A New Union Bound on the Error Probability of Binary Coded OFDM Systems in Wireless Environments

作者：Zummo Salam A; Hassan Matasm M; Yeh Ping Cheng^*

来源：Wireless Personal Communications, 2011, 60(2): 307-320.

DOI：10.1007/s11277-010-9945-3

• Diversity
• Error probability
• Rayleigh
• Fading
• Space-time block codes
• MIMO
• OFDM
• Correlated block fading

Orthogonal Frequency Division Multiplexing (OFDM) systems are commonly used to mitigate frequency-selective multipath fading and provide high-speed data transmission. In this paper, we derive new union bounds on the error probability of a coded OFDM system in wireless environments. In particular, we consider convolutionally coded OFDM systems employing single and multiple transmit antennas over correlated block fading (CBF) channels with perfect channel state information (CSI). Results show that the new union bound is tight to simulation results. In addition, the bound accurately captures the effect of the correlation between sub-carriers channels. It is shown that as the channel becomes more frequency-selective, the performance get better due to the increased frequency diversity. Moreover, the bound also captures the effect of multi-antenna as space diversity. The proposed bounds can be applied for coded OFDM systems employing different coding schemes over different channel models.

• 出版日期2011-9
• 单位中国石油大学（北京）