251. On Capacity and Delay of Multichannel Wireless Networks With Infrastructure Support.
- Author
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Dai, Hong-Ning, Wong, Raymond Chi-Wing, and Wang, Hao
- Subjects
MULTICHANNEL communication ,WIRELESS sensor nodes ,COMPUTER interfaces ,NETWORK performance ,BANDWIDTHS - Abstract
In this paper, we propose a novel multichannel network with infrastructure support, which is called an
MC-IS network, that has not been studied in the literature. To the best of our knowledge, we are the first to study such anMC-IS network. Our proposedMC-IS network has a number of advantages over three existing conventional networks: a single-channel wireless ad hoc network (called anSC-AH network), a multichannel wireless ad hoc network (called anMC-AH network), and a single-channel network with infrastructure support (called anSC-IS network). In particular, thenetwork capacity of our proposedMC-IS network is \sqrtn\log n times higher than that of anSC-AH network and anMC-AH network and the same as that of anSC-IS network, where n is the number of nodes in the network. Theaverage delay of ourMC-IS network is \sqrt{\log n/n} times lower than that of anSC-AH network and anMC-AH network and \min\{C_{I},m\} times lower than the average delay of anSC-IS network, where CI and m denote the number of channels dedicated for infrastructure communications and the number of interfaces mounted at each infrastructure node, respectively. Our analysis on anMC-IS network equipped withomnidirectional antennas has been extended to anMC-IS network equipped withdirectional antennas only, which are named as anMC-IS-DA network. We show that anMC-IS-DA network has an even lower delay of c/(\lfloor \text2\pi/\theta\rfloor\cdot CI) compared with anSC-IS network and ourMC-IS network. For example, when CI=\text{12} and \theta=\pi/\text12, anMC-IS-DA can further reduce the delay by 24 times lower than that of anMC-IS network and by 288 times lower than that of anSC-IS network. [ABSTRACT FROM AUTHOR]- Published
- 2017
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