Multirate Geographic Opportunistic Routing Protocol Design
Kai Zeng, Wenjing Lou, Ming Li · 2011
This chapter describes Multirate Geographic Opportunistic Routing (MGOR), and the factors that affect its performance, which includes multirate capability, candidate selection, prioritization, and coordination. Based on the analysis, the chapter proposes the local metric, the Opportunistic Effective One-hop Throughput (OEOT), to characterize the tradeoff between packet advancement and medium time cost under different data rates. It presents a multirate link-quality measurement mechanism to provide the link packet reception ratio information for the network layer to assist routing decision. The author compares the performance of MGOR with single-rate Geographic Opportunistic Routing (GOR), single-rate Geographic Routing (GR) and multirate GR. Simulation results shows that the MGOR incorporating the rate adaptation and candidate selection algorithm achieves the highest throughput and lowest delay among all the protocols. Controlled Vocabulary Terms network routing; routing protocols; throughput; wireless networks