دانلود مقاله ترجمه شده حفظ استواری مسیر با شکست گره در موبایل شبکه های
ad hoc
The basic multi-path route discovery protocol we describe in this section was originally presented by Yang et al. [5]. The protocol presented by Yang et al. is called the Greedy-based Backup Routing Protocol (GBR). First a path is discovered from the source node S to the destination D using GPSR as described above. The path discovered is termed the primary path. We also need to determine the backup paths that provide link protection for the links of the primary path. Since these backup paths have to survive after the link expires we need to know the lifetimes of both individual links and paths as a whole. Following [5], we denote these lifetimes, respectively, as Link Expiration Time LET(vi,vi+1) for the link vivi+1, and Path Expiration Time PET(P) for a path P. LET(vi−۱, vi) is defined as
