Habitat Monitoring: EXample on Great duck island A 15-minute human visit leads to 20% Patch offspring mortality Network Transit Network Basestation 多
Habitat Monitoring: Example on Great Duck Island 2021-1-29 16 Patch Network Transit Network Basestation Gateway A 15-minute human visit leads to 20% offspring mortality
Wireless and Mobile computing Driven by technology and vision wireless communication technology global infrastructure k device miniaturization mobile computing platforms w The field is moving fast 2021-129
Wireless and Mobile Computing ß Driven by technology and vision Þ wireless communication technology Þ global infrastructure Þ device miniaturization Þ mobile computing platforms ß The field is moving fast 2021-1-29 17
Challenge 1: Unreliable and Unpredictable Wireless Coverage Wireless links are not reliable: they may vary over time and space Reception Vs Distance Asymmetry VS Power Will Rogers Outdoor Habitat-Mica 2 m:”.", 轴 door Office mical 8-E5 5050 *Cerpa, busek et. al 2021-129 What Robert Poor(Ember calls The good, the bad and the ugly
Challenge 1: Unreliable and Unpredictable Wireless Coverage ß Wireless links are not reliable: they may vary over time and space 2021-1-29 18 Reception vs. Distance Asymmetry vs. Power *Cerpa, Busek et. al What Robert Poor (Ember) calls “The good, the bad and the ugly
Challenge 2: Open Wireless Medium Wireless interference S1 R1 S2 R1 Hidden terminals and S1 R1+R2 Exposed terminal R1 S1 S2 R2 Wireless security eavesdropping, denial of service, 2021-129 19
Challenge 2: Open Wireless Medium ß Wireless interference ß Hidden terminals and ß Exposed terminal ß Wireless security Þ eavesdropping, denial of service, … 2021-1-29 19 S1 S2 R1 R1 S1 R1 R2 R1 S1 S2 R2
Challenge 3: Mobility Mobility causes poor-quality wireless links Mobility causes intermittent connection under intermittent connected networks traditional routing, TCP, applications all break Mobility changes context, e.g., location 2021-129 20
Challenge 3: Mobility ß Mobility causes poor-quality wireless links ß Mobility causes intermittent connection Þ under intermittent connected networks, traditional routing, TCP, applications all break ß Mobility changes context, e.g., location 2021-1-29 20