6,518 research outputs found
A review on routing protocols for application in wireless sensor networks
Wireless sensor networks are harshly restricted by storage capacity, energy
and computing power. So it is essential to design effective and energy aware
protocol in order to enhance the network lifetime. In this paper, a review on
routing protocol in WSNs is carried out which are classified as data-centric,
hierarchical and location based depending on the network structure. Then some
of the multipath routing protocols which are widely used in WSNs to improve
network performance are also discussed. Advantages and disadvantages of each
routing algorithm are discussed thereafter. Furthermore, this paper compares
and summarizes the performances of routing protocols.Comment: 20 pages, 16 figures, 2 table
Reliable Robust and Real-Time Communication Protocol for Data Delivery in Wireless sensor Networks
WSNs can be considered a distributed control system designed to react to
sensor information with an effective and timely action. For this reason, in
WSNs it is important to provide real-time coordination and communication to
guarantee timely execution of the right actions. In this paper a new
communication protocol RRRT to support robust real-time and reliable event data
delivery with minimum energy consumption and with congestion avoidance in WSNs
is proposed. The proposed protocol uses the fault tolerant optimal path for
data delivery. The proposed solution dynamically adjust their protocol
configurations to adapt to the heterogeneous characteristics of WSNs.
Specifically, the interactions between contention resolution and congestion
control mechanisms as well as the physical layer effects in WSNs are
investigated.Comment: 15 pages, 6 figure
An Adaptive and Multi-Service Routing Protocol for Wireless Sensor Networks
Wireless Sensor Networks (WSNs) are highly distributed networks consisting of
a large number of tiny, low-cost, light-weight wireless nodes deployed to
monitor an environment or a system. Each node in a WSN consists of three
subsystems: the sensor subsystem which senses the environment, the processing
subsystem which performs local computations on the sensed data, and the
communication subsystem which is responsible for message exchange with
neighboring sensor nodes. While an individual sensor node has limited sensing
region, processing power, and energy, networking a large number of sensor nodes
give rise to a robust, reliable, and accurate sensor network covering a wide
region. Thus, routing in WSNs is a very important issue. This paper presents a
query-based routing protocol for a WSN that provides different levels of
Quality of Service (QoS): energy-efficiency, reliability, low latency and
fault-tolerance-under different application scenarios. The algorithm has low
computational complexity but can dynamically guarantee different QoS support
depending on the requirement of the applications. The novelty of the proposed
algorithm is its ability to provide multiple QoS support without
reconfiguration and redeployment of the sensor nodes. The algorithm is
implemented in network simulator ns-2 and its performance has been evaluated.
The results show that the algorithm is more efficient than some of the
currently existing routing algorithms for WSNs.Comment: 6 pages, 8 figures. 16th IEEE Asia-Pacific Conference on
Communications (APCC) 2010, Auckland, New Zealand, October 31 - November 3,
201
A Delay Aware Routing Protocol for Wireless Sensor Networks
Wireless Sensor Networks (WSNs) consist of sensor nodes which can be deployed
for various operations such as agriculture and environmental sensing, wild life
monitoring, health care, military surveillance, industrial control, home
automation, security etc. Quality of Service (QoS) is an important issue in
wireless sensor networks (WSNs) and providing QoS support in WSNs is an
emerging area of research. Due to resource constraints nature of sensor
networks like processing power, memory, bandwidth, energy etc. providing QoS
support in WSNs is a challenging task. Delay is an important QoS parameter for
forwarding data in a time constraint WSNs environment. In this paper we propose
a delay aware routing protocol for transmission of time critical event
information to the Sink of WSNs. The performance of the proposed protocol is
evaluated by NS2 simulations under different scenarios.Comment: 6 Pages, 8 Figures, journa
Real Time and Energy Efficient Transport Protocol for Wireless Sensor Networks
Reliable transport protocols such as TCP are tuned to perform well in
traditional networks where packet losses occur mostly because of congestion.
Many applications of wireless sensor networks are useful only when connected to
an external network. Previous research on transport layer protocols for sensor
networks has focused on designing protocols specifically targeted for sensor
networks. The deployment of TCP/IP in sensor networks would, however, enable
direct connection between the sensor network and external TCP/IP networks. In
this paper we focus on the performance of TCP in the context of wireless sensor
networks. TCP is known to exhibit poor performance in wireless environments,
both in terms of throughput and energy efficiency. To overcome these problems
we introduce a mechanism called TCP Segment Caching .We show by simulation that
TCP Segment Caching significantly improves TCP Performance so that TCP can be
useful e en in wireless senso
Link and Location Based Routing Mechanism for Energy Efficiency in Wireless Sensor Networks
In Wireless Sensor Networks, sensed data are reported to the sink by the
available nodes in the communication range. The sensed data should be reported
to the sink with the frequency expected by the sink. In order to have a
communication between source and sink, Link based routing is used. Link based
routing aims to achieve an energy efficient and reliable routing path. This
mechanism considers the status (current energy level in terms of Joules) of
each node, link condition (number of transmissions that the Cluster Head
(CH)and the Gateway (GW) candidates conducts) and the transmit power (power
required for transmission in terms of Joules). A metric called Predicted
Transmission Count (PTX) for each node is calculated using its status, link
condition and transmit power. The node which has highest PTX will have the
highest priority and it will be the potential candidate to act as CH or GW.
