Performance study of IEEE 802.16d under Stanford University Interim (SUI)Channel

Wireless communications are subject to three major constraints: (i) a complex and unpredictable fadingchannel, (ii) a scarce radio spectrum, and (iii) limitations on the power and the size of handheld terminals.New technologies have been introduced and evolved based on these constraints. Among all of thesetechnologies Worldwide Interoperability for Microwave Access (WiMax) has drawn considerable attentionfor broadband wireless communication. The WiMax technology has been standardized under IEEE 802.16dand Orthogonal Frequency Division Multiplexing (OFDM) is the core of the WiMaxtechnology.In order toinvestigate the performances of WiMax system a practical channel model is required. Many channel modelshave been proposed to mimic a real world scenario including Stanford University Interim (SUI) channel.This model has attracted considerable attentions of the researchers in the last few years. In this paper, theperformances in terms of bit error rate (BER) of IEEE 802.16d have been investigated by using differentSUI channel model. Some popular digital modulations like BPSK and QPSK have been considered. Thesimulation results have been presented and compared for different SUI channel models.