A Constant-Gap Result on the Multi-Antenna Broadcast Channels with Linearly Precoded Rate Splitting

Abstract : In this paper, we consider a simple downlink channel with a multi-antenna base station and two single-antenna receivers. We assume that the channel is deterministic and known to all the nodes. Our contribution is two-fold. First, we show that linear precoding with private streams can have unbounded gap to the capacity of the channel. Second, we show that using rate-splitting with a simple power allocation one can achieve the sum capacity to within a constant gap for any channel realization.
Type de document :
Communication dans un congrès
2018 IEEE 19th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Jun 2018, Kalamata, Greece. IEEE, 2018, 〈10.1109/SPAWC.2018.8446000〉
Liste complète des métadonnées

https://hal.archives-ouvertes.fr/hal-01912264
Contributeur : Zheng Li <>
Soumis le : lundi 5 novembre 2018 - 12:01:18
Dernière modification le : mercredi 7 novembre 2018 - 01:11:12

Identifiants

Citation

Sheng Yang, Zheng Li. A Constant-Gap Result on the Multi-Antenna Broadcast Channels with Linearly Precoded Rate Splitting. 2018 IEEE 19th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Jun 2018, Kalamata, Greece. IEEE, 2018, 〈10.1109/SPAWC.2018.8446000〉. 〈hal-01912264〉

Partager

Métriques

Consultations de la notice

30