Analysis of Ber-Based on-Demand and Link State Routing Protocols under Realistic Conditions
Résumé
Wireless networks are known to offer lower performance compared to wired ones. These networks are lossy due to obstacles in the wave propagation field, frequent topology change and interference due to simultaneous transmissions. To address these limits, many improvements of basic protocols are proposed. However, few studies focus on a detailed analysis and performance comparison of QoS protocols. In this paper, we first highlight the impact of wave propagation model on the performance of wireless network routing protocols. Second we detail the behavior of Bit Error Rate (BER)-based approaches on link-state and on-demand routing protocols. A fine-analysis allows us to understand the performance of Optimized Link State Routing protocol (OLSR) and Zone Routing Protocol (ZRP) compared to Ad hoc On-Demand Distance Vector Protocol (AODV) in urban environment. In this study, we highlight the need to reconsider the node vicinity when filling routing tables in QoS-based link-state protocols. We also point out benefits and limits of blacklisting approach often proposed for reactive protocols enhancement.