PILOT AIDED SCHEDULING FOR UPLINK OFDMA

J.C.Vijayshree, T.G. Palanivelu

Abstract: In the field of wireless communication, Energy efficiency is very important because of the expectation with wireless links to meet the increasing QoS demand. This results in increase of device power consumption. So we present an energy efficient scheduling using water filling algorithm with OFDMA technique for multiuser. Subcarrier allocation for a multiple access OFDM system is found out by this. Total bit rate is maximized by this approach. After the establishment of sub carrier allocation, the bit and power allocation for each user can be determined with a single-user. An energy efficient scheme based on time-averaged bits-per-joule metrics has been developed with low complexity. Simulation results proved the improvement in energy efficiency of the channel.

Keywords: OFDMA, QoS, Subcarrier, Energy efficiency

DOI: https://doi.org/10.15623/ijret.2014.0319131