Title:
|
Performance analysis of joint precoding and MUD techniques in multibeam satellite systems
|
Author:
|
Vázquez, Miguel Ángel; Caus, Marius; Pérez Neira, Ana Isabel
|
Other authors:
|
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions |
Abstract:
|
This paper considers interference mitigation techniques in the forward link of multibeam satellite systems. In contrast to previous works, either devoted to receiver interference mitigation (e.g. multiuser detection) or transmitter interference mitigation (precoding), this work evaluates the achievable rates of the joint combination of both techniques. On the one hand, precoding cannot properly mitigate all the inter- beam interference while maintaining a sufficiently high signal-to-noise ratio. On the other hand, the receiver cost and complexity exponentially increases with the number of signals to be simultaneously detected. This highlights that the receiver cannot deal with all the interferences so that in general only 2 signals are jointly detected. As a result, the use of precoding within a coverage area jointly with multiuser detection can both benefit from each other and extremely increase the achievable rates of the system. This is numerically evaluated in a close-to-real coverage area considering simultaneous non-unique decoding strategies. The results show the benefits of this joint scheme that eventually can increase the current precoding performance a 23%. |
Abstract:
|
Peer Reviewed |
Subject(s):
|
-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Comunicacions mòbils -Wireless communication systems -Precoding -Interference -Receivers -Satellites -Multiuser detection -Decoding -Signal to noise ratio -Comunicació sense fil, Sistemes de |
Rights:
|
|
Document type:
|
Article - Submitted version Conference Object |
Published by:
|
Institute of Electrical and Electronics Engineers (IEEE)
|
Share:
|
|