Abstract
Distributed storage plays a very important role in Wireless Sensor Networks (WSNs), especially in catastrophic scenarios. To improve the energy efficiency of distributed storage, this paper proposes a Compressed Network Coding based Distributed Storage (CNCDS) scheme. Exploiting the correlation of sensor readings and utilizing the Compressed Sensing (CS) theory and network coding technology, the proposed CNCDS scheme achieves good energy efficiency by reducing the number of transmissions and receptions. Theoretical analysis proves that, the measurement matrix of CNCDS scheme guarantees good CS recovery performance. Simulation results show that, compared with the conventional ICStorage scheme, the proposed CNCDS scheme reduces the number of transmissions, the number of receptions and the CS recovery mean squared error (MSE) by up to 55%, 74% and 76% respectively. In contrast to the conventional NICStorage scheme, the proposed CNCDS scheme can simultaneously reduce the number of transmissions, receptions and recovery MSE.
Original language | English |
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Title of host publication | 2012 International Symposium on Communications and Information Technologies, ISCIT 2012 |
Place of Publication | Piscataway, NJ |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Pages | 816-821 |
Number of pages | 6 |
ISBN (Print) | 9781467311571 |
DOIs | |
Publication status | Published - 2012 |
Event | 2012 International Symposium on Communications and Information Technologies, ISCIT 2012 - Gold Coast, QLD, Australia Duration: 2 Oct 2012 → 5 Oct 2012 |
Other
Other | 2012 International Symposium on Communications and Information Technologies, ISCIT 2012 |
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Country/Territory | Australia |
City | Gold Coast, QLD |
Period | 2/10/12 → 5/10/12 |