A data processing method in a receiver of a communication system, a receiver and a network element is provided. The method includes writing an access data stream addressed to a receiving application on a remote application server and writing a transaction identifier to the end of the access data stream. The estimations of the received symbols affected by the frequency error estimation are obtained by varying the frequency error }) in an acquisition interval for estimations of the transmitted symbol. Therefore, by forming the aperture on the ground plane, it is possible to design a filter having a wide bandwidth characteristic. The cleaning system is one contemplated for lawn mowers and other reciprocating machinery, as well as both push mowers and ride-on mower decks.