Power-conserving centralized organization of ad hoc wireless networks

✍ Scribed by Mehul Shah; Paul G. Flikkema

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 157 KB
• Volume: 12
• Category: Article
• ISSN: 1074-5351
• DOI: 10.1002/(sici)1099-1131(199909/12)12:5/6<439::aid-dac421>3.0.co;2-m

✦ Synopsis

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 tra$c loads. In these cases, centralized control and a star-connected topology may be preferable due to its simplicity and high e$ciency. 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.