TY - GEN
T1 - A new dynamic scheme for efficient RTS threshold handling in wireless networks
AU - Mjidi, Mostafa
AU - Chakraborty, Debasish
AU - Nakamura, Naoki
AU - Koidef, Kazuhide
AU - Takeda, Atushi
AU - Shiratorif, Norio
PY - 2008
Y1 - 2008
N2 - Wireless network is an essential and integral part of the ubiquitous environment. For efficient access control, two different transmission schemes are used: The Basic Carrier Sensing Multiple Access with Collision Avoidance (CSMA/CA) and Request-To-Send/ Clear-To-Send (RTS/CTS) handshaking. The RTS/CTS handshaking addresses the hidden terminal problem as well as reduces the chance of collision in case of higher node density and traffic. However, in networks with low density, basic scheme would lead to higher throughput due to its less overhead. Efficient switching between these two schemes is imperative to maximize the throughput. We have first investigated to find a meaningful threshold value according to the network situation. The proposed algorithm then dynamically adjusts RTS Threshold according to the packet delivery ratio, which is an indicator of network traffic and shows a significant improvement over existing CSMA/CA and RTS/CTS schemes. Our adaptive scheme performed even better when data rates increases. We verify our proposed scheme with extensive network simulation using ns-2.
AB - Wireless network is an essential and integral part of the ubiquitous environment. For efficient access control, two different transmission schemes are used: The Basic Carrier Sensing Multiple Access with Collision Avoidance (CSMA/CA) and Request-To-Send/ Clear-To-Send (RTS/CTS) handshaking. The RTS/CTS handshaking addresses the hidden terminal problem as well as reduces the chance of collision in case of higher node density and traffic. However, in networks with low density, basic scheme would lead to higher throughput due to its less overhead. Efficient switching between these two schemes is imperative to maximize the throughput. We have first investigated to find a meaningful threshold value according to the network situation. The proposed algorithm then dynamically adjusts RTS Threshold according to the packet delivery ratio, which is an indicator of network traffic and shows a significant improvement over existing CSMA/CA and RTS/CTS schemes. Our adaptive scheme performed even better when data rates increases. We verify our proposed scheme with extensive network simulation using ns-2.
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U2 - 10.1109/AINA.2008.87
DO - 10.1109/AINA.2008.87
M3 - Conference contribution
AN - SCOPUS:50249098778
SN - 0769530958
SN - 9780769530956
T3 - Proceedings - International Conference on Advanced Information Networking and Applications, AINA
SP - 734
EP - 740
BT - Proceedings - 22nd International Conference on Advanced Information Networking and Applications, AINA 2008
T2 - 22nd International Conference on Advanced Information Networking and Applications, AINA 2008
Y2 - 25 March 2008 through 28 March 2008
ER -