TY - GEN
T1 - A power control scheme for MANETs with improved throughput and energy consumption
AU - Krunz, Marwan
AU - Muqattash, Alaa
N1 - Publisher Copyright:
© 2002 IEEE.
PY - 2002
Y1 - 2002
N2 - We propose a new power-control protocol for medium access control (MAC) in mobile ad hoc networks. Compared with the IEEE 802.11 approach, the proposed protocol achieves significant improvement in both throughput and energy consumption. The protocol relies on dynamic adjustment of the data-packet transmission power, while maintaining a fixed (maximum) transmission power for control (RTS/CTS) packets. Furthermore, it allows nodes to control the transmission power of the route request (RREQ) packets, which indirectly influences the next-hop selection at the upper routing layer. This is done by dynamically computing a node-dependent connectivity set. RREQ packets are broadcasted only to nodes within the connectivity set The connectivity set guarantees the node's connectivity to the rest of the network, while at the same time enabling a simple (minhop) routing algorithm to provide power-efficient routes. Channel gain and directional information obtain from overheard RTS/CTS exchanges are used to compute the connectivity set Our protocol allows for concurrent yet interference-limited transmissions to take place in the vicinity of a receiver. A modified RTS/CTS exchange allows nodes to broadcast their interference margins and requested transmission powers.
AB - We propose a new power-control protocol for medium access control (MAC) in mobile ad hoc networks. Compared with the IEEE 802.11 approach, the proposed protocol achieves significant improvement in both throughput and energy consumption. The protocol relies on dynamic adjustment of the data-packet transmission power, while maintaining a fixed (maximum) transmission power for control (RTS/CTS) packets. Furthermore, it allows nodes to control the transmission power of the route request (RREQ) packets, which indirectly influences the next-hop selection at the upper routing layer. This is done by dynamically computing a node-dependent connectivity set. RREQ packets are broadcasted only to nodes within the connectivity set The connectivity set guarantees the node's connectivity to the rest of the network, while at the same time enabling a simple (minhop) routing algorithm to provide power-efficient routes. Channel gain and directional information obtain from overheard RTS/CTS exchanges are used to compute the connectivity set Our protocol allows for concurrent yet interference-limited transmissions to take place in the vicinity of a receiver. A modified RTS/CTS exchange allows nodes to broadcast their interference margins and requested transmission powers.
KW - 802.11
KW - Power control
KW - Wireless ad hoc
UR - http://www.scopus.com/inward/record.url?scp=26044471317&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=26044471317&partnerID=8YFLogxK
U2 - 10.1109/WPMC.2002.1088280
DO - 10.1109/WPMC.2002.1088280
M3 - Conference contribution
AN - SCOPUS:26044471317
T3 - International Symposium on Wireless Personal Multimedia Communications, WPMC
SP - 771
EP - 775
BT - 5th International Symposium on Wireless Personal Multimedia Communications, WPMC 2002 - Proceedings
PB - IEEE Computer Society
T2 - 5th International Symposium on Wireless Personal Multimedia Communications, WPMC 2002
Y2 - 27 October 2002 through 30 October 2002
ER -