Mobile Ad hoc Networks (MANETs) are
becoming more essential to wireless communications due to
growing popularity of mobile devices. On-demand video
streaming over wireless networks is an increasingly
important and attractive service to the mobile users.
However, MANETs do not seem to effectively support
multimedia applications and especially video transmission
due to certain limitations like rapidly changing connectivity,
network partitions, high error rates, collisions, limited
bandwidth and power constraints. In this paper, we proposed
and implemented EMRP_R (an Efficient Multipath Routing
Protocol with Replication) based on the forecasting of
parameters of nodes or routes that effect the performance for
on-demand video streaming in MANETs. The main objective
of the proposed work is to provide a smooth on-demand
video streaming with minimum packet loss. Simulation was
carried out in NS2 and the results obtained show that the
proposed approach will improve the quality of on-demand
video streaming when compared to the other existing
approaches.
R. Raja Sekhar : receivedB.Tech degree in Computer Science and
Engineering in 1999 from S.V. University, Tirupati, M.Tech degree
in Computer Science from JNTU, Hyderabad in the year 2006 and
currently pursuing Ph.D. in JNTUA, Anantapuramu, A.P., India. He
has been working Assistant Professor in JNTUA College of
Engineering, Anantapuramu, India since 2006. His research
interests include mobile adhoc networks, data structures and
algorithms.
Dr. P. Chenna Reddy : is a Professor of CSE in JNTUA,
Anantapuramu, A.P., India. He is currently working as Director of
Industrial Relations and Placements, Distance Education at
JNTUA, Anantapuramu. He has 18 years of experience in
Teaching. His area of specialization is Computer Networks. He is
the member of the professional bodies Institution of Engineers-
India, Computer Society of India, Institute of Electrical and
Electronics Engineers, and Indian Society for Technical Education.
He is the recipient of RashtraPratibha Puraskar award from
Integrated Council for Socio-Economic Progress.
MANETs; Multimedia Applications, On-Demand
Video Streaming, Multipath Routing, Replication
In this paper, we proposed a dynamic node disjoint
multipath routing with replication scheme for on-demand
video streaming inMANETs based on AODV protocol.
The proposed approach takes three vital parameters,
namely node’s residual energy, stability and traffic load,
into account for constructing node disjoint multipath
routes. This approach uses a primary and a secondary
route to deliver video data packets, so that it avoids packet
losses which are caused by using only one route. Due to
multiple routes available in routing video data, video data
is always made available for the receiver node even though
one of the routes is broken. The replication scheme is used
to store the replica of the packets at the one hop neighbor
to the destination in the secondary route. Simulation
results show that the proposed approach is able to provide
high packet delivery ratio and good video quality by
keeping packets available all the time to the receiver. The
approach may be extended to improve the availability of
the video data packets more even in the situation where the
nodes storing the replicas are moved away from the
receiver.
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