TY - GEN
T1 - Dynamic spatial backoff in fading environments
AU - Chen, Zhongning
AU - Yang, Xue
AU - Vaidya, Nitin H.
PY - 2008
Y1 - 2008
N2 - We present a dynamic spatial backoff method to resolve channel contention in wireless ad-hoc networks. We argue that each node should adjust its receiver sensitivity level according to the mean channel gain of its particular transmitter-receiver link, in order to see the full benefit of spatial backoff and improve the throughput. We designed a distributed algorithm that adjusts each transmitters carrier sense threshold and transmission rate dynamically based on local information and limited receiver feedback, for wireless channels that have small-scale multipath fading. We evaluated the algorithm using different topologies, under various fading conditions. Results show that our algorithm is able to achieve aggregate throughput near or better than the maximum achievable by the static scheme, without a priori knowledge of the network topology or fading condition.
AB - We present a dynamic spatial backoff method to resolve channel contention in wireless ad-hoc networks. We argue that each node should adjust its receiver sensitivity level according to the mean channel gain of its particular transmitter-receiver link, in order to see the full benefit of spatial backoff and improve the throughput. We designed a distributed algorithm that adjusts each transmitters carrier sense threshold and transmission rate dynamically based on local information and limited receiver feedback, for wireless channels that have small-scale multipath fading. We evaluated the algorithm using different topologies, under various fading conditions. Results show that our algorithm is able to achieve aggregate throughput near or better than the maximum achievable by the static scheme, without a priori knowledge of the network topology or fading condition.
UR - http://www.scopus.com/inward/record.url?scp=67650667844&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67650667844&partnerID=8YFLogxK
U2 - 10.1109/MAHSS.2008.4660076
DO - 10.1109/MAHSS.2008.4660076
M3 - Conference contribution
AN - SCOPUS:67650667844
SN - 9781424425754
T3 - 2008 5th IEEE International Conference on Mobile Ad-Hoc and Sensor Systems, MASS 2008
SP - 255
EP - 264
BT - 2008 5th IEEE International Conference on Mobile Ad-Hoc and Sensor Systems, MASS 2008
T2 - 2008 5th IEEE International Conference on Mobile Ad-Hoc and Sensor Systems, MASS 2008
Y2 - 29 September 2008 through 2 October 2008
ER -