Title :
Energy-efficient packet access scheme for MF-TDMA in non-GEO satellite systems
Author :
Giambene, Giovanni ; Miano, Francesco ; Zoli, Enrico
Author_Institution :
Dipt. di Ingegneria dell´´Informazione, Univ. degli Studi di Siena, Italy
Abstract :
The paper deals with the proposal of an access protocol for the MF-TDMA air interface (i.e., resources in the time-frequency domain) to support multiple packet traffic classes in LEO and MEO satellite systems. A random access phase based on a persistency probability is adopted for each traffic class to gain the reservation of resources. We propose an optimization process for our packet access scheme where control parameters are selected to save the energy of the terminals. Comparisons with an energy-unaware access scheme have permitted us to highlight that our protocol entails a significant reduction of energy consumption, accepting a small performance degradation. This work has been carried out within both the SHINES Project (Prin 2002) and the SatNex Network of Excellence (n. 507052).
Keywords :
access protocols; energy conservation; mobile satellite communication; optimisation; packet radio networks; probability; resource allocation; telecommunication traffic; time division multiple access; LEO satellite systems; MEO satellite systems; MF-TDMA; access protocol; energy consumption; energy-efficient packet access scheme; energy-unaware access scheme; mobile terminals; multi frequency time division multiple access; nonGEO satellite systems; optimization; persistency probability; random access phase; resource reservation; time-frequency domain; traffic classes; Access protocols; Delay; Electronic mail; Energy consumption; Energy efficiency; Frequency conversion; Low earth orbit satellites; Proposals; Time division multiple access; Traffic control;
Conference_Titel :
Vehicular Technology Conference, 2004. VTC 2004-Spring. 2004 IEEE 59th
Print_ISBN :
0-7803-8255-2
DOI :
10.1109/VETECS.2004.1391430
