Title	New Approach to Optimize a Sigma Delta Modulator
Author	Dadi Mohamed b?chir, Bouallegue Ridha, Ezzeddine taher
Citation	Vol. 7  No. 6  pp. 250-253
Keywords	Dither, GSM, sigma-delta modulator

Title	A New Method of Realistic GSM Network planning for Rural Indian Terrains
Author	P K Dalela, M V S N Prasad, Anand Mohan
Citation	Vol. 8  No. 8  pp. 362-371
Keywords	Digital terrain data, Radio network planning, Path loss, Path loss exponent, GSM

Title	Folding ADC Design for Software Defined GSM Radio-Mobile Station Receiver
Author	Ajay D. Jadhav, Anil.R.Yardi
Citation	Vol. 8  No. 9  pp. 403-406
Keywords	SDR, GSM, ADC, MS, MDAC

Title	A Secure System for Data Collection in GSM Networks
Author	Martin Koutny, Jiri Misurec, Petr Mlynek
Citation	Vol. 8  No. 11  pp. 24-28
Keywords	GSM, GPRS, secure transfer, VPN