Open Access Open Access  Restricted Access Subscription or Fee Access

Lifetime Optimization Model for Network Coding Technology in Wireless Sensor Networks

Zhang Wei-sheng


In energy constrained wireless networks, it’s always required to extend the network lifetime. For network lifetime optimization problem, three circumstances under random topology environments are considered simultaneously, which is no network coding, two-way network coding, and overhearing network coding, respectively. Combining with power control model, number of flows, traffic demand distribution, and initial energy of each node, the network lifetime is evaluated and optimized via interior-point method. Simulation results under different network conditions demonstrate that network coding can improve lifetime gain in case of weak power control, while both this gain and computation overhead magnify with the increase of the number of flows, and both traffic demand distribution and initial energy have little impact on the lifetime. In addition, the results also show that the performance of two-way network coding is similar with that of overhearing network coding, while having lower computation overhead.


Wireless Multi-hop Networks, Network Coding, Computation Overhead, Two-way Network Coding

Full Text:


Disclaimer/Regarding indexing issue:

We have provided the online access of all issues and papers to the indexing agencies (as given on journal web site). It’s depend on indexing agencies when, how and what manner they can index or not. Hence, we like to inform that on the basis of earlier indexing, we can’t predict the today or future indexing policy of third party (i.e. indexing agencies) as they have right to discontinue any journal at any time without prior information to the journal. So, please neither sends any question nor expects any answer from us on the behalf of third party i.e. indexing agencies.Hence, we will not issue any certificate or letter for indexing issue. Our role is just to provide the online access to them. So we do properly this and one can visit indexing agencies website to get the authentic information. Also: DOI is paid service which provided by a third party. We never mentioned that we go for this for our any journal. However, journal have no objection if author go directly for this paid DOI service.