Title :
Fast open-loop synchronization for cooperative distributed beamforming
Author :
Ning Xie ; Xu Bao ; Petropulu, A. ; Hui Wang
Author_Institution :
CIE, Shenzhen Univ., Shenzhen, China
Abstract :
This paper considers the problem of multiple distributed nodes in a wireless network wishing to join forces and cooperatively beamform data to a destination. Since the nodes are not physically connected and have independent oscillators, there are carrier frequency and phase errors that degrade the beamforming performance. This paper proposes a novel open-loop synchronization protocol, which exploits the broadcast nature of the wireless channel to achieve synchronization much faster than prior methods, with the difference increasing as the number of nodes increases.
Keywords :
array signal processing; broadcast channels; broadcast communication; cooperative communication; oscillators; protocols; radio networks; synchronisation; wireless channels; carrier frequency error; cooperative distributed beamforming; fast open-loop synchronization protocol; multiple distributed node; oscillator; phase error; wireless channel; wireless network; Array signal processing; Frequency estimation; Frequency synchronization; Protocols; Synchronization; Uplink; Wireless communication;
Conference_Titel :
Global Communications Conference (GLOBECOM), 2013 IEEE
Conference_Location :
Atlanta, GA
DOI :
10.1109/GLOCOM.2013.6831605