Impact of the secondary service transmit power constraint on the achievable capacity of spectrum sharing in rayleigh fading environment

Khoshkholgh, Mohammad and Navaie, Keivan and Yanikomeroglu, Halim (2008) Impact of the secondary service transmit power constraint on the achievable capacity of spectrum sharing in rayleigh fading environment. IEEE Communications Letters, 12 (12). pp. 865-870. ISSN 1089-7798

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Abstract

The two main constraints on the transmit power allocation of the secondary service in a spectrum sharing scheme are the received interference threshold at the primary receiver, and the maximum transmit power of the secondary user. We obtain a critical system parameter which relates these two constraints and enables the system designer to eliminate the interference threshold constraint by adjusting the maximum transmit power of the secondary users. Eliminating the interference threshold constraint significantly reduces the system complexity by making the power allocation of the secondary service independent from the channel state information between the secondary transmitter and the primary receiver; thus removes the need for signaling between primary and secondary systems.

Item Type:
Journal Article
Journal or Publication Title:
IEEE Communications Letters
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2200/2208
Subjects:
ID Code:
72610
Deposited By:
Deposited On:
27 Jan 2015 08:22
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 09:07