Title :
Joint Methods of Cell Searching and DoA Estimation for a Mobile Relay Station with Multiple Antennas
Author :
Ko, Yo-Han ; Park, Chang-Hwan ; Cho, Yong-Soo
Author_Institution :
Sch. of Electr. & Electron. Eng., Chung-Ang Univ., Seoul
Abstract :
In this paper, a mobile relay station (MRS) for vehicles with beamforming antennas is considered to increase the reliability of transmission link, especially for the MRS at cell boundary. Joint methods for cell searching and DoA estimation are proposed to form a beam in the direction of target BS while nulling interferences from adjacent BSs, especially for IP- based cellular systems employing break-before-make handover or make-before-break handover. The proposed cell searching and DoA estimation methods are evaluated by computer simulation under the environment of IEEE 802.16e (WiBro).
Keywords :
antennas; direction-of-arrival estimation; mobile radio; DoA estimation; IEEE 802.16e; IP-based cellular systems; WiBro; beamforming antennas; break-before-make handover; cell searching; computer simulation; direction-of-arrival estimation; make-before-break handover; mobile relay station; multiple antennas; transmission link; vehicles; Antennas and propagation; Array signal processing; Computer simulation; Direction of arrival estimation; Interference; Mobile antennas; Receiving antennas; Relays; Transmitting antennas; Vehicles;
Conference_Titel :
Global Telecommunications Conference, 2008. IEEE GLOBECOM 2008. IEEE
Conference_Location :
New Orleans, LO
Print_ISBN :
978-1-4244-2324-8
DOI :
10.1109/GLOCOM.2008.ECP.889
