Fair bandwidth allocation in wireless mesh networks with cognitive radios

Abstract:

Wireless mesh networks (WMNs) are considered to be an economical solution for last-mile broadband Internet access. In this paper, we study end-to-end bandwidth allocation in WMNs with cognitive radios, which involves routing, scheduling, and spectrum allocation. To achieve a good tradeoff between fairness and throughput, we define two fair bandwidth-allocation problems based on a simple maxmin fairness model and the well-known lexicographical maxmin (LMM) fairness model, respectively. We present linear programming (LP)-based optimal and heuristic algorithms to solve both problems. Extensive simulation results are presented to justify the effectiveness of the proposed algorithms. © 2006 IEEE.

Año de publicación:

2010

Keywords:

• Spectrum allocation
• Cognitive radios
• Crosslayer optimization
• Routing, scheduling
• Bandwidth allocation
• fairness
• Lexicographical maxmin (LMM) Fairness
• Wireless mesh networks (WMNs)

Fuente:

scopus