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...sion. While range expansion can alleviate the cross-tier interference in UL, in DL it results in bad signal conditions in the range expanded areas if no additional interference mitigation is employed =-=[23]-=-. Therefore, we explicitly model different association policies in UL and DL. 1) Downlink Association Policy: A typical receiver is associated with the nearest base station in DL mode of tier i if i =...

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...single τ ) and concluded that a large part of the performance gained from interference cancellation is possible by just removing the largest interfering signal. Parallel to this work, Quek and et al. =-=[27]-=- developed a Poisson-based model of a heterogeneous network with arbitrary propagation effects (and single τ ) in order to study the probability of removing the n-th strongest signal and to decode the...

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...-coverage being later introduced [19, 29]. More recently, these models have been advanced by studying the coverage probability under signal coordination [30, 31] and interference cancellation schemes =-=[32, 33]-=-, with a recent contribution being the joint probability density of the order statistics of the process formed from the SINR values of the typical user [19]. The recently observed relation between the...