Title :
Energy efficiency of radio link protocols in 3GPP systems
Author :
Chiasserini, Carla-Fabiana ; Meo, Michela
Author_Institution :
Dipt. di Elettronica, Politecnico di Torino, Italy
Abstract :
The paper deals with data transfer techniques at the link layer, which have been specified in 3GPP to preserve information integrity over the wireless link. We consider the acknowledged transfer mode, which implements a selective ARQ protocol. We enhance the 3GPP specification with a control mechanism of the transmitter activity that allows the system to save radio resources as well as energy in the case of bad channel conditions. In this way, we can obtain a significant energy saving at the expense of the provided QoS. By developing a Markovian model of the ARQ scheme, we study the protocol behavior as channel characteristics change and we find a trade-off between traffic QoS and energy efficiency
Keywords :
Markov processes; automatic repeat request; cellular radio; data communication; protocols; quality of service; radio links; telecommunication traffic; 3GPP specification; 3GPP systems; Markovian model; acknowledged transfer mode; channel characteristics; channel conditions; control mechanism; data transfer techniques; energy efficiency; energy saving; link layer; radio link protocols; radio resources; selective ARQ protocol; traffic QoS; transmitter activity; wireless link; Access protocols; Automatic repeat request; Control systems; Energy efficiency; GSM; Quality of service; Radio control; Radio link; Radio transmitters; Receivers;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd
Conference_Location :
Rhodes
Print_ISBN :
0-7803-6728-6
DOI :
10.1109/VETECS.2001.944074
