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Multi-channel MAC protocols in wireless ad hoc and sensor networks allow a number of nodes in the same neighborhood to transmit in parallel on distinct channels without interfering with one another. The parallelism increases the throughput and can potentially reduce the delay. Free collision during the data transmission avoids the energy for packet retransmissions. Firstly, we described five important...
While sensor networks have become an evolving technology that has a wide range of potential applications in ubiquitous computing. In ubiquitous learning environment, education is happening all around the learner but the learner may not even be conscious of the learning process. Wireless sensor networks play an important role in collecting learner's contextual information in ubiquitous learning. Firstly,...
Context aware ubiquitous learning is pervasive and persistent, allowing learners to access education calmly, flexibly and seamlessly. The objective of context aware ubiquitous learning is to move e- learning and mobile learning a step further from learning at anytime anywhere to be at the right time and right place with right learning resources and right learning peers. In recent years, wireless sensor...
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