Search results

Designing an efficient routing protocol that opportunistically forwards data to the destination node through nearby sensor nodes or devices is significantly important for an effective incidence response and disaster recovery framework. Existing sensor routing protocols are mostly not effective in such disaster recovery applications as the networks are affected (destroyed or overused) in disasters such as earthquake, flood, Tsunami and wildfire. These protocols require a large number of message transmissions to reestablish the clusters and communications that is not energy efficient and result in packet loss. This paper introduces ODCR - an energy efficient and reliable opportunistic density clustered-based routing protocol for such emergency sensor applications. We perform simulation to measure the performance of ODCR protocol in terms of network energy consumptions, throughput and packet loss ratio. Simulation results demonstrate that the ODCR protocol is much better than the existing TEEN, LEACH and LORA protocols in term of these performance metrics.

Significance of Knowledge The functional name of the Holy Quran is ‘huda’, the guiding light. It focuses divine light on each and every object separating thereby the right from the wrong' (al‐furqan). As this is accomplished by dint of knowledge (al‐ 'ilm). All these three guiding elements namely huda, furqan and ilm, are lined‐up by Allah, the Lord Providence (Rabb‐ulalamin), for earthly welfare (hasanah) and other‐worldly salvation (falah) of human beings. In Quranic context, knowledge, therefore, carries a great significance.