Providing Delay Guarantees and Power Saving in IEEE 802.11e Network

Recently, the 802.11e Working Group (WG) has proposed the Hybrid Coordination Function (HCF), which has a HCF Controlled Channel Access (HCCA) and an Enhanced Distributed Coordination Access (EDCA), in order to provide QoS in WLANs. In this paper an innovative HCCA-based algorithm, which will be referred to as Power Save Feedback Based Dynamic Scheduler (PS FBDS) providing bounded delays while ensuring energy saving, has been developed. The performance of PS FBDS has been extensively investigated using ns-2 simulations; results show that the proposed algorithm is able to provide a good trade-off between QoS and power saving at both low and high network loads.

[1]  Gennaro Boggia,et al.  Providing delay guarantees in IEEE 802.11e networks , 2004 .

[2]  Gennaro Boggia,et al.  Providing delay guarantees in IEEE 802.11e networks , 2004, 2004 IEEE 59th Vehicular Technology Conference. VTC 2004-Spring (IEEE Cat. No.04CH37514).

[3]  Yu-Chee Tseng,et al.  Minimize waiting time and conserve energy by scheduling transmissions in IEEE 802.11-based ad hoc networks , 2003, 10th International Conference on Telecommunications, 2003. ICT 2003..

[4]  Marco Conti,et al.  A Distributed Mechanism for Power Saving in IEEE 802.11 Wireless LANs , 2001, Mob. Networks Appl..

[5]  Mário Serafim Nunes,et al.  A scheduling algorithm for QoS support in IEEE802.11 networks , 2003, IEEE Wirel. Commun..

[6]  Nitin H. Vaidya,et al.  An energy efficient MAC protocol for wireless LANs , 2002, Proceedings.Twenty-First Annual Joint Conference of the IEEE Computer and Communications Societies.

[7]  Young-Bae Ko,et al.  Enhanced Power Saving Scheme for IEEE 802.11 DCF Based Wireless Networks , 2003, PWC.

[8]  Shiqi Wu,et al.  An adaptive RTS threshold adjust algorithm based on minimum energy consumption in IEEE 802.11 DCF , 2003, International Conference on Communication Technology Proceedings, 2003. ICCT 2003..

[9]  Jason Flinn,et al.  Self-Tuning Wireless Network Power Management , 2005, Wirel. Networks.

[10]  Giuseppe Anastasi,et al.  A performance study of power-saving polices for Wi-Fi hotspots , 2004, Comput. Networks.

[11]  Adam Wolisz,et al.  Power-saving mechanisms in emerging standards for wireless LANs: the MAC level perspective , 1998, IEEE Wirel. Commun..

[12]  Marco Conti,et al.  Optimization of Efficiency and Energy Consumption in p-Persistent CSMA-Based Wireless LANs , 2002, IEEE Trans. Mob. Comput..

[13]  Thierry Turletti,et al.  FHCF: A Fair Scheduling Scheme for 802.11e WLAN , 2003 .

[14]  Carla-Fabiana Chiasserini,et al.  An energy-efficient MAC layer scheme for 802.11-based WLANs , 2004, IEEE International Conference on Performance, Computing, and Communications, 2004.