Towards Interference-Aware Routing for Real-time Traffic in Multi-hop Wireless Networks

• Published in: Proceedings of the 11th IEEE International Symposium on Distributed Simulation and Real-Time Applications pp. 80 - 83
• Main Authors: Kolar, Vinay, Abu-Ghazaleh, Nael B.
• Format: Conference Proceeding
• Language: English
• Published: Washington, DC, USA IEEE Computer Society 22-10-2007
• Series: ACM Conferences
• Subjects: Computer systems organization > Dependable and fault-tolerant systems and networks; Computer systems organization > Embedded and cyber-physical systems; Computer systems organization > Real-time systems; General and reference > Cross-computing tools and techniques > Performance; Networks > Network performance evaluation; Networks > Network protocols > Network layer protocols > Routing protocols; Networks > Network types > Mobile networks; Networks > Network types > Wireless access networks
• ISBN: 0769530117; 9780769530116
• DOI: 10.1109/DS-RT.2007.44

We formulate the real-time routing problem in static multi-hop wireless networks as an optimization problem, whose solution is the optimal routes relative to an end-to-end delay based objective. The problem is formulated as a mixed integer linear program. The variance of the delay with respect to the aggregate interference measures is empirically studied and a linear approximation is proposed. We show that this formulation yields routes that significantly outperform the best routes obtained by OLSR. Finally, we discuss the applications of such a model both in terms of capacity analysis, on-line algorithms for static scenarios, and extensions to allow the development of distributed protocols that solve the optimization problem.