TY - GEN
T1 - Finding an optimum maximum congestion window for TCP reno over 802.11 based ad hoc networks
AU - Li, Xia
AU - Kong, Peng Yong
AU - Chua, Kee Chaing
PY - 2007
Y1 - 2007
N2 - Bandwidth Delay Product (BDP) represents the maximum amount of allowed unacknowledged data in flight at any moment in the network. Due to the spatial reuse property of 802.11 MAC protocol in multi-hop ad hoc networks, the BDP of the path approximates 1/4 of the path length and is a value of several packets. With such a small BDP, TCP cannot work efficiently since its congestion window increases far beyond BDP most of the time, which can generate heavy congestion in the network. This paper presents a mathematical approach to derive an optimum maximum congestion window for TCP Reno over 802.11 based ad hoc networks. We adopt a Markov renewal approach to analyze the behavior of TCP Reno, which incorporates an accurate and realistic modelling of the fast-recovery process. Through analysis, we find that the optimum maximum congestion window is 6 packets for a multi-hop chain with any path length.
AB - Bandwidth Delay Product (BDP) represents the maximum amount of allowed unacknowledged data in flight at any moment in the network. Due to the spatial reuse property of 802.11 MAC protocol in multi-hop ad hoc networks, the BDP of the path approximates 1/4 of the path length and is a value of several packets. With such a small BDP, TCP cannot work efficiently since its congestion window increases far beyond BDP most of the time, which can generate heavy congestion in the network. This paper presents a mathematical approach to derive an optimum maximum congestion window for TCP Reno over 802.11 based ad hoc networks. We adopt a Markov renewal approach to analyze the behavior of TCP Reno, which incorporates an accurate and realistic modelling of the fast-recovery process. Through analysis, we find that the optimum maximum congestion window is 6 packets for a multi-hop chain with any path length.
UR - http://www.scopus.com/inward/record.url?scp=36348963171&partnerID=8YFLogxK
U2 - 10.1109/WCNC.2007.663
DO - 10.1109/WCNC.2007.663
M3 - Conference contribution
AN - SCOPUS:36348963171
SN - 1424406595
SN - 9781424406593
T3 - IEEE Wireless Communications and Networking Conference, WCNC
SP - 3622
EP - 3627
BT - 2007 IEEE Wireless Communications and Networking Conference, WCNC 2007
T2 - 2007 IEEE Wireless Communications and Networking Conference, WCNC 2007
Y2 - 11 March 2008 through 15 March 2007
ER -