Abstract
This paper analyzes the impact of directional antennas in improving the transmission capacity, defined as the maximum allowable spatial node density of successful transmissions multiplied by their data rate with a given outage constraint, in wireless networks. We consider the case where the gain Gm for the mainlobe of beamwidth can scale at an arbitrarily large rate. Under the beamwidth scaling model, the transmission capacity is analyzed for all path-loss attenuation regimes for the following two network configurations. In dense networks, in which the spatial node density increases with the antenna gain Gm, the transmission capacity scales as G4/α m , where α denotes the path-loss exponent. On the other hand, in extended networks of fixed node density, the transmission capacity scales logarithmically in Gm. For comparison, we also show an ideal antenna model where there is no sidelobe beam. In addition, computer simulations are performed, which show trends consistent with our analytical behaviors. Our analysis sheds light on a new understanding of the fundamental limit of outage-constrained ad hoc networks operating in the directional mode.
| Original language | English |
|---|---|
| Pages (from-to) | 2202-2211 |
| Number of pages | 10 |
| Journal | IEICE Transactions on Communications |
| Volume | E98B |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2015 Nov |
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All Science Journal Classification (ASJC) codes
- Software
- Computer Networks and Communications
- Electrical and Electronic Engineering
Cite this
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Beamwidth scaling inwireless networks with outage constraints. / Do, Trung Anh; Shin, Won Yong.
In: IEICE Transactions on Communications, Vol. E98B, No. 11, 11.2015, p. 2202-2211.Research output: Contribution to journal › Article
TY - JOUR
T1 - Beamwidth scaling inwireless networks with outage constraints
AU - Do, Trung Anh
AU - Shin, Won Yong
PY - 2015/11
Y1 - 2015/11
N2 - This paper analyzes the impact of directional antennas in improving the transmission capacity, defined as the maximum allowable spatial node density of successful transmissions multiplied by their data rate with a given outage constraint, in wireless networks. We consider the case where the gain Gm for the mainlobe of beamwidth can scale at an arbitrarily large rate. Under the beamwidth scaling model, the transmission capacity is analyzed for all path-loss attenuation regimes for the following two network configurations. In dense networks, in which the spatial node density increases with the antenna gain Gm, the transmission capacity scales as G4/α m , where α denotes the path-loss exponent. On the other hand, in extended networks of fixed node density, the transmission capacity scales logarithmically in Gm. For comparison, we also show an ideal antenna model where there is no sidelobe beam. In addition, computer simulations are performed, which show trends consistent with our analytical behaviors. Our analysis sheds light on a new understanding of the fundamental limit of outage-constrained ad hoc networks operating in the directional mode.
AB - This paper analyzes the impact of directional antennas in improving the transmission capacity, defined as the maximum allowable spatial node density of successful transmissions multiplied by their data rate with a given outage constraint, in wireless networks. We consider the case where the gain Gm for the mainlobe of beamwidth can scale at an arbitrarily large rate. Under the beamwidth scaling model, the transmission capacity is analyzed for all path-loss attenuation regimes for the following two network configurations. In dense networks, in which the spatial node density increases with the antenna gain Gm, the transmission capacity scales as G4/α m , where α denotes the path-loss exponent. On the other hand, in extended networks of fixed node density, the transmission capacity scales logarithmically in Gm. For comparison, we also show an ideal antenna model where there is no sidelobe beam. In addition, computer simulations are performed, which show trends consistent with our analytical behaviors. Our analysis sheds light on a new understanding of the fundamental limit of outage-constrained ad hoc networks operating in the directional mode.
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U2 - 10.1587/transcom.E98.B.2202
DO - 10.1587/transcom.E98.B.2202
M3 - Article
AN - SCOPUS:84947976214
VL - E98B
SP - 2202
EP - 2211
JO - IEICE Transactions on Communications
JF - IEICE Transactions on Communications
SN - 0916-8516
IS - 11
ER -