Thus the selection of proper CH or GW reduces the energy consumption, and the
network lifetime is increased.Comment: 6 pages, 3 figure
Comparative Analysis of Routing Protocols for Under Water Wireless Sensor Networks
Underwater Wireless Sensor Networks are significantly different from
terrestrial sensor networks due to peculiar characteristics of low bandwidth,
high latency, limited energy, node float mobility and high error probability.
These features bring many challenges to the network protocol design of UWSNs.
Several routing protocols have been developed in recent years for these
networks. One of the major difficulties in comparison and validation of the
performance of these proposals is the lack of a common standard to model the
acoustic propagation in the harsh underwater environment. In this paper we
analyze the evolution of certain underwater routing protocols like VBF, DBR,
H2-DAB, QELAR etc. in terms of their localization techniques, energy
minimization characteristics and holding time calculations. The design of each
protocol follows certain goals i.e. reduction of energy consumption,
improvement of communication latency, achievement of robustness and scalability
etc. This paper examines the main approaches and challenges in the design and
implementation of underwater sensor networks. The detailed descriptions of the
selected protocols contribute in understanding the direction of the current
research on routing layer in UWSN
Real Time scheduling with Virtual Nodes for Self Stabilization in Wireless Sensor Networks
In this paper we propose a new scheduling algorithm called Real Time
Scheduling (RTS) which uses virtual nodes for self stabilization. This
algorithm deals with all the contributing components of the end-to-end
travelling delay of data packets in sensor network and with virtual nodes
algorithm achieves QoS in terms of packet delivery, multiple connections,
better power management and stable routes in case of failure. RTS delays
packets at intermediate hops (not just prioritizes them) for a duration that is
a function of their deadline. Delaying packets allows the network to avoid hot
spotting while maintaining deadline-faithfulness. We compare RTS with another
prioritizing and scheduling algorithm for real-time data dissemination in
sensor networks, velocity monotonic scheduling. This paper simulates RTS based
on two typical routing protocols, shortest path routing and greedy forwarding
with J-Sim.Comment: arXiv admin note: substantial text overlap with arXiv:cs/0608069 by
other authors without attributio
Reliable Group Communication Protocol for Internet of Things
In this paper, we propose RECOUP, a reliable group communication routing
protocol for IoT networks. RECOUP efficiently uses a low-overhead cluster-based
multicast routing technique on top of the RPL protocol. RECOUP increases the
probability of message delivery to the intended destination(s), irrespective of
the network size and faults (such as broken links or non-responsive nodes), and
in the presence of misbehaving nodes.We show that the cluster-based routing
mechanism of RECOUP remains robust in presence of various topology (i.e., rank
and sybil) and data communication (i.e., blackhole, wormhole, and jamming)
attacks targeting the IoT networking infrastructure.An implementation of RECOUP
is realized in Contiki. Our results show the effectiveness of RECOUP over
state-of-art protocols concerning packet delivery ratio to 25%, end-to-end
delay down to 100 ms, low radio transmissions required for per packet delivery
to 6 mJ, and most importantly, it improves the robustness and scalability of
data communication process in thewhole network.Comment: 14 Pages, 11 Figure
Geographic routing protocols for underwater wireless sensor networks:a survey
Underwater wireless sensor networks (UWSN), similar to the terrestrial sensor
networks, have different challenges such as limited bandwidth, low battery
power, defective underwater channels, and high variable propagation delay. A
crucial problem in UWSN is finding an efficient route between a source and a
destination. Consequently, great efforts have been made for designing efficient
protocols while considering the unique characteristics of underwater
communication. Several routing protocols are proposed for this issue and can be
classified into geographic and non-geographic routing protocols. In this paper
we focus on the geographic routing protocols. We introduce a review and
comparison of different algorithms proposed recently in the literature. We also
presented a novel taxonomy of these routing in which the protocols are
classified into three categories (greedy, restricted directional flooding and
hierarchical) according to their forwarding strategies.Comment: 19 pages, IJWMN journa
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