Author : Dharmendra Singh Chauhan and Madhvi Jangalwa

This work discusses the performance analysis of WiMAX system with antenna array optimized by applying Big Bang Big Crunch (BB-BC) algorithm. This algorithm has two phases; Big Bang phase similar to Big Bang Theory and Big Crunch phase similar to Big Crunch Theory. In the Big Bang phase, the randomly generated population of candidates is uniformly distributed over the search space. Then, in the Big Crunch phase these candidates are concentrated to a point using a convergence operator namely centre of mass. Using centre of mass, the new position of each candidate is calculated. This process is repeated until convergence is achieved. Radiation patterns at transmitting side have been obtained. Results show a considerable decrease in side lobe levels at transmitting side.

Keywords: WiMAX; Big Bang; Big Crunch; side lobe level, antenna array