Performance of IEEE 802.16e MIMO-OFDM System with Alamouti Scheme

Abstract

WiMAX is a wireless digital communications system,also known as IEEE 802.16 that is intended for wireless "Metropolitan Area Networks". WiMAX can provide broadband wireless access (BWA) up to 30 miles (48.2803 km) for fixed stations, and 3-10 miles (4.8-16.0 km) for mobile stations. In contrast, the Wi-Fi-802.11 wireless local area network standard is limited in most cases to only 100 - 300 feet (30.8 – 91.44 meter). It is also known as 802.16 networking or wireless networking. The new area of communication, currently employed in some parts of the world, is Worldwide Interoperability for Microwave Access (WIMAX). It is the latest technology which is approved by IEEE 802.16 group, which is a standard for point-to-multipoint wireless networking. The MIMO-OFDM is a key technology for next-generation cellular communications (Mobile WiMAX, IMT Advanced) as well as wireless Personal Area Network, wireless Local Area Network (IEEE 802.11a, IEEE 802.11n) and broadcasting (DAB, DVB). In this paper analysis of the multiple antenna technologies like SISO, MIMO system under different combination of modulation technologies like BPSK, QPSK, 8-QAM and 16-QAM with mobile wireless channel AWGN used and the results shows under the bit error rate versus signal to noise ratio.