Information Technology Reference
In-Depth Information
(h)
(i)
(j)
F
IG
. 41. Continued.
9.
Conclusion and Future Research Directions
Broadcasting has been proposed as a viable solution to allow anytime, anywhere
access to the public data. Within the constraints of mobile devices and wireless com-
munication, this chapter was aimed to address the application and effectiveness of
data broadcasting from two viewpoints: energy and response time. Indexing schemes
are essential to exploit different operational modes of mobile devices in order to con-
serve energy at the expense of additional overheads. Broadcasting over the parallel
air channels is essential to reduce the broadcast length and hence, to reduce the ac-
cess latency. Our results showed that the use of parallel air channels not only is
successful in reducing the access latencies, as compared to a single air channel, but
also decreases the power consumption of the mobile device, significantly. Moreover,
