Cognitive Radio Operation under Directional Primary Interference and Practical Path Loss Models

Kentaro NISHIMORI; Rocco DI TARANTO; Hiroyuki YOMO; Petar POPOVSKI

doi:10.1587/transcom.E94.B.1243

Cognitive Radio Operation under Directional Primary Interference and Practical Path Loss Models

Kentaro NISHIMORI, Rocco DI TARANTO, Hiroyuki YOMO, Petar POPOVSKI

Full Text Views

0

Share
Cite this

Summary :

This paper discusses the possibility of deploying a short-range cognitive radio (secondary communication system) within the service area of a primary system. Although the secondary system interferes with the primary system, there are certain locations in the service area of the primary system where the cognitive radio can reuse the frequency of the primary system without causing harmful interference to it and being disturbed by the primary system. These locations are referred to as having a spatial opportunity for communications in the secondary system, since it can reuse the frequency of the primary system. Simulation results indicate that the antenna gain, beamwidth, and propagation path loss greatly affect the spatial opportunity of frequency reuse for the secondary users. The results show that spatial spectrum reuse can be significantly increased when the primary system users are equipped with directional antennas. An important component in this study is the heterogeneous path loss model, i.e., the path loss model within the primary system is different from the model used to calculate the interference between the primary and the secondary systems. Our results show that the propagation models corresponding to the actual antenna heights in the primary/secondary system can largely impact the possibilities for spectrum reuse by the cognitive radios.

Publication: IEICE TRANSACTIONS on Communications Vol.E94-B No.5 pp.1243-1253

Publication Date: 2011/05/01

Publicized

Online ISSN: 1745-1345

DOI: 10.1587/transcom.E94.B.1243

Type of Manuscript: Special Section PAPER (Special Section on Antenna and Propagation Technologies Contributing to Diversification of Wireless Technologies)

Category: Radio System

Cite this

Copy

Kentaro NISHIMORI, Rocco DI TARANTO, Hiroyuki YOMO, Petar POPOVSKI, "Cognitive Radio Operation under Directional Primary Interference and Practical Path Loss Models" in IEICE TRANSACTIONS on Communications, vol. E94-B, no. 5, pp. 1243-1253, May 2011, doi: 10.1587/transcom.E94.B.1243.
Abstract: This paper discusses the possibility of deploying a short-range cognitive radio (secondary communication system) within the service area of a primary system. Although the secondary system interferes with the primary system, there are certain locations in the service area of the primary system where the cognitive radio can reuse the frequency of the primary system without causing harmful interference to it and being disturbed by the primary system. These locations are referred to as having a spatial opportunity for communications in the secondary system, since it can reuse the frequency of the primary system. Simulation results indicate that the antenna gain, beamwidth, and propagation path loss greatly affect the spatial opportunity of frequency reuse for the secondary users. The results show that spatial spectrum reuse can be significantly increased when the primary system users are equipped with directional antennas. An important component in this study is the heterogeneous path loss model, i.e., the path loss model within the primary system is different from the model used to calculate the interference between the primary and the secondary systems. Our results show that the propagation models corresponding to the actual antenna heights in the primary/secondary system can largely impact the possibilities for spectrum reuse by the cognitive radios.
URL: https://globals.ieice.org/en_transactions/communications/10.1587/transcom.E94.B.1243/_p

Copy

@ARTICLE{e94-b_5_1243,
author={Kentaro NISHIMORI, Rocco DI TARANTO, Hiroyuki YOMO, Petar POPOVSKI, },
journal={IEICE TRANSACTIONS on Communications},
title={Cognitive Radio Operation under Directional Primary Interference and Practical Path Loss Models},
year={2011},
volume={E94-B},
number={5},
pages={1243-1253},
abstract={This paper discusses the possibility of deploying a short-range cognitive radio (secondary communication system) within the service area of a primary system. Although the secondary system interferes with the primary system, there are certain locations in the service area of the primary system where the cognitive radio can reuse the frequency of the primary system without causing harmful interference to it and being disturbed by the primary system. These locations are referred to as having a spatial opportunity for communications in the secondary system, since it can reuse the frequency of the primary system. Simulation results indicate that the antenna gain, beamwidth, and propagation path loss greatly affect the spatial opportunity of frequency reuse for the secondary users. The results show that spatial spectrum reuse can be significantly increased when the primary system users are equipped with directional antennas. An important component in this study is the heterogeneous path loss model, i.e., the path loss model within the primary system is different from the model used to calculate the interference between the primary and the secondary systems. Our results show that the propagation models corresponding to the actual antenna heights in the primary/secondary system can largely impact the possibilities for spectrum reuse by the cognitive radios.},
keywords={},
doi={10.1587/transcom.E94.B.1243},
ISSN={1745-1345},
month={May},}

Copy

TY - JOUR
TI - Cognitive Radio Operation under Directional Primary Interference and Practical Path Loss Models
T2 - IEICE TRANSACTIONS on Communications
SP - 1243
EP - 1253
AU - Kentaro NISHIMORI
AU - Rocco DI TARANTO
AU - Hiroyuki YOMO
AU - Petar POPOVSKI
PY - 2011
DO - 10.1587/transcom.E94.B.1243
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E94-B
IS - 5
JA - IEICE TRANSACTIONS on Communications
Y1 - May 2011
AB - This paper discusses the possibility of deploying a short-range cognitive radio (secondary communication system) within the service area of a primary system. Although the secondary system interferes with the primary system, there are certain locations in the service area of the primary system where the cognitive radio can reuse the frequency of the primary system without causing harmful interference to it and being disturbed by the primary system. These locations are referred to as having a spatial opportunity for communications in the secondary system, since it can reuse the frequency of the primary system. Simulation results indicate that the antenna gain, beamwidth, and propagation path loss greatly affect the spatial opportunity of frequency reuse for the secondary users. The results show that spatial spectrum reuse can be significantly increased when the primary system users are equipped with directional antennas. An important component in this study is the heterogeneous path loss model, i.e., the path loss model within the primary system is different from the model used to calculate the interference between the primary and the secondary systems. Our results show that the propagation models corresponding to the actual antenna heights in the primary/secondary system can largely impact the possibilities for spectrum reuse by the cognitive radios.
ER -