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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Zhen Jiang Donghong Wu Minyi Guo Jie Wu Kline, R. Xin Wang |
| Copyright Year | 2012 |
| Abstract | In this paper, we will illustrate a practice of pipeline process to maximize the parallelization of all possible interference-free relays in the broadcasting of wireless sensor networks (WSNs), in order to optimize the end-to-end delay performance in both the (synchronous) round-based systems and the (asynchronous) duty cycle systems. Broadcasting is one of the fundamental communications in WSNs. Existing delay-sensitive broadcasting schemes adopt an approximation approach that is based on counting the hop distance to the source. They require all relays in each 1-hop propagation to be synchronized together in order to avoid any interference, but this also incurs the block of the interference free relays from those 1-hop neighbors that have received the message. In the duty cycle system, such a block can cause the relay to miss the wake-up time of the successor node which incurs the extra delay. In our approach, a heuristic information model enumerating all the possible future sequences in terms of delay time is adopted first to achieve the optimal relay selection, initiating the study of global impact of local interference. Then, a lightweight model estimating the hop distance to the edge of network of the unaccomplished relay work is adopted with the well known greedy color scheme to achieve the close-to-optimal relay selection. The analytical and experimental results show the substantial improvement by our pipeline practice, compared with the best results known to date. |
| Starting Page | 490 |
| Ending Page | 499 |
| File Size | 204953 |
| Page Count | 10 |
| File Format | |
| ISBN | 9781467325080 |
| ISSN | 01903918 |
| DOI | 10.1109/ICPP.2012.38 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2012-09-10 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Relays Color Broadcasting Image color analysis Delay Interference Schedules wireless sensor networks (WSNs) delay duty cycle pipeline |
| Content Type | Text |
| Resource Type | Article |
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