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Sổ tay của các mạng không dây và điện toán di động P16

Wireless multihop networks, also known as packet radio networks and ad hoc networks, hold great promise for providing easy to use mobile services for many applications, especially military and disaster relief communications. Such networks can provide robust communication, be rapidly deployed, and respond quickly in dynamic environments. However, effectively deploying and utilizing such networks poses many technical challenges. One such challenge is to make effective use of the limited channel bandwidth | 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 16 Broadcast Scheduling for TDMA in Wireless Multihop Networks ERROL L. LLOYD Department of Computer Science and Information Sciences University of Delaware 16.1 IRTRODUCTION Wireless multihop networks also known as packet radio networks and ad hoc networks hddgreat promise for providing easy to use mobile services for many applications especially militaryimddisaster t aliei connmmica tiom . Such neiwotCt lan arovide robust communication be rapidly deployed and respond quickly in dynamic environments. However effectively deploying and utilizing such networks poses many technical challenges. One such challenge is to make effective use of the limited channel bandwidth. In this chapter we describe one approach to this challenge namely broadcast scheduling of channel usaheby way ofTDMA time division multiple access . Our emphasis is on the fundamental computational and algorithmic issues and results associated with broadcast scheduling. Thechapter is organized aslollows. In thegextseitionwi provide backgronndindter-minology sth broadcast hilicalulinc and related topiei. Section IWI exammep Pte aomprita-tievai comd-exity of bnondcarl rciiCbO.iling. Sections 16.4 and 16.5 abidy ajnpcodimativn al-goritdmu ip cnntralieadand dltOTicled sloniaini. Oection CP.6bridOb ontlinth tome rciOcxlresulti.l inaliyiSecOlonI6.7soidPdn lzestie iPiaptervndauthnespromlaenl open erobtemc. i6.C WHAT IS BROADCAST SCHEDULING gat Pgrorind xud 1a nmniogyassonia1ed wia wirniets nmhihopec tw sOri.the modc iing oPsurhne pdorks ppOt h tici nc l Cr soa scovsdedmthtsaection. t6t2.1 Bas.c Concefrtsof relc ggnUu i hop NeCworks We define a wireless multihop network as a network of stations that communicate with each other via wireless links using radio signals. All of the stations share a common .