Impact Factor (PIF): 2.365 Global Journal of Advance Engineering Technologies and Sciences PERFORMANCE OF WIMAX 802.16e MIMO OFDM SYSTEM USING 2×2 ALAMOUTI SCHEME

ABSTRACT The new area of wireless communication technology, currently employed in some parts of the world, is Worldwide Interoperability for Microwave Access (WIMAX). It is the latest 4G-technology which is approved by IEEE 802.16 group, which is a standard for point to multipoint wireless networking. The multipoint MIMO-OFDM system is a key technology for next-generation cellular communications (Mobile WiMAX, IMT Advanced) as well as Wireless Personal Area Network (WPAN), wireless Local Area Network (IEEE 802.11a, IEEE 802.11n) and broadcasting (DAB, DVB). In this paper analysis of the multiple antenna technologies MIMO-OFDM system under different combination of modulation technologies like BPSK, QPSK, 8-QAM and 16-QAM and Additive white Gaussian noise (AWGN) Channel with a new scheme Alamouti used and the performance results shows under the bit error rate (BER) versus signal to noise ratio (SNR)