Gaussian Broadcast Channels with an Orthogonal and Bidirectional Cooperation Link - Computer Science > Information TheoryReportar como inadecuado




Gaussian Broadcast Channels with an Orthogonal and Bidirectional Cooperation Link - Computer Science > Information Theory - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: This paper considers a system where one transmitter broadcasts a singlecommon message to two receivers linked by a bidirectional cooperation channel,which is assumed to be orthogonal to the downlink channel. Assuming asimplified setup where, in particular, scalar relaying protocols are used andchannel coding is not exploited, we want to provide elements of response toseveral questions of practical interest. Here are the main underlying issues:1. The way of recombining the signals at the receivers; 2. The optimal numberof cooperation rounds; 3. The way of cooperating symmetrically orasymmetrically; which receiver should start cooperating in the latter case; 4.The influence of spectral resources. These issues are considered by studyingthe performance of the assumed system through analytical results when they arederivable and through simulation results. For the particular choices we made,the results sometimes do not coincide with those available for the discretecounterpart of the studied channel.



Autor: E. V. Belmega, B. Djeumou, S. Lasaulce

Fuente: https://arxiv.org/







Documentos relacionados