Parallel Transmission strategy for Channel Sensing Mechanism in
Cognitive Radio Networks
Abstract
Cognitive Radios are the best available options for the
increasing number of devices and users who need to access the limited
physical spectrum for wireless network communications. They use the
spectrum efficiently and allow the secondary users to be accommodated to
use the network spectrum when the primary users are not actively
transmitting. However, sensing the channel for primary users and their
active transmissions is a challenge because there are numerous
parameters in the transmission that are uncertain. The paper addresses
this problem of channel sensing by proposing a parallel transmission and
hence power control scheme has been developed for the transmission to
analyze the power management and QoS parameters. The design has been
simulated using the Qualnet simulation tool.