if the following equation or algorithm is satisfied for the pilot indexed i where p 0 i represents the absolute value of the i th pilot u2211 j 0 i 1 u2062 u2062 uf603 u2062 p 0 j uf604 u2062 and u2211 j 0 i 1 u2062 u2062 uf603 u2062 p 0 j uf604 2 represent the sum and squared sum of the absolute value respectively of all pilots indexed 0 u2018 i u2212 1 u2019 alternatively a simpler inclusion exclusion scheme may be devised for example setting a threshold t wherein t lt 1 all the pilots may be multiplied by the threshold t where only the pilots whose absolute magnitude is greater than the lead pilot upon multiplication by t will be included in the estimation while more sophisticated inclusion exclusion strategies may allow for better performance the improved performance may come at the cost of additional hardware thus a suitable balance may be determined for individual signal processing needs all the gain estimation and compensation steps represented by equations 1 4 will remain the same for the included pilots if the associated pilot of a data carrier has been excluded the closest included pilot to that data carrier will be.