Intertwined medium access scheduling of upstream and downstream traffic in wireless sensor networks

Bagaa, Miloud; Younis, Mohamed; Djenouri, Djamel; Badache, Nadjib

Abstract

© 2014 IEEE. In wireless sensor networks, the sensor data are often aggregated en-route to the base-station in order to eliminate redundancy and conserve the network resources. The basestation not only acts as a destination for the upstream data traffic, but it also configures the network by transmitting commands downstream to nodes. The data delivery latency is a critical performance metric in time-sensitive applications and is considered by a number of data aggregation schemes in the literature. However, to the best of our knowledge, no solution has considered the scheduling of downstream packets, originated from the base-station, in conjunction with upstream data aggregation traffic. This paper fills such a gap and proposes MASAUD, which intertwines the medium access schedule of upstream and downstream traffic in order to reuse time slots in a non-conflicting manner and reduce delay. MASAUD can be integrated with any scheme for data aggregation scheduling. The simulation confirms the effectiveness of MASAUD.

• Presentation Conference Type: Conference Paper (published)
• Conference Name: IEEE Wireless Communications and Networking Conference (WCNC)
• Start Date: Apr 6, 2014
• End Date: Apr 9, 2014
• Acceptance Date: Jan 3, 2014
• Publication Date: 2014-04
• Deposit Date: Mar 10, 2020
• Pages: 2468-2473
• Series ISSN: 1525-3511
• ISBN: 9781479930838
• DOI: https://doi.org/10.1109/WCNC.2014.6952776
• Public URL: https://uwe-repository.worktribe.com/output/5638994