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| An Efficient Channel Estimation Algorithm under Narrow-Band Jamming for OFDM Systems | |||
| Hong,Daesik | Yonsei University | ||
| Han,Myeongsu | Yonsei University | ||
| Yu,Takki | Samsung Electronics | ||
| Kwak,Kyungchul | Yonsei University | ||
| Kim,Jihyung | Yonsei University | ||
| Han,Seungyoup | Yonsei University | ||
| This paper presents a channel estimation scheme using a new jammed pilot detection algorithm for Orthogonal Frequency Division Multiplexing (OFDM) systems under Narrow-Band Jamming (NBJ). The jammed pilot subcarrier can be detected and excised by using the proposed algorithm after least squares estimation. The average Mean-Squared Error (MSE) on one OFDM symbol both under a jammed and a removed pilot subcarrier are derived analytically. Simulation results show that the channel estimator with the proposed algorithm significantly improves the MSE performance at a low signal-to-jamming ratio. | |||
| Myeongsu Han received the B.S. degree in mechanical engineering from Naval Academy, Jinhae, Korea in 1994, and M.S. degree in electrical & electronic engineering at Yonsei University, Seoul, Korea in 2003, respectively. He has been pursuing his Ph.D. degree at Yonsei University. His current research activities are in spread-spectrum communications, orthogonal frequency division multiplexing (OFDM), and multi-hop systems. His e-mail address is hmskdy@itl.yonsei.ac.kr. | |||