Title :
A cross-layer energy-saving mechanism for an enhancement of 802.11 WLAN systems
Author :
Otal, Begonya ; Alonso, Luis
Author_Institution :
Philips Res. Lab., Aachen, Germany
Abstract :
Most multiple access collision avoidance-based (MAC) protocols for WLAN systems have been using fixed transmission power and have not considered energy-saving techniques targeted on channel estimation models. In order to prolong battery life and to improve the overall throughput performance of such systems, a novel PHY-MAC cross-layer energy-saving mechanism based on a distributed queuing MAC protocol and fuzzy logic theory is introduced for WLAN systems. Computer simulations have been performed and values for the throughput maximum performance and energy consumption have been obtained as a function of different scenario parameters. These values show that the throughput outperforms the one obtained with the IEEE 802.11 standard while reducing the energy consumption.
Keywords :
IEEE standards; access protocols; channel estimation; fuzzy logic; power consumption; queueing theory; telecommunication congestion control; telecommunication traffic; wireless LAN; IEEE 802.11 standard; PHY-MAC mechanism; WLAN; battery life; channel estimation models; collision avoidance-based protocols; cross-layer energy-saving mechanism; distributed queuing MAC protocol; energy consumption; fuzzy logic theory; multiple access protocols; throughput performance; Access protocols; Batteries; Channel estimation; Energy consumption; Fuzzy logic; Media Access Protocol; Power system modeling; Queueing analysis; Throughput; Wireless LAN;
Conference_Titel :
Vehicular Technology Conference, 2004. VTC 2004-Spring. 2004 IEEE 59th
Print_ISBN :
0-7803-8255-2
DOI :
10.1109/VETECS.2004.1390518
