Abstract:

WiMax, a broadband wireless access technology, is based on World Interoperability for Microwave access. It provides the last-mile solutions for different applications up to the maximum distance as compared to the other wireless technologies with better coverage and data rates. Basically, it is an IEEE 802.16 standard termed as a wireless MAN and the subset of this standard is 802.16a called as WiMax. It is developed by ETSI (European telecommunication standard institute) offering data rate up-to 100Mbps and its transmission range is up-to 51km. WiMax, wireless MAN (Metropolitan Area Network), uses directional antennas to maximize the transmission range and coverage in LOS (Line of Sight) and NLOS (Non line of Sight). It uses both licensed and unlicensed frequency bands having spectrum range from 2GHz-66GHz. This innovative technology is used to provide broadband access with high data-rate for residential as well as enterprise use with low cost infrastructure. Both continuous and busty traffic can be accommodated through this wireless technology. The project aims to discuss its performance analysis on the basis of different parameters like QoS, modulation, data rate as compared to other wireless technologies like 3G, GPRS etc. The work focuses on extensive background study of WiMax, its standards, technical issues, network consideration, Physical layer & MAC layer, its architecture and future enhancements in case of full mobility, coverage, high transfer rate in WiMax. Further investigation in my work will be used to explore different modulation schemes such as OFDM, OFDMA. Scalable Orthogonal Frequency Division Multiple Access (SOFDMA) is used in mobile WiMax will be used as full mobility. In a nutshell, this cost effective broadband wireless having throughput of 70Mbps technology is an alternative to DSL, fibre optics and cable modems. In future, WiMax will be a big intimidation to cellular technologies due to more capacity of voice, data, QoS, coverage, and cost etc.