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Mobile users and wireless devices are now the sources of a large volume of data. In such data-intensive mobile and wireless computing systems, delay-tolerant network (DTN) routing plays a critical role in data routing, dissemination, and collection. In this paper, we first introduce a new routing problem in DTNs - data-intensive routing - where data transmitted from one node to another is very large with respect to the size of data which can be transmitted in a single contact and available buffer size at relay nodes. In the proposed opportunistic path model, the contact frequency, contact duration, and buffer constraint are all integrated into a single routing metric. Then, we design the data-intensive routing (DIR) protocol where the path with the highest bottleneck link capacity is defined as the path weight. In addition, we propose the advanced DIR (A-DIR) protocol which focuses on the probability that the last message block will be delivered to its destination within the time constraint. Both the DIR and A-DIR protocols forward messages to better relays or to their destinations based on a greedy strategy with the proposed path metric. Simulations using real mobility traces demonstrate that the proposed DIR and A-DIR protocols achieve their design goals.
|Title of host publication||INFOCOM 2019 - IEEE Conference on Computer Communications|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Number of pages||9|
|State||Published - Apr 2019|
|Event||2019 IEEE Conference on Computer Communications, INFOCOM 2019 - Paris, France|
Duration: 29 Apr 2019 → 2 May 2019
|Name||Proceedings - IEEE INFOCOM|
|Conference||2019 IEEE Conference on Computer Communications, INFOCOM 2019|
|Period||29/04/19 → 2/05/19|
- data-intensive protocols
- Delay tolerant networks
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- 1 Finished
1/08/18 → 31/07/19