Iterative MMSE-PIC Detection Algorithm for MIMO OFDM Systems
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2014, Vol 2, Issue 9
Abstract
Wireless communication systems are required to provide high data rates, which is essential for many services such as video, high quality audio and mobile integrated services. When data transmission is affected by fading and interference effects the information will be altered. Multiple Input Multiple Output (MIMO) technique is used to reduce the multipath fading. Orthogonal Frequency Division Multiplexing (OFDM) is one of the promising technologies to mitigate the ISI. The combination of MIMO-OFDM systems offers high spectrum efficiency and diversity gain against multipath fading channels. Different types of detectors such as ZF, MMSE and PIC, Iterative PIC. These detectors improved the quality of received signal in high interference environment. Implementations of these detectors verified the improvement of the BER v/s SNR performance. Iterative PIC technique give best performance in noise environment compared to ZF, MMSE and PIC.
Authors and Affiliations
Gorantla Rohini Devi, K. V. S. N. Raju, Buddaraju Revathi
Keywords
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