Fig. 2
From: On the interference arising from random spatial fields of interferers utilizing multiple subcarriers
Illustration of the channel access. The set of 10 subcarriers is considered, with \(K=5\) msBs of size \(N = 2\). \(b_{u,i}\) is the i-th subcarrier from the u-th msB, \(u = 1,\ldots ,5\). The contribution of each interferer in msBs is shown with gray indicating that the device is active. The resulting interference is a complex vector with NK elements. The element \(Z_{u,i}\) corresponds to the sum of all contributions falling in the subcarrier \(b_{u,i}\)