Hybrid Random Number Generation Architecture for Mobile Registration Controller: A Reconfigurable Hardware Realization

Mobile phones have become one of the mostly used gadgets in the world. The number of devices being used has been increasing tremendously and the concern for signal connectivity has been growing everyday. In this work, a mobile phone location registration model has been proposed using a hybrid random number generator (HRNG). Traffic of the cellular devices during the successive location registration with base station can be managed by incorporating a HRNG which produces different delays in different mobile phones. This HRNG was designed using ring oscillator, PLL and cellular automata. The developed HRNG was utilized to create non-overlapping pulses on Cyclone II FPGA EP2C20F484C7 which depict a part of mobile registration controller hardware. The proposed scheme utilized 1616 combinational functions and 1003 registers with a total power dissipation of 69.96 mW. The HRNG was analyzed with restart, entropy and NIST randomness analyses. The capability of mobile registration architecture was analyzed with correlation and random distribution analyses.