TY - GEN
T1 - A proposal of fixed backoff-time switching method by link activation rate for wireless mesh networks
AU - Tajima, Shigeto
AU - Funabiki, Nobuo
AU - Higashino, Teruo
PY - 2011
Y1 - 2011
N2 - As an inexpensive and scalable access network to the Internet, we have extensively studied the Wireless Internet-access Mesh Network (WIMNET) that is composed of multiple access points (APs) connected through wireless links. Because most traffic in WIMNET passes through the gateway (GW) to the Internet, the links around the GW are much crowded so that they should be activated with higher priorities than others. In this paper, we propose the Fixed Back off-time Switching (CSMA-FBS) method for WIMNET using the CSMA/CA protocol to improve the performance by giving necessary activation chances to such links. Before starting communications, the target link activation rate and the active/passive back off-times for collision avoidance are calculated from the expected traffic load for each link. During communications, these back off-times are switched by comparing the actual link activation rate with the target one. By assigning different fixed values to these back off-times, the conflicts among the interfered links can be avoided. Through extensive simulations using two types of network topologies, we verify the effectiveness of our proposal.
AB - As an inexpensive and scalable access network to the Internet, we have extensively studied the Wireless Internet-access Mesh Network (WIMNET) that is composed of multiple access points (APs) connected through wireless links. Because most traffic in WIMNET passes through the gateway (GW) to the Internet, the links around the GW are much crowded so that they should be activated with higher priorities than others. In this paper, we propose the Fixed Back off-time Switching (CSMA-FBS) method for WIMNET using the CSMA/CA protocol to improve the performance by giving necessary activation chances to such links. Before starting communications, the target link activation rate and the active/passive back off-times for collision avoidance are calculated from the expected traffic load for each link. During communications, these back off-times are switched by comparing the actual link activation rate with the target one. By assigning different fixed values to these back off-times, the conflicts among the interfered links can be avoided. Through extensive simulations using two types of network topologies, we verify the effectiveness of our proposal.
KW - Wireless mesh network
KW - fixed backoff-time
KW - link activation rate
KW - switching
UR - http://www.scopus.com/inward/record.url?scp=80052749539&partnerID=8YFLogxK
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U2 - 10.1109/CISIS.2011.108
DO - 10.1109/CISIS.2011.108
M3 - Conference contribution
AN - SCOPUS:80052749539
SN - 9780769543734
T3 - Proceedings of the International Conference on Complex, Intelligent and Software Intensive Systems, CISIS 2011
SP - 647
EP - 652
BT - Proceedings of the International Conference on Complex, Intelligent and Software Intensive Systems, CISIS 2011
T2 - 5th International Conference on Complex, Intelligent and Software Intensive Systems, CISIS 2011
Y2 - 30 June 2011 through 2 July 2011
ER -