Relay selection with feedback beamforming information for NLoS 60GHz MmWave WLANs/WPANs

Author

Hongyun Chu ; Pingping Xu

Author_Institution

Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing, China

fYear

2014

fDate

10-14 June 2014

Firstpage

5514

Lastpage

5519

Abstract

This paper proposes a novel relay selection strategy based on the feedback beamforming (BF) information for 60GHz millimeter-wave (mmWave) wireless communication systems under non-line-of-sight (NLoS) condition. First, an approach of collecting instantaneous channel state information (CSI) through overheard during BF is devised. Second, with the aim of maximizing overall network throughput capacity, the optimal relay selection issue for NLoS links is formulated as a bipartite graph, and the Kuhn Munkres (KM) algorithm is provided to resolve it. Third, both theoretical analysis and simulation results show that the improvements achieved over the best harmonic mean selection scheme in terms of overall network throughput capacity and outage probability.

Keywords

array signal processing; feedback; graph theory; personal area networks; relay networks (telecommunication); wireless LAN; BF information; CSI; KM algorithm; Kuhn Munkres algorithm; NLoS MmWave WLANs-WPANs; NLoS links; bipartite graph; feedback beamforming information; frequency 60 GHz; harmonic mean selection scheme; instantaneous channel state information collection; millimeter-wave wireless communication systems; network throughput capacity; nonline-of-sight condition; optical relay selection strategy; outage probability; Antennas; Bipartite graph; Fading; Harmonic analysis; Relays; Throughput; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications (ICC), 2014 IEEE International Conference on

Conference_Location

Sydney, NSW

Type

conf

DOI

10.1109/ICC.2014.6884199

Filename

6884199