Automatic rate adaptation and energy-saving mechanisms based on cross-layer information for packet-switched data networks

Author

Alonso, Luis ; Agusti, Ramon

Author_Institution

Univ. Politecnica de Catalunya, Barcelona, Spain

Volume

42

Issue

3

fYear

2004

fDate

3/1/2004 12:00:00 AM

Abstract

A set of novel PHY-MAC mechanisms based on a cross layer dialogue have been proposed, and their performance has been analyzed. System efficiency improvement is achieved by means of automatic transmission rate adaptation, trading off bit rate for power, with resulting energy saving features in a generic packet-switched CDMA access network. The rate adaptation mechanism improves spectrum efficiency while keeping packet delay minimized. On the other hand, power dependent strategies reduce power consumption and intercell interference. Simulation results show that the benefits obtained are very encouraging, so the proposed schemes could be used in future communication systems.

Keywords

4G mobile communication; cellular radio; code division multiple access; packet radio networks; packet switching; 4G mobile communications; CDMA access network; PHY-MAC mechanisms; automatic transmission rate adaptation; cellular radio system; code division multiple access; cross layer dialogue; cross-layer information; energy-saving mechanisms; intercell interference; medium access control; packet delay; packet-switched data networks; physical layer level; power efficiency; spectrum efficiency; Access protocols; Base stations; Batteries; Broadcasting; Data communication; Downlink; Media Access Protocol; Multiaccess communication; Radio communication; Telecommunication traffic;

fLanguage

English

Journal_Title

Communications Magazine, IEEE

Publisher

ieee

ISSN

0163-6804

Type

jour

DOI

10.1109/MCOM.2004.1273769

Filename

1273769