In response to the received advertisement request, each node transmits its location information to the BS during its allocated timeslot.
Each node receives advertisements during a certain period from the arrival of the first received advertisement, and then chooses a cluster-head with the smallest number of hops from it and advertises its cluster-head to other nodes within its radio range.
The company has marketing tie-ins with sites like iTurf and Guyville, teen-clothing retailer Delia's and Paper Magazine, among others, but says users will always be able to choose whether they want to receive advertisements, which potentially limits advertising revenue.
"And all of a sudden I start receiving advertisements for chocolate.
I didn't become a tweeter until recently but now I am following career profiles such as, UK Fashion Intern, so I always receive advertisements for placements.
The main industry group, the Interactive Advertising Bureau Europe, set up a Web site this summer to let consumers choose not to receive — "opt out" of — receiving advertisements directed as a result of profiling.
The idea is that users of cell phones capable of receiving text messages and Web-enabled data would agree to receive advertisements in exchange for free, or reduced-cost, service.
The Shanghai based company has set up "hotspots" in hotels, shopping malls, and other commercial areas around the city where people can receive advertisements through their mobile device's Bluetooth connection.
Finally, and more recently, our location could also be used by third-party applications to send us contextual information (e.g., receiving advertisements related to the shop we are arriving at [31], or to obtain detailed information about the work of art we stand by at a museum).
