Vandermonde Frequency Division Multiplexing for Cognitive Radio - Computer Science > Information TheoryReportar como inadecuado




Vandermonde Frequency Division Multiplexing for Cognitive Radio - Computer Science > Information Theory - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: We consider a cognitive radio scenario where a primary and a secondary userwish to communicate with their corresponding receivers simultaneously overfrequency selective channels. Under realistic assumptions that the secondarytransmitter has no side information about the primary-s message and eachtransmitter knows only its local channels, we propose a Vandermonde precoderthat cancels the interference from the secondary user by exploiting theredundancy of a cyclic prefix. Our numerical examples show that VFDM, with anappropriate design of the input covariance, enables the secondary user toachieve a considerable rate while generating zero interference to the primaryuser.



Autor: L. S. Cardoso, M. Kobayashi, M. Debbah, O. Ryan

Fuente: https://arxiv.org/







Documentos relacionados