دانلود مقاله An Error-Aware Routing Protocol over Lossy Links in Wireless Sensor Networks

Liankuan Zhanga, Deqin Xiaob,

Procedia Engineering 29 (2012) 1492 – 1500

Available online at www.sciencedirect.com 

SciVerse ScienceDirect

Abstract
As Bit errors fluctuate wildly in different environments and they fluctuate steadily for a given
pair of sensor nodes, we propose an error-aware routing protocol (EARP). Compared to other
estimators, bit errors can directly reflect the wireless channel state and can be used in complex
regions. In this paper, we use parameter VerValue to choose appropriate correction codes and
translate error degree to ER Dis(error distance). We propose local Dijkstra algorithm (LDA) in
ER Dis graph, witch is a distributed routing protocol algorithm and can be easily implemented
in WSNs, to choose a short ER Dis path for very sensor node. Simulation shows that compared
to different routing protocol schemes, LDA can choose an efficient path to the base station and
EARP scheme can indeed greatly reduce transmission energy and prolong WSNs lifetime.
Keywords:
Wireless sensor networks, Lossy links, Error rate, Routing protocol, Data transmission

دانلود مقاله Secure and Efficient Intermediate Node Authentication in Wireless Sensor Networks

International Journal of Signal Processing Systems Vol. 3, No. 1, June 2015

R. C. Choukimath and V. V. Ayyannavar

Abstract—Message authentication is one of the most effective ways to thwart unauthorized and corrupted messages from being forwarded in wireless sensor networks (WSNs). For this reason, many message authentication schemes have been developed, based on either symmetric-key cryptosystems or public-key cryptosystems. Most of them, however, have the limitations of high computational and communication overhead in addition to lack of scalability and resilience to node compromise attacks. To address these issues, a polynomial-based scheme was recently introduced. However, this scheme and its extensions all have the weakness of a built-in threshold determined by the degree of the polynomial, when the number of messages transmitted is larger than this threshold, the adversary can fully recover the polynomial. Thus the aim of the project is to implement a scalable authentication scheme based on elliptic curve cryptography (ECC).While enabling intermediate nodes authentication. The proposed scheme allows any node to transmit an unlimited number of messages without suffering the threshold problem. In addition, the scheme can also provide message source privacy.

Index Terms—WSN, polynomial scheme, ECC

دانلود مقاله A Survey of QoS Based Routing Protocols for Wireless Sensor Networks

J Inf Process Syst, Vol.8, No.4, December 2012

R.Sumathi* and M.G.Srinivas**

Abstract—With the increasing demand for real time applications in the Wireless Senor
Network (WSN), real time critical events anticipate an efficient quality-of-service (QoS)
based routing for data delivery from the network infrastructure. Designing such QoS
based routing protocol to meet the reliability and delay guarantee of critical events while
preserving the energy efficiency is a challenging task. Considerable research has been
focused on developing robust energy efficient QoS based routing protocols. In this paper,
we present the state of the research by summarizing the work on QoS based routing
protocols that has already been published and by highlighting the QoS issues that are
being addressed. The performance comparison of QoS based routing protocols such as
SAR, MMSPEED, MCMP, MCBR, and EQSR has also been analyzed using ns-2 for
various parameters.

Keywords—Wireless Sensor Networks, Quality of Service, Reliability, Energy Efficiency,
End-To-End Delay, Critical Data

دانلود مقاله Amplify-and-Forward Compressed Sensing as an Energy-Efficient Solution in Wireless Sensor Networks- انتشار 2014

IEEE SENSORS JOURNAL, VOL. 14, NO. 5, MAY 2014

Joan Enric Barceló-Lladó, Antoni Morell, and Gonzalo Seco-Granados

Abstract—In this paper, we propose a novel distributed compressed
sensing transmission scheme, which is referred to as
amplify-and-forward compressed sensing (AF-CS), in order to
improve the existing tradeoff among reconstruction error, energy
consumption, and resource utilization. The goal is twofold. First,
to take advantage of the time correlation in order to produce
sparse versions of the signal vector, which collects the transmitted
signals of all the sensors. Second, to benefit from the nature
of the multiple access channel in order to perform random
measurements of the signal vector. Additionally, a simple model
that accurately approximates the distortion introduced by the
proposed scheme is presented. This model is then used to select
the number of active nodes and relays based on a cost function
that controls the tradeoff between reconstruction error and
energy consumption. Simulation results show that the AF-CS
outperforms other techniques in terms of distortion and number
of transmissions, providing simultaneously, energy savings and a
significant reduction in the number of channel uses.

Index Terms—Compressed sensing, decentralized