TAILIEUCHUNG - Sổ tay của các mạng không dây và điện toán di động P5

Due to rapid growth in the use of wireless communication services and the corresponding scarcity and high cost of radio spectrum bandwidth, it has become increasingly important for cellular network operators to maximize spectrum efficiency. Such efficiency can be achieved by optimal frequency reuse, ., the simultaneous use of the same part of the radio spectrum by communication links in different locations of the network. | Handbook of Wireless Networks and Mobile Computing Edited by Ivan Stojmenovic Copyright 2002 John Wiley Sons Inc. ISBNs 0-471-41902-8 Paper 0-471-22456-1 Electronic CHAPTER 5 Channel Assignment and Graph Labeling JEANNETTE C. M. JANSSEN Department of Mathematics and Statistics Dalhousie University Halifax NS Canada INTRODUCTION Due to rapid growth in the use of wireless communication services and the corresponding scincityandhigh c ostol radio spectrum bandwidth it has become increasingly important efficiency. Such efriciency can be achieved by optimal frequency reuse . the simultaneous use of the same part of the radio spectrum by communication links in different locations of the network. Optimal frequency reuse is constrained by noise levels resulting from interference between communication links that must be kept at acceptable levels see 25 . In the previous chapter 28 the problem of assigning channels to minimize spectrum use while satisfying interference constraints was discussed in its simplest form. In this of cells inthenetworkcantither nsethtsame channel not. llovvcpcr. foe netwocPs boned ee iiiccsi nc t ThCb er ortimedit inion TDMAf r ton bo oslgnitichntiliflerenceinthe amount ol delei ferc nce between cOcnnelp ehatore near eacliotirehin the radio sphclrnmandchenceinthat ocr ter cn act. Pit snciciiheeceattbehdatH i Tntwnnn snCPi inlltlise chtmneltelosetogwthnh infrepciency muslbe oeancer ctan O e atanCwennc tas iinaurthOi ii c tantceo iarnpnrpe he aonstraintafoi charmei trom tnin consideration are referred to as chann inepaeat c nconsCraints. Aw diccncsed mpSL o ornnhnt aai csnbw lined loethachannei essignment proWem. The nonnoofshtgcnpn coecesnnnW tocellsortheirOeon htationoandlheehgesl epreaett ntH adjtwency. Wt ansuwt knc e fixed demand Cnc ahpietinlt is given for etch cell pud tltn a cOannel ansignrncm s lgnin comely tic at

TỪ KHÓA 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.