Chen, YingJayalath, Anagiyaddage DhammikAbhayapala, Thushara2015-12-13December 10780392663http://hdl.handle.net/1885/83987It is expected that the next generation wireless local area networks will be predominantly based on MIMO-OFDM physical layer. The performance of coherent MIMO-OFDM based systems critically depends on the availability of accurate channel estimations. Preambles, at the beginning of each packet, are used to estimate the channels in IEEE 802.1 In Systems. However, in mobile communication, when the channel is time varying, the channel variations within a given packet increases the packet error rate (PER) in the system. So the channel variations have to be tracked by the receiver. This paper proposes a low complexity channel tracking scheme for 802.1 In systems to improve the PER. The delay introduced by the channel tracking scheme is within the acceptable limits.Keywords: Channel tracking; Channel variations; Packet error rate (PER); Bit error rate; Computational complexity; Packet networks; Parameter estimation; Signal processing; Tracking (position); Decision making20052015-12-12