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Fractional Frequency Reuse (FFR) is an efficient method to mitigate Inter Cell Interference in multicellular Orthogonal Frequency Division Multiple Access (OFDMA) systems. In this paper, we analyze the downlink worst case Signal to Interference Ratio for FFR schemes. A closed form expression is derived analytically for the worst SIR, outage probability, and Spectral Efficiency (SE). The proposed analytical...
An insight to the ℓ1 lattice decoder for flat-fading multiple antenna wireless communications systems is presented in this paper. In particular, we show that by formulating the problem as a bounded error subset selection, the equivalent decoder finds the nearest lattice point to the received signal in the ℓ1 sense. The search for the nearest lattice point is bounded inside a hypercube centered at...
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