دانلود مقاله An Improvement on Route Recovery by Using Triangular Fuzzy Numbers on Route Errors in MANET

IOSR Journal of Computer Engineering (IOSR-JCE)
e-ISSN: 2278-0661, p- ISSN: 2278-8727Volume 16, Issue 1, Ver. II (Jan. 2014), PP 75-79

Sara Aliabadi¹, Mehdi Agha Sarram¹

Abstract: Based on mobile nature in MANET, there is no doubt that all routing protocols have some route errors. Usually, routing protocols try to recover a route after a route error has been happened on an exact route to destination. This kind of route recovery could make more packet loss and also more time waste. This project adds Triangular Fuzzy Numbers to prediction of route errors and make route recovery as parallel of packet sending. Indeed, any node in this project uses a route error counter and an error prediction based on Fuzzy algorithm to recover its routes before an exact route error on its route discovery has been happened. There is no doubt that using suggested prediction cannot solve all route errors; but it could help routing protocols to improve their route recovery algorithm.This project uses DSR as one of the standard MANET routing protocols to simulate the results.

Keywords: MANET, Fuzzy, Triangular Numbers, DSR, Routing

دانلود مقاله All-to-all data dissemination with network coding in dynamic MANETs - انتشار 2014

Contents lists available at ScienceDirect
Computer Networks

Péter Vingelmann a,b
, Janus Heide b
, Morten Videbæk Pedersen b
, Qi Zhang c
,
Frank H.P. Fitzek b

a b s t r a c t
This paper investigates the problem of efficient data dissemination in Mobile Ad hoc NETwork
(MANETs). A testbed is presented; which provides a realistic degree of mobility in
experiments. The testbed consists of ten autonomous robots with mobile phones mounted
on them. The mobile phones form an IEEE 802.11g ad hoc network to communicate with
each other. A dynamic network topology is assumed, where the mobile devices form a
cooperative cluster in order to communicate directly with each other. In the investigated
scenario, the initial state is that each device carries a unique fragment of the full data
set, and the goal is to exchange this data set among all devices. Several alternative strategies
are presented that use UDP broadcast transmissions and Random Linear Network Coding
(RLNC) to facilitate the efficient exchange of information in the wireless network. An
application is introduced; which implements these strategies on Nokia phones. Results collected
during an extensive measurement campaign are presented, and the performance of
several strategies is compared using numerous metrics. We observe that network coding
can substantially reduce the completion time in our scenario, which also leads to significant
energy savings.