Introduction - If you have any usage issues, please Google them yourself
In this dissertation, there are four main aspects included: energy reservation on
MAC layer, secure improvement for DoS attacks on MAC layer, query processing with
uncertainty for sensor systems, and throughput maximization on MAC layer
for ultra wideband communication systems.
In energy reservation, we proposed asynchronous MAC (A-MAC) protocol and
asynchronous schedule-based MAC (ASMAC) protocol. A-MAC and ASMAC proto-
cols are attractive due to their suitabilities for multihop networks and capabilities of
removing accumulative clock-drifts without any network synchronization. Moreover, we
build a traffic-strength- and network-density-based model to adjust essential algorithm
parameters adaptively