INLyD: Inter-Network-Layer Delay as a Low-cost Quality Metric for Multi-hop Routing in Wireless Mobile Networks
The need for authentic and effective portrayal of the spatio-temporally changing quality of wireless links has gained wide attention especially over the last decade. Software-based link quality estimators (LQE) classify links with help of packet reception ratio (PRR), required number of packet transmissions (RNP) and scoring/grading schemes that again utilize PRR, RNP or retransmission based heuristics. On the contrary, this paper makes a case for inter-network-layer delay as a classification metric to boost end-to-end packet delivery in multi-hop communication. In essence our Inter-Network-Layer Delay metric (INLyD) uses a simplistic receiver-side in-band signaling scheme to passively accumulate queuing, retrying, back-off, transmission and propagation delay statistics while generating no additional control packet overhead. Our experiments show that the INLyD metric is not only light-weight (25% less MAC transmissions required per node) but substantially outperforms proactive broadcast based estimation schemes in static and mobile scenarios (1.7 and 1.2 times more end-to-end UDP delivery respectively for the performed experiments).
- INLyD: Inter-Network-Layer Delay as a Low-cost Quality Metric for Multi-hop Routing in Wireless Mobile Networks
R. Afzal, M. Nabi, S. Stuijk, and T. Basten.
In International Symposium on Performance Evaluation of Wireless Ad Hoc, Sensor, and Ubiquitous Networks, PE-WASUN 16 Proceedings, pages 91-100. Valletta, Malta, 13-17 November 2016. ACM Press, New York, NY, USA, 2016. (abstract, pdf, doi).