Tipo di tesi
Tesi di laurea specialistica
Titolo
Energy efficient scheduling of VoIP traffic in IEEE 802.16 wireless networks
Corso di studi
INGEGNERIA INFORMATICA
Parole chiave
- ertPS
- Power Saving
- Sleep Mode
- VoIP
- WiMAX
Data inizio appello
10/07/2008
Consultabilità
Non consultabile
Data di rilascio
10/07/2048
Riassunto (Italiano)
WiMAX is the industry name given to the IEEE 802.16 standard, which provides fixed and mobile broadband wireless access in metropolitan areas.
In spite of the growing popularity of data services, voice services still remain the most requested, especially when mobility is concerned.
Mobile terminals are typically powered by rechargeable batteries with limited ca-pacity, hence the necessity to develop efficient power-saving mechanisms to im-prove the life span of the terminals.
The contribution of the present study is twofold. First, we design an energy-efficient scheduler for IEEE 802.16 connections using the enhanced real-time poll-ing service (ertPS) scheduling service, which is mostly intended for Voice over IP (VoIP) services. Then, we provide a detailed investigation of the performance of our contributed algorithm in terms of power saving and application metrics. The results show that the proposed algorithm is best fit to be used for VoIP traffic, rather than UGS and rtPS and that QoS requirements can be achieved even when a large amount of energy is saved.
