Summary
International Symposium on Nonlinear Theory and its Applications
2017
Session Number:A3L-A
Session:
Number:A3L-A-4
Preamble-Less Synchronization by Short Block Autocorrelation for OFDM Systems Over Multipath Fading Channels
Misaki Fujishiro, Kazuki Maruta, Chang-Jun Ahn,
pp.205-208
Publication Date:2017/12/4
Online ISSN:2188-5079
Summary:
This paper proposes a novel symbol timing synchronization scheme for preamble-less OFDM systems.In the next generation wireless communication system we have to deal with signals from huge sensors set up everywhere such as wearable devices, cars and production facilities in the factory.These applications require low latency for quick response or feedback.Preamble-less packet transmission is one of the effective means to reduce overhead and has been widely investigated.However, multipath fading channel causes inter symbol interference (ISI) which worsens synchronization accuracy and leads to a negative impact on the overall system performance. The basic idea of the proposed scheme is to utilize correlation block shorter than cyclic prefix, so as to avoid the multipath effect.Computer simulations demonstrate the proposed scheme achieves improved synchronization performance and reduced computation complexity compared with the existing schemes.