DocumentCode :
3424981
Title :
A Novel Cooperative NLOS Error Mitigation Method in Hybrid Cellular Networks
Author :
Lin, Xue ; Ju, Liu ; Chen, Sumei
Author_Institution :
Coll. of Phys. & Electron., Shan Dong Normal Univ., Jinan
fYear :
2008
fDate :
12-14 Oct. 2008
Firstpage :
1
Lastpage :
4
Abstract :
A novel mobile location method based on cooperative positioning using time-of-arrival (TOA) measurements to mitigate the impact of non-line-of-sight (NLOS) error in a hybrid cellular network is proposed. Our way to tackle the problem of NLOS error mitigation is divided into two steps: First, a technique is exploited to decide whether there is a NLOS path from the BS to the MS using range measurements sequence; Second, ad-hoc relaying stations (ARSs), which have single-hop line-of-sight (LOS) links with both the base stations (BSs) and the mobile station (MS), are included to establish a new position location scheme if NLOS error is present. Simulation results show that our proposed method can achieve location estimation accuracy enhancement and exhibit significant improvement over the conventional NLOS range reconstruction approach.
Keywords :
cellular radio; error statistics; mobility management (mobile radio); time-of-arrival estimation; cooperative NLOS error mitigation method; hybrid cellular networks; mobile location method; time-of-arrival measurements; Ad hoc networks; Cellular networks; Educational institutions; FCC; Land mobile radio cellular systems; Noise measurement; Position measurement; Relays; Time measurement; Wireless sensor networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-2107-7
Electronic_ISBN :
978-1-4244-2108-4
Type :
conf
DOI :
10.1109/WiCom.2008.24
Filename :
4677933
Link To Document :
بازگشت