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Power‐conserving centralized organization of ad hoc wireless networks
Author(s) -
Shah Mehul,
Flikkema Paul G.
Publication year - 1999
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/(sici)1099-1131(199909/12)12:5/6<439::aid-dac421>3.0.co;2-m
Subject(s) - computer science , computer network , wireless ad hoc network , telecommunications link , quality of service , wireless network , power control , focus (optics) , distributed computing , physical layer , wireless , selection algorithm , selection (genetic algorithm) , power (physics) , telecommunications , artificial intelligence , physics , quantum mechanics , optics
This paper presents a physical layer‐based framework for the organization of ad hoc wireless networks. The focus is quasi‐static environments, such as multimedia classrooms, and situations characterized by real‐time services and high traffic loads. In these cases, centralized control and a star‐connected topology may be preferable due to its simplicity and high efficiency. Using a link loss matrix, an approach is developed for selection of a network leader that takes into consideration link losses and transmitter powers. Both minimax and minisum criteria are established, and a number of conditions are established for determining uplink, downlink, Bayesian and universal leaders. A QoS‐based iterative algorithm for determination of link transmit powers is also proposed, a special case of which provides the link loss matrix for leader selection. The algorithm also provides the information required to determine a set of candidate leaders, whose members can assume leadership without interruption or degradation of network operation. Copyright © 1999 John Wiley & Sons, Ltd.