Impact of multipath fading in wireless ad hoc networks

This paper examines several MANET behaviors and suggests root causes using a stochastic model of received power. It focuses specifically on MANET mechanisms most impacted by fine-grain variations in signal strength. Specifically, it examines 1) the impact of MAC retries on performance, 2) a possible cause of excessive route persistence, 3) route stability in MANETs, and 4) difficulties in estimating the mean SNIR in a MANET. It does so through mathematical analysis, simulation and comparisons to published field results. Categories and Subject Descriptors C.4 [Computer Systems Organization]: Performance Of Systems; J.7 [Computer Applications]: Computers In Other Systems General Terms Performance, Theory Keywords MANET routing protocols, Wireless propagation, Multipath fading, Stochastic models, Modeling fidelity, Rayleigh fading, AODV, DSR, SNIR, Cross-layer issues

• Type: Conference
• Year: 2005
• Where: pewasun
• Authors: John Mullen, Hong Huang
• Keywords: MANET, MANET Behaviors, PEWASUN 2005, Stochastic Models, Wireless Networks