Capacity Enhancement Using Ad Hoc Pico-Cells and TDD Underlay

Author

Jain, Premvir K. ; Haas, Harald ; McLaughlin, Stephen

Author_Institution

Sch. of Eng. & Sci., Int. Univ. Bremen

fYear

2006

fDate

11-14 Sept. 2006

Firstpage

1

Lastpage

5

Abstract

This paper introduces a new technique for efficiently incorporating multihop communications in a wideband code division multiple access (WCDMA) system with a clustered user distribution. For each cluster of users a mobile station (MS) is selected as a gateway to act as a relay between the other MSs and the base station (BS). The under-used resources from the FDD (frequency division duplex) uplink band are utilized for communication within the cluster (TDD underlay). This model is simulated for a number of scenarios and scheduling algorithms. It is demonstrated that the proposed enhancements lead to an improvement in the spectral efficiency of the system of up to 50%

Keywords

ad hoc networks; broadband networks; code division multiple access; frequency division multiplexing; picocellular radio; time division multiplexing; TDD underlay; WCDMA; ad hoc pico-cells; base station; capacity enhancement; frequency division duplex; mobile station; multihop communications; scheduling algorithms; spectral efficiency; uplink band; wideband code division multiple access; Ad hoc networks; Base stations; Frequency conversion; Interference; Land mobile radio; Mobile communication; Multiaccess communication; Relays; Scheduling algorithm; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2006 IEEE 17th International Symposium on

Conference_Location

Helsinki

Print_ISBN

1-4244-0329-4

Electronic_ISBN

1-4244-0330-8

Type

conf

DOI

10.1109/PIMRC.2006.254177

Filename

4022371