CS8803D Course Reading Summaries

Paper #: 5.2.16
Title: Effects of power conservation wireless coverage and cooperation on data 
dissemination among mobile devices



Idea:

This paper introduces a peer-to-peer network for mobile devices called 7DS.
The objective of the scheme is to disseminate information at a low cost in terms 
of power consumption.  The system uses http, and xml for communication, and a 
request, broadcast, and advertise scheme to as the peer-to-peer scheme.  

Power is conserved in 7DS by using a threshold bellow which devices stop 
participating fully in the network.  Different operating modes where described, 
and studied in the paper.  Operating modes are different combinations on data 
sharing functionality, query forwarding, and power conserving behaviors.


Strength:
The prototype system was written in Java.  The system was evaluated using an 
extensive simulation of both the 7DS peer-to-peer system, and a traditional base 
station system. 7DS has been shown to reduce power consumption by 3 to 70 
percent verses conventional base station based information dissemination 
schemes.


Weakness:
One downside to this paper was the overuse of acronyms.  There are a large 
number of acronyms made up, and used in the paper.  This makes it hard to follow 
the research being presented.