Fixed power allocation with nulling for TDD-based cellular uplink

Author

Jung, Bang Chul ; Hong, Young-Jun ; Sung, Dan Keun ; Chung, Sae-Young

Author_Institution

KAIST, Daejeon

Volume

12

Issue

4

fYear

2008

fDate

4/1/2008 12:00:00 AM

Firstpage

253

Lastpage

255

Abstract

We propose two fixed power allocation schemes with nulling (FPA-N1 and FPA-N2) for time division duplex (TDD) based cellular uplink according to the location of mobile stations (MSs). In the FPA-N1 scheme, MSs located near a base station (BS) do not transmit data when the wireless channels between the MSs and their home cell BS experience deep fading. In the FPA-N2 scheme, MSs located near cell boundaries do not transmit data when the wireless channels between the MSs and neighboring cell BSs cause high interference channel gain because, in this case, their data transmission may induce large interference to neighboring cells. Numerical results show that the proposed power allocation scheme improves the uplink capacity in cellular networks.

Keywords

cellular radio; channel capacity; time division multiplexing; wireless channels; base station; cellular networks; cellular uplink; fixed power allocation; interference channel; mobile stations; time division duplex; wireless channels; Base stations; Channel capacity; Data communication; Digital communication; Fading; Interference channels; Land mobile radio cellular systems; Power system modeling; Radio transmitters; Resource management;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2008.080003

Filename

4489658