6 research outputs found
TCP over low-power and lossy networks: tuning the segment size to minimize energy consumption
Low-power and Lossy Networks (LLNs), like wireless networks based upon the
IEEE 802.15.4 standard, have strong energy constraints, and are moreover
subject to frequent transmission errors, not only due to congestion but also to
collisions and to radio channel conditions. This paper introduces an analytical
model to compute the total energy consumption in an LLN due to the TCP
protocol. The model allows us to highlight some tradeoffs as regards the choice
of the TCP maximum segment size, of the Forward Error Correction (FEC)
redundancy ratio, and of the number of link-layer retransmissions, in order to
minimize the total energy consumption.Comment: TELECOM Bretagne Research Repor
New adaptation method based on cross layer and TCP over protocols to improve QoS in mobile ad hoc network
Due to rapid growth of multimedia traffic used over the mobile ad-hoc networks (MANETs), to keep up with the progress of this constraints MANETs protocols becoming increasingly concerned with the quality of service. In view of the random mobility nodes in MANET, TCP becomes more unreliability in case of higher energy consumption and packet loss. In this paper we proposed a new optimization approach to enhance decision making of TCP based on some changes of IEEE 802.11 MAC uses cross layer approach. The aim is to minimize the impact of retransmissions of packet lost and energy consumption in order to analysed and chose the appropriate routing protocol for TCP that can be enhance QoS MANET. Our simulation results based QoS study using NS3 show that, our proposed achieves better performance of TCP in MANETs significantly, and also improved the throughput, energy consumption and facilitates the traffic transmission over routing protocol
A Survey of Green Networking Research
Reduction of unnecessary energy consumption is becoming a major concern in
wired networking, because of the potential economical benefits and of its
expected environmental impact. These issues, usually referred to as "green
networking", relate to embedding energy-awareness in the design, in the devices
and in the protocols of networks. In this work, we first formulate a more
precise definition of the "green" attribute. We furthermore identify a few
paradigms that are the key enablers of energy-aware networking research. We
then overview the current state of the art and provide a taxonomy of the
relevant work, with a special focus on wired networking. At a high level, we
identify four branches of green networking research that stem from different
observations on the root causes of energy waste, namely (i) Adaptive Link Rate,
(ii) Interface proxying, (iii) Energy-aware infrastructures and (iv)
Energy-aware applications. In this work, we do not only explore specific
proposals pertaining to each of the above branches, but also offer a
perspective for research.Comment: Index Terms: Green Networking; Wired Networks; Adaptive Link Rate;
Interface Proxying; Energy-aware Infrastructures; Energy-aware Applications.
18 pages, 6 figures, 2 table