Title :
Combining space-time coding with power-efficient medium access control for mobile ad-hoc networks
Author :
Farha, Ramy F. ; Adve, Raviraj S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada
Abstract :
This paper investigates the impact of space-time coding on an IEEE 802.11a based power-efficient medium access control (MAC) protocol in a mobile ad hoc network (MANET). The new MAC protocol, MAC-2, preserves energy by sending information at the minimum power needed to reach the destination with a specified packet error rate (PER). The analysis of space-time coding is conducted in practical environments, including spatial correlations between the fades connecting the transmitter and receiver antenna elements. Combining improvements in the physical layer with the new MAC-2 protocol leads to tremendous savings in power and increase in overall network throughput, while maintaining a basic quality of service.
Keywords :
access protocols; ad hoc networks; mobile radio; quality of service; receiving antennas; space-time codes; transmitting antennas; wireless LAN; IEEE 802.11a; MAC-2 protocol; medium access control protocol; mobile ad-hoc networks; packet error rate; quality of service; receiver antenna elements; space-time coding; spatial correlations; transmitter antenna elements; Access protocols; Ad hoc networks; Error analysis; Joining processes; Media Access Protocol; Mobile ad hoc networks; Physical layer; Receiving antennas; Transmitters; Transmitting antennas;
Conference_Titel :
Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE
Print_ISBN :
0-7803-7974-8
DOI :
10.1109/GLOCOM.2003.1258209
