An Improvement in Congestion Control Using Multipath Routing in Manet

The ad hoc connections, which opens many opportunities for MANET applications. In ad hoc network nodes are movable and there is no centralised management. Routing is an important factor in mobile ad hoc network which not only works well with a small network, but also it can also work well if network get expanded dynamically. Routing in Manets is a main factor considered among all the issues. Mobile nodes in Manet have limited transmission capacity, they intercommunicate by multi hop relay. Multi hop routing have many challenges such as limited wireless bandwidth, low device power, dynamically changing network topology, and high vulnerability to Failure. To answer those challenges, many routing algorithms in Manets were proposed. But one of the problems in routing algorithm is congestion which decreases the overall performance of the network so in this paper we are trying to identify the best routing algorithm which will improve the congestion control mechanism among all the Multipath routing protocols

An Improvement in Congestion Control Using Multipath Routing in MANET

The ad hoc connections, which opens many opportunities for MANET applications. In ad hoc network nodes are movable and there is no centralised management. Routing is an important factor in mobile ad hoc network which not only works well with a small network, but also it can also work well if network get expanded dynamically. Routing in Manets is a main factor considered among all the issues. Mobile nodes in Manet have limited transmission capacity, they intercommunicate by multi hop relay. Multi hop routing have many challenges such as limited wireless bandwidth, low device power, dynamically changing network topology, and high vulnerability to Failure. To answer those challenges, many routing algorithms in Manets were proposed. But one of the problems in routing algorithm is congestion which decreases the overall performance of the network so in this paper we are trying to identify the best routing algorithm which will improve the congestion control mechanism among all the Multipath routing protocols. Keywords: Disjoint Multipath, Multi hop, reliability, Congestion Control, Optimizatio

Experimental assessment of a wireless communications platform for the built and natural heritage

Wireless sensor networks have become extremely popular in a number of fields in recent years, the cultural heritage among them. To date, however, communications quality has not been technically validated in any of the various built (churches, museums, archaeological sites) or natural (caves, lava tubes) heritage scenarios. The present study establishes methodology for assessing the quality of wireless communications and validating the network used, both of which are essential to guaranteeing accurate long-term monitoring in heritage scenarios. Parameters such as signal strength, link quality, range and success rate were analysed with a view to preventing transmission failure and ensuring reliable monitoring for the preventive conservation of the cultural heritage.The present study was funded under projects CGL2011-27902, GEOMATERIALES 2 (S2013/MIT-2914).Peer reviewe

Multipath Fresnel Zone Routing for Wireless Ad Hoc Networks

Prior research in routing for wireless ad hoc networks has shown that multipath routing can enhance data delivery reliability and provide load balancing. Nevertheless, only a few multipath routing algorithms have been proposed and their interaction with transport layer protocols has not been thoroughly addressed in the literature. In thi

Performance analysis of weather s impact on outdoor IEEE 802.11b/g links using network management parameters

Some previous works concluded that weather conditions impact on the performance of outdoor IEEE 802.11b/g links. They show high correlation coefficients between the number of control frame errors and the weather conditions. However, these previous studies do not consider grouping weather conditions into ranges and it would provide very valuable information in this issue. Knowing the weather conditions ranges where the weathers' impact is really significant would be very useful for future outdoor networks. Thus, we have carried out a deep study on an experimental IEEE 802.11b/g setup in order to extract real conclusions. It is composed of two outdoor radio links of different lengths transmitting traffic continuously. Results show that in spite of covering a lower distance, the short distance link is more susceptible to the weather conditions. It is due to the modulation scheme used in that case. Moreover, they show different correlation coefficients depending on the groupings of weather conditions.This work has been supported by the "Vicerectorat d'investigacio" through the "Programa para la Formacion de Personal Investigador" of the UPV (FPI-UPV). The authors would like to thank the Information and Communications Systems Office (ASIC), Borja Opticos Enterprise and Azimut Electronics Company for their collaboration and support.Bri Molinero, D.; García Pineda, M.; Lloret, J.; Ramos Pascual, F. (2016). Performance analysis of weather s impact on outdoor IEEE 802.11b/g links using network management parameters. 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