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2008

Finite-Sample Performance Analysis of Widely Linear Multiuser Receivers for DS-CDMA Systems

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Finite-Sample Performance Analysis of Widely Linear Multiuser Receivers for DS-CDMA Systems
Abstract--This paper tackles the theoretical performance analysis of widely-linear (WL) multiuser receivers for direct-sequence code-division multiple-access (DS-CDMA) systems, as well as their comparison with conventional linear (L) ones. In particular, receivers based on the minimum output-energy (MOE) criterion are considered, since they offer a good tradeoff between performance and complexity and, moreover, lend to some simplifications in the analysis. After comparing the ideal signal-to-interferenceplus-noise-ratio (SINR) performances of the WL-MOE and LMOE receivers, the paper establishes finite-sample performance results for two typical data-estimated implementations. Specifically, by adopting a first-order perturbative approach, the SINR degradation of the data-estimated WL-MOE receivers is accurately evaluated and compared with that of its linear counterpart. Simulation results are provided to validate and complement the theoretical analysis.
Angela Sara Cacciapuoti, Giacinto Gelli, Luigi Pau
Added 16 Dec 2010
Updated 16 Dec 2010
Type Journal
Year 2008
Where TSP
Authors Angela Sara Cacciapuoti, Giacinto Gelli, Luigi Paura, Francesco Verde
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