Performance Analysis of Cellular System Enhanced with Two-Hop Fixed Relay Nodes

Author

Li, Ping ; Rong, Mengtian ; Xue, Yisheng ; Wang, Lan ; Schulz, Egon

Author_Institution

Dept. of Electron. Eng., Shanghai Jiao Tong Univ.

fYear

2007

fDate

22-25 April 2007

Firstpage

929

Lastpage

933

Abstract

Digital relaying is a promising technique to improve the signal quality in the future wireless network. A scheme of two-hop cellular network with fixed relay nodes (FRN) is investigated in this paper. Based on this scheme, signal to interference ratio (SIR) received by base station (BS) and FRN are analyzed. Theoretical analysis and simulation results show that the SIR and system spectral efficiency can be improved significantly when FRNs are employed in cellular system. We also show that the antenna height of FRN and the cell radius of BS and that of FRN influence SIR received by BS and FRN and the system spectral efficiency greatly. The proper antenna height of FRN and cell radius of BS and that of FRN are also given in this paper. Finally, the problems with current frequency planning are discussed.

Keywords

cellular radio; frequency allocation; SIR; cellular system; digital relaying; frequency planning; signal to interference ratio; spectral efficiency; two-hop fixed relay nodes; Analytical models; Base stations; Digital relays; Frequency; Interference; Land mobile radio cellular systems; Performance analysis; Receiving antennas; Signal analysis; Wireless networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2007. VTC2007-Spring. IEEE 65th

Conference_Location

Dublin

ISSN

1550-2252

Print_ISBN

1-4244-0266-2

Type

conf

DOI

10.1109/VETECS.2007.200

Filename

4212628