. In order to avoid this situation, robust frequency correction algorithms are used in mobile phones and base stations.
➨ GSM uses pulse based burst transmission technology and hence it interferes with certain electronics. Due to this fact airplanes, petrol bunks and hospitals prevent use of GSM based mobile or other gadgets.
Tutorial on GSM System Basics
Refer GSM tutorial>> which describes GSM basics, network architecture, network elements, system specifications, applications, GSM burst types, GSM frame structure or frame hierarchy, logical channels, physical channels, GSM physical layer or speech processing, GSM mobile phone network entry or call setup or Power ON procedure, MO/MT call, VAMOS, AMR, MSK/GMSK modulation, physical layer, protocol stack, mobile phone basics, GSM frequency planning, PS call downlink and PS call uplink.