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Recently, multichannel protocols have been proposed and shown to significantly improve the aggregate throughput compared to single channel protocols. However, some existing proposals still suffer from low channel utilization or unfair bandwidth allocation between different flows in a multihop wireless network. In this paper, we design an asynchronous multichannel MAC called the cooperative multichannel...
The use of multi-channels at the MAC layer is perceived to improve the capacity of wireless networks. However, there is a need for coordination and good scheduling algorithms in using the multi-channels without degrading the performance of the network. In this work, we seek to improve the performance of the multi-channel systems further by reducing the signaling overhead of the control channel. The...
Wireless sensor networks typically require low cost devices and low power operations. Hence, such networks usually employ radios with only simple modulation techniques such as ASK, OOK and FSK. We propose a new energy efficient communication scheme for wireless sensor networks that is based on the ternary number system encoding of data. An efficient algorithm for conversion from binary to ternary...
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...
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