Estimation of Network Lifetime Considering Ageing Effect on Battery Capacity of Mobile Devices in Wireless Ad-Hoc Network

Abstract

Energy of nodes in ad-hoc network is one of the critical issue. In literature we have studied various techniques and protocols which focus on energy optimization schemes. These schemes taking into consideration remaining battery power (RBP), but how RBP affected with various environmental factors is not considered. In mobile devices power estimation accuracy is greatly affected by battery ageing which limits its performance and occur all through the life of a device whether it is used or not, which is a chief limitation on actual usage. Moreover, degradations take place in every situation, but with different extent as external conditions and usage interact to aggravate degradations. While designing the energy efficient routing protocols battery aging was not taken into account for estimating RBP. Accurate information regarding battery ageing would be valuable for mobile devices in critical circumstances. To ensure accurate battery measurement and modeling, the influence of the aging effect must also be considered. Existing papers have not considered the impact of ageing while estimating the network lifetime. This paper focus on ageing along with the existing metrics while selecting a route and network lifetime of a node. In this paper the impact of different operating conditions during charging and discharging, high temperature and storage time is analyzed on the aging behavior and we observed that an aged battery will have to be recharged more frequently than when the battery was fresh. This will lead to even more wear-out and the remaining run-times will on the contrary be unacceptably short.