TAILIEUCHUNG - Báo cáo hóa học: " Research Article Optimal Channel Width Adaptation, Logical Topology Design, and 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 Optimal Channel Width Adaptation, Logical Topology Design, and Routing in Wireless Mesh Networks | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2009 Article ID 940584 12 pages doi 2009 940584 Research Article Optimal Channel Width Adaptation Logical Topology Design and Routing in Wireless Mesh Networks Li Li and Chunyuan Zhang College of Computer Science National University of Defense Technology Changsha Hunan China Correspondence should be addressed to Li Li lilLwz@ Received 23 December 2008 Accepted 16 March 2009 Recommended by Ingrid Moerman Radio frequency spectrum is a finite and scarce resource. How to efficiently use the spectrum resource is one of the fundamental issues for multi-radio multi-channel wireless mesh networks. However past research efforts that attempt to exploit multiple channels always assume channels of fixed predetermined width which prohibits the further effective use of the spectrum resource. In this paper we address how to optimally adapt channel width to more efficiently utilize the spectrum in multi-radio multi-channel mesh networks. We mathematically formulate the channel width adaptation logical topology design and routing as a joint mixed 0-1 integer linear optimization problem and we also propose our heuristic assignment algorithm. Simulation results show that our method can significantly improve spectrum use efficiency and network performance. Copyright 2009 L. Li and C. Zhang. 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 networks WMNs consist of a multihop backbone of mesh routers which collect and relay the traffic generated by mesh clients 1 . A fundamental obstacle to building large-scale multihop wireless networks is the insufficient network capacity when route lengths and network density increase due to the limited spectrum shared in the .

TÀI LIỆU LIÊN QUAN
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.