For Full-Text PDF, please login, if you are a member of IEICE,|
or go to Pay Per View on menu list, if you are a nonmember of IEICE.
Spectrum Sharing by Adaptive Transmit Power Control for Low Priority Systems and Achievable Capacity
Hiromasa FUJII Hitoshi YOSHINO
IEICE TRANSACTIONS on Communications
Publication Date: 2009/08/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Fundamental Theories for Communications
spectrum sharing, capacity, system priorities, transmit power control,
Full Text: PDF(1.2MB)>>
A spectrum sharing method is proposed for systems that share the same frequency band or adjacent bands with services that have different priorities. The proposed method adaptively controls transmission power according to information provided by the high-priority system receivers. We give the theoretical capacities achieved by low-priority systems when the proposed method and a conventional method (constant transmit power) are applied. Numerical results confirm that the proposed method attains 1.5-2 times larger capacity than the conventional method.