DefinePK

Abstract

WiMAX (Worldwide Interoperability for Microwave Access), a new wireless technology promises to deliver both high data rates and long range coverage. In wireless communication channel, the effect of multipath fading is reduced by the use of OFDM transmissions. Adaptive subcarrier allocation methods exploit the multiuser diversity, which leads to improvement in performance by assigning subcarriers to users based on the channel conditions. In this paper, three algorithms are discussed to achieve bandwidth efficiency and fairness. The two algorithms named, fair allocation, proportional allocations are compared with static multiple access method. Performance is compared in terms of Signal to Noise Ratio (SNR) and throughput.