Link-Quality Aware Run-Time Adaptive Forward Error Correction Strategies in Wireless Sensor Networks

نویسندگان

  • P. Hurni
  • T. Braun
  • Philipp Hurni
  • Torsten Braun
چکیده

This paper investigates the potential of Forward Error Correction (FEC) mechanisms and dynamic/run-time adaptive FEC variants in Wireless Sensor Networks. We implemented eight different Error Correction Codes (ECCs), ranging from simple bit-repetition schemes over Hamming codes to complex Bose-Chaudhuri-Hocquenghem codes, and three run-time adaptive FEC schemes which adapt the correctional power of ECCs to the current link quality. The paper evaluates the computational costs and the resulting benefits of the FEC schemes under real-world conditions in a distributed testbed environment. Link-Quality Aware Run-Time Adaptive Forward Error Correction Strategies in Wireless Sensor Networks Abstract. This paper investigates the potential of Forward Error CorThis paper investigates the potential of Forward Error Correction (FEC) mechanisms and dynamic/run-time adaptive FEC variants in Wireless Sensor Networks. We implemented eight different Error Correction Codes (ECCs), ranging from simple bit-repetition schemes over Hamming codes to complex Bose-Chaudhuri-Hocquenghem codes, and three run-time adaptive FEC schemes which adapt the correctional power of ECCs to the current link quality. The paper evaluates the computational costs and the resulting benefits of the FEC schemes under real-world conditions in a distributed testbed environment.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Traffic-Adaptive and Link-Quality-Aware Communication in Wireless Sensor Networks

This paper is a summary of the main contributions of the PhD thesis published in [1]. The main research contributions of the thesis are driven by the research question how to design simple, yet efficient and robust run-time adaptive resource allocation schemes within the communication stack of Wireless Sensor Network (WSN) nodes. The thesis addresses several problem domains with contributions o...

متن کامل

Channel Aware Cooperative FEC/ARQ Mechanism Based on Kalman Filter Prediction for Wireless Sensor Networks

The QoS-Guarantee of data delivery over wireless link is a big challenge due to the unreliable and dynamic characteristics of wireless sensor networks. In this paper, a cooperative forward error correction (FEC)/automatic repeat request (ARQ) mechanism was proposed, in the hope that the data packets could be received on receiver node with high quality. The mechanism, based on Kalman filter, pre...

متن کامل

An Adaptive Congestion Alleviating Protocol for Healthcare Applications in Wireless Body Sensor Networks: Learning Automata Approach

Wireless Body Sensor Networks (WBSNs) involve a convergence of biosensors, wireless communication and networks technologies. WBSN enables real-time healthcare services to users. Wireless sensors can be used to monitor patients’ physical conditions and transfer real time vital signs to the emergency center or individual doctors. Wireless networks are subject to more packet loss and congestion. T...

متن کامل

Enhancing Lifetime of Wireless Sensor Network Using Energy Balanced Routing Algorithm

Wireless Sensor Networks has been an active research area over past few years. The diversity in the applications used in wireless sensor networks represents its great success. There are different characteristics of the topologies used in routing method. Energy and communication ability is important during designing of a routing protocol for wireless sensor networks so that sensing data can be t...

متن کامل

Error resilient image transport in wireless sensor networks

In this paper, we propose an ‘‘in-network’’ diversity combining scheme for image transport over wireless sensor networks. We consider a wireless sensor network with both wireless link impairments and node failures. We analyze two performance metrics of the proposed image transport scheme: energy consumption and received image quality distortion. Our analysis models key aspects of the network in...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2011