کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
447111 693393 2007 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A hybrid meshed multipath forwarding scheme in wireless ad hoc networks
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
A hybrid meshed multipath forwarding scheme in wireless ad hoc networks
چکیده انگلیسی

Flexibility and robustness are the two key features of multipath routing in multihop wireless networks. While robustness to node failures and link errors is important to achieve high end-to-end throughput, it is also important to judiciously use the routing flexibility to achieve a better traffic load distribution among the network nodes, so that the network lifetime can be extended.In this paper, we study point-to-point multipath forwarding strategies in relatively static but highly error-prone wireless sensor networks. We investigate a multipath forwarding scheme, called selective random forwarding (SRF), and compare its end-to-end throughput and traffic load distribution with respect to selective preferential forwarding (SPF) (or forwarding along primary/secondary routes). We first show that in node disjoint multipath routes SRF has a better overall performance. When considering meshed multipath routes [14], SRF offers a much better load balancing performance but a poorer throughput. Aiming at achieving a good performance trade-off in meshed multipath routes, we introduce a new hybrid packet forwarding scheme that takes the advantages of higher end-to-end throughput in SPF and more uniform load distribution in SRF. Our network performance studies show that while the hybrid approach always offers the throughput performance nearly as good as SPF, its improved load distribution performance becomes more significant with more inhomogeneous network activity. Our approach is guided by analytic intuition and verified by simulations.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Communications - Volume 30, Issue 17, 30 November 2007, Pages 3346–3357
نویسندگان
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