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Enhanced bandwidth efficiency in wireless OFDMA systems through adaptive slot allocation algorithm
K.V.N. Kavitha, S.V. Babu,
Published in Asian Research Publishing Network
Volume: 8
Issue: 9
Pages: 743 - 748
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. © 2006-2013 Asian Research Publishing Network (ARPN).
About the journal
JournalARPN Journal of Engineering and Applied Sciences
PublisherAsian Research Publishing Network