Using EM algorithm as a new method for Synchronization and channel estimation of MIMO-OFDM systems
In this paper, a new algorithm has introduced the most estimation similarity, channel coefficients fading and moving the carrier frequency in MIMO-OFDM systems. The purpose of this paper provides an algorithm to synchronize and estimate channel coefficients which has low computational complexity. The proposed algorithm using the process sequence containing the training symbols, carrier frequency offset and channel coefficients fading, estimate in two consecutive stages. Consequently, low computational complexity and having easy implementation. Moreover, the algorithm can be used in a variety of STC-OFDM systems.
Keywords: Multi-Input Multi-Output systems, Synchronization, Channel Estimation, EM algorithm
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ABOUT THE AUTHORS
Navid Daryasafar
Navid Daryasafar was born in Bushehr ,Iran.He received Bachelor and Master degrees in Electrical-Telecommunication engineering from Islamic Azad University , Bushehr, Iran.
Babak Ehyaee
Babak Ehyaee was born in Bushehr ,Iran.He received Bachelor and Master degrees in Electrical-Telecommunication engineering from Islamic Azad University , Bushehr, Iran.
Aboozar Lashkari
Aboozar Lashkari was born in Bushehr ,Iran.He received Bachelor and Master degrees in Electrical-Telecommunication engineering from Islamic Azad University , Bushehr, Iran.
Navid Daryasafar
Navid Daryasafar was born in Bushehr ,Iran.He received Bachelor and Master degrees in Electrical-Telecommunication engineering from Islamic Azad University , Bushehr, Iran.
Babak Ehyaee
Babak Ehyaee was born in Bushehr ,Iran.He received Bachelor and Master degrees in Electrical-Telecommunication engineering from Islamic Azad University , Bushehr, Iran.
Aboozar Lashkari
Aboozar Lashkari was born in Bushehr ,Iran.He received Bachelor and Master degrees in Electrical-Telecommunication engineering from Islamic Azad University , Bushehr, Iran.
