PTCP: phase-divided TCP congestion control scheme in wireless sensor networks

Authors:
Lujiao Li;Yun Li;Qianbin Chen;Neng Nie
Affiliations:
Special Research Centre for Optical Internet & Wireless, Information Networks, Chongqing University of Posts & Telecommunications, Chongqing, China;Special Research Centre for Optical Internet & Wireless, Information Networks, Chongqing University of Posts & Telecommunications, Chongqing, China;Special Research Centre for Optical Internet & Wireless, Information Networks, Chongqing University of Posts & Telecommunications, Chongqing, China;Special Research Centre for Optical Internet & Wireless, Information Networks, Chongqing University of Posts & Telecommunications, Chongqing, China
Venue:
MSN'07 Proceedings of the 3rd international conference on Mobile ad-hoc and sensor networks
Year:
2007

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Abstract

In wireless sensor networks (WSNs), congestion may occur when sensor nodes are densely distributed and/or burst a mass of data flows, the congestion tends to cause packet loss, which sequentially causes lower throughput and wastes energy. To address this challenge this paper proposes a new congestion control scheme, Phase-divided TCP (PTCP), for wireless sensor networks. It controls the congestion through phase-divided adjusting of the growth rate of the TCP window in the slow-start. Our simulation results demonstrate that the proposed scheme can dramatically resolve congestion control problem, and improve TCP performance of wireless sensor networks.