TY - JOUR
T1 - On Capacity and Delay of Multichannel Wireless Networks with Infrastructure Support
AU - Dai, Hong-Ning
AU - Wong, Raymond Chi-Wing
AU - Wang, Hao
N1 - The work described in this paper was supported in part by the Macao Science and Technology Development Fund under Grant No. 096/2013/A3. The review of this paper was coordinated by Dr. F. Bai.
Publisher Copyright:
© 2016 IEEE.
PY - 2017/2
Y1 - 2017/2
N2 - 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 an MC-IS network. Our proposed MC-IS network has a number of advantages over three existing conventional networks: a single-channel wireless ad hoc network (called an SC-AH network), a multichannel wireless ad hoc network (called an MC-AH network), and a single-channel network with infrastructure support (called an SC-IS network). In particular, the network capacity of our proposed MC-IS network is √{n log n} times higher than that of an SC-AH network and an MC-AH network and the same as that of an SC-IS network, where $n$ is the number of nodes in the network. The average delay of our MC-IS network is √{log n/n} times lower than that of an SC-AH network and an MC-AH network and min{CI},m} times lower than the average delay of an SC-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 an MC-IS network equipped with omnidirectional antennas has been extended to an MC-IS network equipped with directional antennas only, which are named as an MC-IS-DA network. We show that an MC-IS-DA network has an even lower delay of c/([{2}π\θ] CI) compared with an SC-IS network and our MC-IS network. For example, when CI=12 and θ=π/12, an MC-IS-DA can further reduce the delay by 24 times lower than that of an MC-IS network and by 288 times lower than that of an SC-IS network.
AB - 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 an MC-IS network. Our proposed MC-IS network has a number of advantages over three existing conventional networks: a single-channel wireless ad hoc network (called an SC-AH network), a multichannel wireless ad hoc network (called an MC-AH network), and a single-channel network with infrastructure support (called an SC-IS network). In particular, the network capacity of our proposed MC-IS network is √{n log n} times higher than that of an SC-AH network and an MC-AH network and the same as that of an SC-IS network, where $n$ is the number of nodes in the network. The average delay of our MC-IS network is √{log n/n} times lower than that of an SC-AH network and an MC-AH network and min{CI},m} times lower than the average delay of an SC-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 an MC-IS network equipped with omnidirectional antennas has been extended to an MC-IS network equipped with directional antennas only, which are named as an MC-IS-DA network. We show that an MC-IS-DA network has an even lower delay of c/([{2}π\θ] CI) compared with an SC-IS network and our MC-IS network. For example, when CI=12 and θ=π/12, an MC-IS-DA can further reduce the delay by 24 times lower than that of an MC-IS network and by 288 times lower than that of an SC-IS network.
KW - Delay
KW - Infrastructure
KW - Multi-channel
KW - Throughput
KW - Wireless networks
UR - http://www.scopus.com/inward/record.url?scp=85013054811&partnerID=8YFLogxK
U2 - 10.1109/TVT.2016.2553783
DO - 10.1109/TVT.2016.2553783
M3 - Journal article
AN - SCOPUS:85013054811
SN - 0018-9545
VL - 66
SP - 1589
EP - 1604
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
IS - 2
ER -