Blind phase tracking algorithm for FBMC receivers

Non synchronous random access is envisaged for sporadic traffic to limit the amount of the exchanged signaling messages. Burst data transmission is commonly used in wireless communication systems. Each burst begins with a preamble which is used to synchronize the receiver. When the initial estimation of the Carrier Frequency Offset is coarse, and/or the burst duration is relatively long, a phase tracking algorithm is required to track any residual phase during the payload transmission. In this paper we investigate a blind phase tracking algorithm for Filter Bank Multicarrier waveforms. Different algorithms are described and evaluated. A comparison with state of the art algorithms is discussed. Finally we describe an algorithm based on sign statistics that outperforms the state of the art algorithms while reducing the complexity.