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PIMRC
2010
IEEE

Iterative SIC receiver scheme for non-orthogonally superimposed signals on top of OFDMA

9 years 3 months ago
Iterative SIC receiver scheme for non-orthogonally superimposed signals on top of OFDMA
In this paper, we propose an iterative SIC receiver architecture with pilot- and data-based channel estimation for efficient decoding of non-orthogonal superimposed signals. The non-orthogonal superposition concept on top of OFDMA is a promising technique to improve cell spectral efficiency. In the cellular case, where users with significant path loss are superimposed by an intelligent scheduler, the SIC multi-user receiver scheme is well adapted for user signal separation. Based on the proposed receiver, we show the performance by means of multi-link link-level simulations in a realistic OFDMA uplink system including channel estimation based on real pilot patterns. Keywords- Non-orthogonal superposition; iterative SIC receiver; multi-user; iterative channel estimation; MMSE; OFDMA;
Andreas Ruegg, Alberto Tarable
Added 14 Feb 2011
Updated 14 Feb 2011
Type Journal
Year 2010
Where PIMRC
Authors Andreas Ruegg, Alberto Tarable
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