TCP Delayed Acknowledgment Techniques for Low-power Multi-hop Wireless Networks
Ahmed Ayadi
Progress in Signals and Telecommunication Engineering, Vol. 2, No. 1, 2013.
DOI: 
Link: http://www.dline.info/pste/fulltext/v1n1/2.pdf
Abstract:
Currently, Transmission Control Protocol, which was originally proposed for wired networks, is deployed in multi-hop wireless networks that have memory and energy constraints. The high energy consumption is a strong constraint for the deployment of TCP in low-power multi-hop wireless networks, and especially for low-power and lossy networks such as 6LoWPANs. Some researchers say that TCP is not the bestsuited transport protocol for these kind of networks because of some TCP limitations such as end-to-end retransmissions and acknowledgment frequency. Recently, many works have been proposed to reduce significantly the amount of TCP acknowledgments in order to improve TCP performance. In this paper, we present a survey of recently TCP variants that were recently proposed to reduce the TCP acknowledgment. Thereafter, we present a comparative study of the most important solutions based on a metric that we have named energyefficiency, which takes into account not only the consumed energy but also the TCP throughput.