scholarly journals Decision Fusion Under Fading Channel in Resource-Constrained Wireless Sensor Networks

2007 ◽  
Vol 18 (5) ◽  
pp. 1130 ◽  
Author(s):  
Yan-Jun LI
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Fading Channel ◽  
Decision Fusion ◽  
Wireless Sensor ◽  
Resource Constrained

Performance Analysis of OQPSK Signals with Bi-Kappa Noise for Wireless Sensor Networks

2013 ◽  
Vol 330 ◽  
pp. 957-960
Author(s):  
Qiao Ling Du ◽  
Zhi Rui Wang ◽  
Yu Pei ◽  
Yi Ding Wang
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Performance Analysis ◽  
Error Rate ◽  
Fading Channel ◽  
Rayleigh Fading ◽  
Symbol Error Rate ◽  
Wireless Sensor ◽  
Channel Simulation ◽  
Simulation Results

This paper investigates the performance analysis of OQPSK in HF band for wireless sensor networks. An analytical model for getting symbol error rate (SER) is given in presence of Bi-Kappa noise in HF band. And the SER of OQPSK is given in AWGN and Rayleigh fading channel. Simulation results HF noise as Bi-Kappa noise should be investigated in HF band for WSN.

Design and Implementation of a Firmware Update Protocol for Resource Constrained Wireless Sensor Networks

2011 ◽  
Vol 2 (3) ◽  
pp. 50-68 ◽  
Author(s):  
Teemu Laukkarinen ◽  
Lasse Määttä ◽  
Jukka Suhonen ◽  
Timo D. Hämäläinen ◽  
Marko Hännikäinen
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Wireless Sensor ◽  
External Memory ◽  
Transport Protocol ◽  
Resource Constrained ◽  
Design And Implementation ◽  
Data Memory ◽  
Program Memory

Resource constrained Wireless Sensor Networks (WSNs) require an automated firmware updating protocol for adding new features or error fixes. Reprogramming nodes manually is often impractical or even impossible. Current update protocols require a large external memory or external WSN transport protocol. This paper presents the design, implementation, and experiments of a Program Image Dissemination Protocol (PIDP) for autonomous WSNs. It is reliable, lightweight and it supports multi-hopping. PIDP does not require external memory, is independent of the WSN implementation, transfers firmware, and reprograms the whole program image. It was implemented on a node platform with an 8-bit microcontroller and a 2.4 GHz radio. Implementation requires 22 bytes of data memory and less than 7 kilobytes of program memory. PIDP updates 178 nodes within 5 hours. One update consumes under 1‰ of the energy of two AA batteries.

Applied Technology for Typical Attacks and Security Mechanisms in Wireless Sensor Networks

2014 ◽  
Vol 977 ◽  
pp. 484-490
Author(s):  
Run Zeng
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Sensor Nodes ◽  
Security Requirements ◽  
Wireless Sensor ◽  
Sensitive Information ◽  
Resource Constrained ◽  
Advantages And Disadvantages ◽  
Applied Technology ◽  
The Way

Wireless Sensor Networks (WSNs) are used in many applications in military and commercial areas. These applications often include the monitoring of sensitive information such as enemy movement on the battlefield or the location of personnel in a building. However, due to the highly resource constrained in sensor nodes, traditional security strategies always can do few with attacks on WSNs. In this Paper, we proposes a study of attacks and security mechanisms in WSNs. First, we summarize the attacks to WSNs and the security requirements based on the TCP\IP networking model, then we present the security solutions to each attack. Along the way we highlight the advantages and disadvantages of various WSN solutions and further compare and evaluate these solutions.

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