An improved channel estimation method for OFDM system in uplink
Journal Title: Science Paper Online - Year 2008, Vol 3, Issue 1
Abstract
In this paper, an improved channel estimation method based on code division multiplexing (CDM) pilot is proposed to mitigate interference among pilot sequences for orthogonal frequency division multiplexing (OFDM) systems in uplink. Interference cancellation is introduced into channel estimation to reduce interference in uplink due to non-orthogonality of pilot sequences for different users in this paper. Simulation results show that the proposed methods have much lower complexity and comparable performances with conventional decorrelation detector.
Authors and Affiliations
HUANG Chen SUN Feifei
Keywords
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