tailieunhanh - Báo cáo hóa học: "Research Article A Novel Approach to Fair Routing in Wireless Mesh Networks"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article A Novel Approach to Fair Routing in Wireless Mesh Networks | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2009 Article ID 379059 13 pages doi 2009 379059 Research Article A Novel Approach to Fair Routing in Wireless Mesh Networks Juho Maatta and Timo Braysy Centre for Wireless Communications University of Oulu . Box 4500 90014 Oulu Finland Correspondence should be addressed to Juho Maatta jumaatta@ Received 2 June 2008 Accepted 8 December 2008 Recommended by Mohamed Hossam Ahmed Multiradio wireless mesh network WMN is a feasible choice for several applications as routers with multiple network interface cards have become cheaper. Routing in any network has a great impact on the overall network performance thus a routing protocol or algorithm for WMN should be carefully designed taking into account the specific characteristics of the network. In addition in wireless networks serious unfairness can occur between users if the issue is not addressed in the network protocols or algorithms. In this paper we are proposing a novel centralized routing algorithm called Subscriber Aware Fair Routing in WMN SAFARI for multiradio WMN that assures fairness leads to a feasible scheduling and does not collapse the aggregate network throughput with a strict fairness criterion. We show that our protocol is feasible and practical and exhaustive simulations show that the performance is improved compared to traditional routing algorithms. Copyright 2009 J. Maatta and T. Braysy. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. 1. Introduction Wireless mesh network WMN 1 has recently appeared as a promising technology which can increase coverage area and capacity of existing wireless networks. With the help of of-the-shelf wireless mesh routers large previously possibly unreachable areas can have wireless access to for