Green Communications

Wireless communications have already shaped our daily life by providing seamless radio access worldwide. According to the latest International Telecommunications Union statistics [1], by the end of 2014, mobile-cellular subscriptions will reach 7 billion (95.5 per 100 inhabitants), which is almost equal to the world population. Having this subscription number in mind, realistically, wireless system design and manufacturing have already become the fastest growing section of the electronics industry. However, the incremental demand of providing better wireless connection services for more subscribers imposes several challenges in delivering the next-generation wireless radio access devices: subscribers need cheaper bundles with higher data rates, while operators need more efficient solutions with wider bandwidth. © 2014 IEEE.