Wireless networks are characterized by the broadcast nature
of the
wireless
channel, strong path loss, time varying fading and
shadowing, and limited
battery and processing power of the devices. These
properties of the
wireless physical layer interact in a complex manner with
the higher
layers
of the protocol stack (MAC and routing), and present
several interesting
challenges when analyzing, dimensioning and designing
wireless networks.
The focus of this presentation is on discussing these
*cross-layer*
interactions, and the design of schemes which take
advantage of these
interactions.
We will draw examples from different scenarios including
wireless sensor
networks, ad hoc networks and cellular networks.
Joint work with Vivek Mhatre, Sunil Kulkarni, and Aravind
Iyer.