Modified Dynamic Subcarrier Bandwidth (MDSB) OFDM Systems for Energy Efficient Transmission in High Mobility Applications
Orthogonal Frequency Division Multiplexing (OFDM) is a fast growing technology which is frequently used in all high data rate applications. The standards like Long Term Evaluation (LTE) promise to offer a good data rate at high mobility. But the high mobility destroys the orthogonality of OFDM systems and also reduces the transmission energy efficiency. The transmit power is a very important resource in the OFDM based communication systems which determines the reliability, data rate and energy consumption of the system. Energy minimization is a very critical component in wireless OFDM applications. Minimization of energy and Inter Carrier Interference (ICI) is mainly concentrated in this paper.