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Planning procedures for multi-carrier wireless systems based on the SINR evaluated over one sub-carrier does not allow to account for multi-carrier transmissions features where coded bits in the same block are spread over different subcarriers. Due to channel frequency selectivity, sub-carriers can be subjected to different propagation conditions. The decoder in the receiver can compensate for errors even when some subcarriers are received below the SINR target level. This fact should be accounted for during cell planning so to avoid wrong dimensioning of network parameters.
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