We propose in this paper as a possible candidate for next-generation WiMAX a multilayer spatial multiplexing scheme, which is flexible and conceptually simple. Every layer is a QPSK symbol stream, weighted by a coefficient, and superimposed on the other layers. A method to optimize the coefficients is described in details. At the receiver, an iterative (turbo-like) structure gives very good performance at an affordable complexity, as it is shown by simulation results, in a realistic and WiMAX-complying scenario.
Multilayer spatial multiplexing in next-generation WiMAX
A Tarable;
2009
Abstract
We propose in this paper as a possible candidate for next-generation WiMAX a multilayer spatial multiplexing scheme, which is flexible and conceptually simple. Every layer is a QPSK symbol stream, weighted by a coefficient, and superimposed on the other layers. A method to optimize the coefficients is described in details. At the receiver, an iterative (turbo-like) structure gives very good performance at an affordable complexity, as it is shown by simulation results, in a realistic and WiMAX-complying scenario.File in questo prodotto:
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