Research Area:  Wireless Sensor Networks
Various broadcasting schemes have been proposed for a unified routing approach in Wireless Adhoc Networks. In their efforts, the researchers mostly aim to minimize the routing-overheads including overfilling of query, routing delay and energy-drain. The routing overheads are minimized using either repeated broadcast or canceling the query-broadcast. On one hand broadcast cancellation methods work based on query-chasing, which creates an extra routing-overhead. On the other hand routing cache based query-broadcast techniques are not adaptive with mobility of target nodes giving rise to unreachability problem. Both types of approaches pose the increased energy-drain and ultimately slow down the route-discovery . These limitations in particular, have motivated us to propose a dynamic request-zone approach for query-broadcasting based on routing-cache. In order to counter the destination unreachability problem, a combined weight metric is used, which is defined as a multi-criteria decision making problem. Later defined problem is solved to compute the weights using extended fuzzy best-worst method. Furthermore the performance of proposed approach is evaluated in terms of query-diffusion, route-latency, and energy-saving.
Author(s) Name:  Naeem Ahmad & Md. Gulzarul Hasan
Journal name:  Wireless Networks
Publisher name:  Springer
Volume Information:  volume 27, pages 765–780 (2021)
Paper Link:   https://link.springer.com/article/10.1007/s11276-020-02477-y